diff --git a/app/assets/javascripts/admin/components/admin-report.js.es6 b/app/assets/javascripts/admin/components/admin-report.js.es6
index c7f03112084..05babdbdf45 100644
--- a/app/assets/javascripts/admin/components/admin-report.js.es6
+++ b/app/assets/javascripts/admin/components/admin-report.js.es6
@@ -1,7 +1,7 @@
 import ReportLoader from "discourse/lib/reports-loader";
-import Category from "discourse/models/category";
 import { exportEntity } from "discourse/lib/export-csv";
 import { outputExportResult } from "discourse/lib/export-result";
+import { isNumeric } from "discourse/lib/utilities";
 import { SCHEMA_VERSION, default as Report } from "admin/models/report";
 import computed from "ember-addons/ember-computed-decorators";
 
@@ -50,21 +50,15 @@ export default Ember.Component.extend({
   filters: null,
   startDate: null,
   endDate: null,
-  category: null,
-  groupId: null,
-  filter: null,
   showTrend: false,
   showHeader: true,
   showTitle: true,
   showFilteringUI: false,
-  showCategoryOptions: Ember.computed.alias("model.category_filtering"),
   showDatesOptions: Ember.computed.alias("model.dates_filtering"),
-  showGroupOptions: Ember.computed.alias("model.group_filtering"),
   showExport: Ember.computed.not("model.onlyTable"),
   showRefresh: Ember.computed.or(
-    "showCategoryOptions",
     "showDatesOptions",
-    "showGroupOptions"
+    "model.available_filters.length"
   ),
   shouldDisplayTrend: Ember.computed.and("showTrend", "model.prev_period"),
 
@@ -74,19 +68,12 @@ export default Ember.Component.extend({
     this._reports = [];
   },
 
+  startDate: Ember.computed.alias("filters.startDate"),
+  endDate: Ember.computed.alias("filters.endDate"),
+
   didReceiveAttrs() {
     this._super(...arguments);
 
-    const state = this.get("filters") || {};
-
-    this.setProperties({
-      category: Category.findById(state.categoryId),
-      groupId: state.groupId,
-      filter: state.filter,
-      startDate: state.startDate,
-      endDate: state.endDate
-    });
-
     if (this.get("report")) {
       this._renderReport(
         this.get("report"),
@@ -125,8 +112,6 @@ export default Ember.Component.extend({
     return displayedModesLength > 1;
   },
 
-  categoryId: Ember.computed.alias("category.id"),
-
   @computed("currentMode", "model.modes", "forcedModes")
   displayedModes(currentMode, reportModes, forcedModes) {
     const modes = forcedModes ? forcedModes.split(",") : reportModes;
@@ -143,35 +128,11 @@ export default Ember.Component.extend({
     });
   },
 
-  @computed()
-  groupOptions() {
-    const arr = [
-      { name: I18n.t("admin.dashboard.reports.groups"), value: "all" }
-    ];
-    return arr.concat(
-      (this.site.groups || []).map(i => {
-        return { name: i["name"], value: i["id"] };
-      })
-    );
-  },
-
   @computed("currentMode")
   modeComponent(currentMode) {
     return `admin-report-${currentMode}`;
   },
 
-  @computed("model.filter_options")
-  filterOptions(options) {
-    if (options) {
-      return options.map(option => {
-        if (option.allowAny) {
-          option.choices.unshift(I18n.t("admin.dashboard.report_filter_any"));
-        }
-        return option;
-      });
-    }
-  },
-
   @computed("startDate")
   normalizedStartDate(startDate) {
     return startDate && typeof startDate.isValid === "function"
@@ -198,25 +159,25 @@ export default Ember.Component.extend({
 
   @computed(
     "dataSourceName",
-    "categoryId",
-    "groupId",
-    "filter",
     "normalizedStartDate",
-    "normalizedEndDate"
+    "normalizedEndDate",
+    "filters.customFilters"
   )
-  reportKey(dataSourceName, categoryId, groupId, filter, startDate, endDate) {
+  reportKey(dataSourceName, startDate, endDate, customFilters) {
     if (!dataSourceName || !startDate || !endDate) return null;
 
     let reportKey = "reports:";
     reportKey += [
       dataSourceName,
-      categoryId,
       startDate.replace(/-/g, ""),
       endDate.replace(/-/g, ""),
-      groupId,
-      filter,
       "[:prev_period]",
       this.get("reportOptions.table.limit"),
+      customFilters
+        ? JSON.stringify(customFilters, (key, value) =>
+            isNumeric(value) ? value.toString() : value
+          )
+        : null,
       SCHEMA_VERSION
     ]
       .filter(x => x)
@@ -227,49 +188,40 @@ export default Ember.Component.extend({
   },
 
   actions: {
-    filter(filterOptionId, value) {
-      let params = [];
-      let paramPairs = {};
-      let newParams = [];
+    applyFilter(id, value) {
+      let customFilters = this.get("filters.customFilters") || {};
 
-      if (this.get("filter")) {
-        const filter = this.get("filter").slice(1, -1);
-        params = filter.split("&") || [];
-        params.map(p => {
-          const pair = p.split("=");
-          paramPairs[pair[0]] = pair[1];
-        });
+      if (typeof value === "undefined") {
+        delete customFilters[id];
+      } else {
+        customFilters[id] = value;
       }
 
-      paramPairs[filterOptionId] = value;
-      Object.keys(paramPairs).forEach(key => {
-        if (paramPairs[key] !== I18n.t("admin.dashboard.report_filter_any")) {
-          newParams.push(`${key}=${paramPairs[key]}`);
-        }
+      this.attrs.onRefresh({
+        type: this.get("model.type"),
+        startDate: this.get("startDate"),
+        endDate: this.get("endDate"),
+        filters: customFilters
       });
-
-      this.set("filter", `[${newParams.join("&")}]`);
     },
 
     refreshReport() {
       this.attrs.onRefresh({
-        categoryId: this.get("categoryId"),
-        groupId: this.get("groupId"),
-        filter: this.get("filter"),
         startDate: this.get("startDate"),
-        endDate: this.get("endDate")
+        endDate: this.get("endDate"),
+        filters: this.get("filters.customFilters")
       });
     },
 
     exportCsv() {
+      const customFilters = this.get("filters.customFilters");
+
       exportEntity("report", {
         name: this.get("model.type"),
-        start_date: this.get("startDate"),
-        end_date: this.get("endDate"),
-        category_id:
-          this.get("categoryId") === "all" ? undefined : this.get("categoryId"),
-        group_id:
-          this.get("groupId") === "all" ? undefined : this.get("groupId")
+        startDate: this.get("startDate"),
+        endDate: this.get("endDate"),
+        category_id: customFilters.category,
+        group_id: customFilters.group
       }).then(outputExportResult);
     },
 
@@ -383,22 +335,14 @@ export default Ember.Component.extend({
         .toISOString();
     }
 
-    if (this.get("groupId") && this.get("groupId") !== "all") {
-      payload.data.group_id = this.get("groupId");
-    }
-
-    if (this.get("categoryId") && this.get("categoryId") !== "all") {
-      payload.data.category_id = this.get("categoryId");
-    }
-
-    if (this.get("filter") && this.get("filter") !== "all") {
-      payload.data.filter = this.get("filter");
-    }
-
     if (this.get("reportOptions.table.limit")) {
       payload.data.limit = this.get("reportOptions.table.limit");
     }
 
+    if (this.get("filters.customFilters")) {
+      payload.data.filters = this.get("filters.customFilters");
+    }
+
     return payload;
   },
 
@@ -443,8 +387,8 @@ export default Ember.Component.extend({
       Report.fillMissingDates(jsonReport, {
         filledField: "prevChartData",
         dataField: "prev_data",
-        starDate: jsonReport.prev_start_date,
-        endDate: jsonReport.prev_end_date
+        starDate: jsonReport.prev_startDate,
+        endDate: jsonReport.prev_endDate
       });
 
       if (jsonReport.prevChartData && jsonReport.prevChartData.length > 40) {
diff --git a/app/assets/javascripts/admin/components/report-filters/category.js.es6 b/app/assets/javascripts/admin/components/report-filters/category.js.es6
new file mode 100644
index 00000000000..d1c910ad18d
--- /dev/null
+++ b/app/assets/javascripts/admin/components/report-filters/category.js.es6
@@ -0,0 +1,14 @@
+import Category from "discourse/models/category";
+import { default as computed } from "ember-addons/ember-computed-decorators";
+import FilterComponent from "admin/components/report-filters/filter";
+
+export default FilterComponent.extend({
+  classNames: ["category-filter"],
+
+  layoutName: "admin/templates/components/report-filters/category",
+
+  @computed("filter.default")
+  category(categoryId) {
+    return Category.findById(categoryId);
+  }
+});
diff --git a/app/assets/javascripts/admin/components/report-filters/file-extension.js.es6 b/app/assets/javascripts/admin/components/report-filters/file-extension.js.es6
new file mode 100644
index 00000000000..d8eb1b5b062
--- /dev/null
+++ b/app/assets/javascripts/admin/components/report-filters/file-extension.js.es6
@@ -0,0 +1,7 @@
+import FilterComponent from "admin/components/report-filters/filter";
+
+export default FilterComponent.extend({
+  classNames: ["file-extension-filter"],
+
+  layoutName: "admin/templates/components/report-filters/file-extension"
+});
diff --git a/app/assets/javascripts/admin/components/report-filters/filter.js.es6 b/app/assets/javascripts/admin/components/report-filters/filter.js.es6
new file mode 100644
index 00000000000..25f2464f951
--- /dev/null
+++ b/app/assets/javascripts/admin/components/report-filters/filter.js.es6
@@ -0,0 +1,7 @@
+export default Ember.Component.extend({
+  actions: {
+    onChange(value) {
+      this.applyFilter(this.get("filter.id"), value);
+    }
+  }
+});
diff --git a/app/assets/javascripts/admin/components/report-filters/group.js.es6 b/app/assets/javascripts/admin/components/report-filters/group.js.es6
new file mode 100644
index 00000000000..54523f9446e
--- /dev/null
+++ b/app/assets/javascripts/admin/components/report-filters/group.js.es6
@@ -0,0 +1,20 @@
+import FilterComponent from "admin/components/report-filters/filter";
+import { default as computed } from "ember-addons/ember-computed-decorators";
+
+export default FilterComponent.extend({
+  classNames: ["group-filter"],
+
+  layoutName: "admin/templates/components/report-filters/group",
+
+  @computed()
+  groupOptions() {
+    return (this.site.groups || []).map(group => {
+      return { name: group["name"], value: group["id"] };
+    });
+  },
+
+  @computed("filter.default")
+  groupId(filterDefault) {
+    return filterDefault ? parseInt(filterDefault, 10) : null;
+  }
+});
diff --git a/app/assets/javascripts/admin/controllers/admin-reports-show.js.es6 b/app/assets/javascripts/admin/controllers/admin-reports-show.js.es6
index 8c773181ed9..2a78ece7f41 100644
--- a/app/assets/javascripts/admin/controllers/admin-reports-show.js.es6
+++ b/app/assets/javascripts/admin/controllers/admin-reports-show.js.es6
@@ -1,7 +1,10 @@
 import computed from "ember-addons/ember-computed-decorators";
 
 export default Ember.Controller.extend({
-  queryParams: ["start_date", "end_date", "category_id", "group_id", "filter"],
+  queryParams: ["start_date", "end_date", "filters"],
+  start_date: null,
+  end_date: null,
+  filters: null,
 
   @computed("model.type")
   reportOptions(type) {
@@ -12,28 +15,5 @@ export default Ember.Controller.extend({
     }
 
     return options;
-  },
-
-  @computed("category_id", "group_id", "start_date", "end_date", "filter")
-  filters(categoryId, groupId, startDate, endDate, filter) {
-    return {
-      categoryId,
-      groupId,
-      filter,
-      startDate,
-      endDate
-    };
-  },
-
-  actions: {
-    onParamsChange(params) {
-      this.setProperties({
-        start_date: params.startDate,
-        filter: params.filter,
-        category_id: params.categoryId,
-        group_id: params.groupId,
-        end_date: params.endDate
-      });
-    }
   }
 });
diff --git a/app/assets/javascripts/admin/models/report.js.es6 b/app/assets/javascripts/admin/models/report.js.es6
index 19a1579e5db..0f030b509ba 100644
--- a/app/assets/javascripts/admin/models/report.js.es6
+++ b/app/assets/javascripts/admin/models/report.js.es6
@@ -8,7 +8,7 @@ import { renderAvatar } from "discourse/helpers/user-avatar";
 
 // Change this line each time report format change
 // and you want to ensure cache is reset
-export const SCHEMA_VERSION = 3;
+export const SCHEMA_VERSION = 4;
 
 const Report = Discourse.Model.extend({
   average: false,
diff --git a/app/assets/javascripts/admin/routes/admin-reports-show.js.es6 b/app/assets/javascripts/admin/routes/admin-reports-show.js.es6
index 55503091e13..9bf9ff8ebaf 100644
--- a/app/assets/javascripts/admin/routes/admin-reports-show.js.es6
+++ b/app/assets/javascripts/admin/routes/admin-reports-show.js.es6
@@ -1,27 +1,65 @@
 export default Discourse.Route.extend({
-  setupController(controller) {
-    this._super(...arguments);
+  queryParams: {
+    start_date: { refreshModel: true },
+    end_date: { refreshModel: true },
+    filters: { refreshModel: true }
+  },
 
-    if (!controller.get("start_date")) {
-      controller.set(
-        "start_date",
-        moment
-          .utc()
-          .subtract(1, "day")
-          .subtract(1, "month")
-          .startOf("day")
-          .format("YYYY-MM-DD")
-      );
+  model(params) {
+    params.customFilters = params.filters;
+    delete params.filters;
+
+    params.startDate =
+      params.start_date ||
+      moment
+        .utc()
+        .subtract(1, "day")
+        .subtract(1, "month")
+        .startOf("day")
+        .format("YYYY-MM-DD");
+    delete params.start_date;
+
+    params.endDate =
+      params.end_date ||
+      moment
+        .utc()
+        .endOf("day")
+        .format("YYYY-MM-DD");
+    delete params.end_date;
+
+    return params;
+  },
+
+  deserializeQueryParam(value, urlKey, defaultValueType) {
+    if (urlKey === "filters") {
+      return JSON.parse(decodeURIComponent(value));
     }
 
-    if (!controller.get("end_date")) {
-      controller.set(
-        "end_date",
-        moment()
-          .utc()
-          .endOf("day")
-          .format("YYYY-MM-DD")
-      );
+    return this._super(value, urlKey, defaultValueType);
+  },
+
+  serializeQueryParam(value, urlKey, defaultValueType) {
+    if (urlKey === "filters") {
+      if (value && Object.keys(value).length > 0) {
+        return JSON.stringify(value);
+      } else {
+        return null;
+      }
+    }
+
+    return this._super(value, urlKey, defaultValueType);
+  },
+
+  actions: {
+    onParamsChange(params) {
+      const queryParams = {
+        type: params.type,
+        start_date: params.startDate,
+        filters: params.filters,
+        end_date: params.endDate
+      };
+
+      this.transitionTo("adminReports.show", { queryParams });
     }
   }
 });
diff --git a/app/assets/javascripts/admin/templates/components/admin-report.hbs b/app/assets/javascripts/admin/templates/components/admin-report.hbs
index 888be8dd22d..7181ac3dd11 100644
--- a/app/assets/javascripts/admin/templates/components/admin-report.hbs
+++ b/app/assets/javascripts/admin/templates/components/admin-report.hbs
@@ -149,38 +149,17 @@
           </div>
         {{/if}}
 
-        {{#if showCategoryOptions}}
+        {{#each model.available_filters as |filter|}}
           <div class="control">
-            <div class="input">
-              {{search-advanced-category-chooser
-                filterable=true
-                value=category
-                castInteger=true}}
-            </div>
-          </div>
-        {{/if}}
+            <span class="label">
+              {{i18n (concat "admin.dashboard.reports.filters." filter.id ".label")}}
+            </span>
 
-        {{#if showGroupOptions}}
-          <div class="control">
             <div class="input">
-              {{combo-box
-                castInteger=true
-                filterable=true
-                valueAttribute="value"
-                content=groupOptions
-                value=groupId}}
-            </div>
-          </div>
-        {{/if}}
-
-        {{#each filterOptions as |filterOption|}}
-          <div class="control">
-            <div class="input">
-              {{combo-box content=filterOption.choices
-                          filterable=true
-                          allowAny=true
-                          value=filterOption.selected
-                          onSelect=(action "filter" filterOption.id)}}
+              {{component
+                (concat "report-filters/" filter.id)
+                filter=filter
+                applyFilter=(action "applyFilter")}}
             </div>
           </div>
         {{/each}}
diff --git a/app/assets/javascripts/admin/templates/components/report-filters/category.hbs b/app/assets/javascripts/admin/templates/components/report-filters/category.hbs
new file mode 100644
index 00000000000..9ad96c6be60
--- /dev/null
+++ b/app/assets/javascripts/admin/templates/components/report-filters/category.hbs
@@ -0,0 +1,6 @@
+{{search-advanced-category-chooser
+  filterable=true
+  value=category
+  castInteger=true
+  onSelectNone=(action "onChange")
+  onSelect=(action "onChange")}}
diff --git a/app/assets/javascripts/admin/templates/components/report-filters/file-extension.hbs b/app/assets/javascripts/admin/templates/components/report-filters/file-extension.hbs
new file mode 100644
index 00000000000..871179d63d6
--- /dev/null
+++ b/app/assets/javascripts/admin/templates/components/report-filters/file-extension.hbs
@@ -0,0 +1,8 @@
+{{combo-box
+  content=filter.choices
+  filterable=true
+  allowAny=filter.allow_any
+  value=filter.default
+  none="admin.dashboard.report_filter_any"
+  onSelectNone=(action "onChange")
+  onSelect=(action "onChange")}}
diff --git a/app/assets/javascripts/admin/templates/components/report-filters/group.hbs b/app/assets/javascripts/admin/templates/components/report-filters/group.hbs
new file mode 100644
index 00000000000..0209c1cb6e8
--- /dev/null
+++ b/app/assets/javascripts/admin/templates/components/report-filters/group.hbs
@@ -0,0 +1,10 @@
+{{combo-box
+  castInteger=true
+  filterable=true
+  valueAttribute="value"
+  content=groupOptions
+  value=groupId
+  allowAny=filter.allow_any
+  none="admin.dashboard.reports.groups"
+  onSelectNone=(action "onChange")
+  onSelect=(action "onChange")}}
diff --git a/app/assets/javascripts/admin/templates/reports-show.hbs b/app/assets/javascripts/admin/templates/reports-show.hbs
index 899a8ebd9e7..dac1aa0bbe0 100644
--- a/app/assets/javascripts/admin/templates/reports-show.hbs
+++ b/app/assets/javascripts/admin/templates/reports-show.hbs
@@ -1,7 +1,7 @@
 {{admin-report
   showAllReportsLink=true
   dataSourceName=model.type
-  filters=filters
+  filters=model
   reportOptions=reportOptions
   showFilteringUI=true
-  onRefresh=(action "onParamsChange")}}
+  onRefresh=(route-action "onParamsChange")}}
diff --git a/app/controllers/admin/reports_controller.rb b/app/controllers/admin/reports_controller.rb
index fa5a6e374df..8143d099f7b 100644
--- a/app/controllers/admin/reports_controller.rb
+++ b/app/controllers/admin/reports_controller.rb
@@ -91,18 +91,6 @@ class Admin::ReportsController < Admin::AdminController
     start_date = (report_params[:start_date].present? ? Time.parse(report_params[:start_date]).to_date : 1.days.ago).beginning_of_day
     end_date = (report_params[:end_date].present? ? Time.parse(report_params[:end_date]).to_date : start_date + 30.days).end_of_day
 
-    if report_params.has_key?(:category_id) && report_params[:category_id].to_i > 0
-      category_id = report_params[:category_id].to_i
-    else
-      category_id = nil
-    end
-
-    if report_params.has_key?(:group_id) && report_params[:group_id].to_i > 0
-      group_id = report_params[:group_id].to_i
-    else
-      group_id = nil
-    end
-
     facets = nil
     if Array === report_params[:facets]
       facets = report_params[:facets].map { |s| s.to_s.to_sym }
@@ -113,17 +101,15 @@ class Admin::ReportsController < Admin::AdminController
       limit = report_params[:limit].to_i
     end
 
-    filter = nil
-    if report_params.has_key?(:filter)
-      filter = report_params[:filter]
+    filters = nil
+    if report_params.has_key?(:filters)
+      filters = report_params[:filters]
     end
 
     {
       start_date: start_date,
       end_date: end_date,
-      category_id: category_id,
-      group_id: group_id,
-      filter: filter,
+      filters: filters,
       facets: facets,
       limit: limit
     }
diff --git a/app/models/report.rb b/app/models/report.rb
index 67bcb26d82f..0fb79f2f3e2 100644
--- a/app/models/report.rb
+++ b/app/models/report.rb
@@ -3,14 +3,13 @@ require_dependency 'topic_subtype'
 class Report
   # Change this line each time report format change
   # and you want to ensure cache is reset
-  SCHEMA_VERSION = 3
+  SCHEMA_VERSION = 4
 
   attr_accessor :type, :data, :total, :prev30Days, :start_date,
-                :end_date, :category_id, :group_id, :filter,
-                :labels, :async, :prev_period, :facets, :limit, :processing, :average, :percent,
-                :higher_is_better, :icon, :modes, :category_filtering,
-                :group_filtering, :prev_data, :prev_start_date, :prev_end_date,
-                :dates_filtering, :error, :primary_color, :secondary_color, :filter_options
+                :end_date, :labels, :prev_period, :facets, :limit, :average,
+                :percent, :higher_is_better, :icon, :modes, :prev_data,
+                :prev_start_date, :prev_end_date, :dates_filtering, :error,
+                :primary_color, :secondary_color, :filters, :available_filters
 
   def self.default_days
     30
@@ -24,13 +23,11 @@ class Report
     @average = false
     @percent = false
     @higher_is_better = true
-    @category_filtering = false
-    @group_filtering = false
     @modes = [:table, :chart]
     @prev_data = nil
     @dates_filtering = true
-    @filter_options = nil
-    @filter = nil
+    @available_filters = {}
+    @filters = {}
 
     tertiary = ColorScheme.hex_for_name('tertiary') || '0088cc'
     @primary_color = rgba_color(tertiary)
@@ -41,17 +38,24 @@ class Report
     (+"reports:") <<
     [
       report.type,
-      report.category_id,
       report.start_date.to_date.strftime("%Y%m%d"),
       report.end_date.to_date.strftime("%Y%m%d"),
-      report.group_id,
-      report.filter,
       report.facets,
       report.limit,
+      report.filters.blank? ? nil : MultiJson.dump(report.filters),
       SCHEMA_VERSION,
     ].compact.map(&:to_s).join(':')
   end
 
+  def add_filter(name, options = {})
+    default_filter = { allow_any: false, choices: [], default: nil }
+    available_filters[name] = default_filter.merge(options)
+  end
+
+  def remove_filter(name)
+    available_filters.delete(name)
+  end
+
   def self.clear_cache(type = nil)
     pattern = type ? "reports:#{type}:*" : "reports:*"
 
@@ -76,13 +80,6 @@ class Report
     self.start_date
   end
 
-  def filter_values
-    if self.filter.present?
-      return self.filter.delete_prefix("[").delete_suffix("]").split("&").map { |param| param.split("=") }.to_h
-    end
-    {}
-  end
-
   def as_json(options = nil)
     description = I18n.t("reports.#{type}.description", default: "")
     {
@@ -97,14 +94,12 @@ class Report
       prev_data: self.prev_data,
       prev_start_date: prev_start_date&.iso8601,
       prev_end_date: prev_end_date&.iso8601,
-      category_id: category_id,
-      group_id: group_id,
-      filter: self.filter,
       prev30Days: self.prev30Days,
       dates_filtering: self.dates_filtering,
       report_key: Report.cache_key(self),
       primary_color: self.primary_color,
       secondary_color: self.secondary_color,
+      available_filters: self.available_filters.map { |k, v| { id: k }.merge(v) },
       labels: labels || [
         {
           type: :date,
@@ -117,13 +112,9 @@ class Report
           title: I18n.t("reports.default.labels.count")
         },
       ],
-      processing: self.processing,
       average: self.average,
       percent: self.percent,
       higher_is_better: self.higher_is_better,
-      category_filtering: self.category_filtering,
-      group_filtering: self.group_filtering,
-      filter_options: self.filter_options,
       modes: self.modes,
     }.tap do |json|
       json[:icon] = self.icon if self.icon
@@ -150,15 +141,12 @@ class Report
     report = Report.new(type)
     report.start_date = opts[:start_date] if opts[:start_date]
     report.end_date = opts[:end_date] if opts[:end_date]
-    report.category_id = opts[:category_id] if opts[:category_id]
-    report.group_id = opts[:group_id] if opts[:group_id]
-    report.filter = opts[:filter] if opts[:filter]
     report.facets = opts[:facets] || [:total, :prev30Days]
     report.limit = opts[:limit] if opts[:limit]
-    report.processing = false
     report.average = opts[:average] if opts[:average]
     report.percent = opts[:percent] if opts[:percent]
-    report.higher_is_better = opts[:higher_is_better] if opts[:higher_is_better]
+    report.filters = opts[:filters] if opts[:filters]
+
     report
   end
 
@@ -192,7 +180,6 @@ class Report
         report.error = :timeout
       end
     rescue Exception => e
-
       # In test mode, don't swallow exceptions by default to help debug errors.
       raise if Rails.env.test? && !opts[:wrap_exceptions_in_test]
 
@@ -288,12 +275,15 @@ class Report
   end
 
   def self.post_action_report(report, post_action_type)
+    category_filter = report.filters.dig(:category)
+    report.add_filter('category', default: category_filter)
+
     report.data = []
-    PostAction.count_per_day_for_type(post_action_type, category_id: report.category_id, start_date: report.start_date, end_date: report.end_date).each do |date, count|
+    PostAction.count_per_day_for_type(post_action_type, category_id: category_filter, start_date: report.start_date, end_date: report.end_date).each do |date, count|
       report.data << { x: date, y: count }
     end
     countable = PostAction.unscoped.where(post_action_type_id: post_action_type)
-    countable = countable.joins(post: :topic).merge(Topic.in_category_and_subcategories(report.category_id)) if report.category_id
+    countable = countable.joins(post: :topic).merge(Topic.in_category_and_subcategories(category_filter)) if category_filter
     add_counts report, countable, 'post_actions.created_at'
   end
 
diff --git a/app/models/reports/bookmarks.rb b/app/models/reports/bookmarks.rb
index 1752b560ccb..2a98071c3fa 100644
--- a/app/models/reports/bookmarks.rb
+++ b/app/models/reports/bookmarks.rb
@@ -1,5 +1,5 @@
-Report.add_report("bookmarks") do |report|
-  report.category_filtering = true
+Report.add_report('bookmarks') do |report|
   report.icon = 'bookmark'
+
   post_action_report report, PostActionType.types[:bookmark]
 end
diff --git a/app/models/reports/flags.rb b/app/models/reports/flags.rb
index 8d66da9fd0f..0241089b16f 100644
--- a/app/models/reports/flags.rb
+++ b/app/models/reports/flags.rb
@@ -1,5 +1,7 @@
-Report.add_report("flags") do |report|
-  report.category_filtering = true
+Report.add_report('flags') do |report|
+  category_filter = report.filters.dig(:category)
+  report.add_filter('category', default: category_filter)
+
   report.icon = 'flag'
   report.higher_is_better = false
 
@@ -9,11 +11,14 @@ Report.add_report("flags") do |report|
     :count_by_date,
     report.start_date,
     report.end_date,
-    report.category_id
+    category_filter
   )
 
   countable = ReviewableFlaggedPost.scores_with_topics
-  countable.merge!(Topic.in_category_and_subcategories(report.category_id)) if report.category_id
+
+  if category_filter
+    countable.merge!(Topic.in_category_and_subcategories(category_filter))
+  end
 
   add_counts report, countable, 'reviewable_scores.created_at'
 end
diff --git a/app/models/reports/likes.rb b/app/models/reports/likes.rb
index 0212da61e0d..37f7ea3176e 100644
--- a/app/models/reports/likes.rb
+++ b/app/models/reports/likes.rb
@@ -1,5 +1,5 @@
 Report.add_report("likes") do |report|
-  report.category_filtering = true
   report.icon = 'heart'
+
   post_action_report report, PostActionType.types[:like]
 end
diff --git a/app/models/reports/post_edits.rb b/app/models/reports/post_edits.rb
index a708f4345af..43c039cc0c7 100644
--- a/app/models/reports/post_edits.rb
+++ b/app/models/reports/post_edits.rb
@@ -1,5 +1,7 @@
-Report.add_report("post_edits") do |report|
-  report.category_filtering = true
+Report.add_report('post_edits') do |report|
+  category_filter = report.filters.dig(:category)
+  report.add_filter('category', default: category_filter)
+
   report.modes = [:table]
 
   report.labels = [
@@ -77,14 +79,14 @@ Report.add_report("post_edits") do |report|
   ON u.id = p.user_id
   SQL
 
-  if report.category_id
+  if category_filter
     sql += <<~SQL
     JOIN topics t
     ON t.id = p.topic_id
     WHERE t.category_id = ? OR t.category_id IN (SELECT id FROM categories WHERE categories.parent_category_id = ?)
     SQL
   end
-  result = report.category_id ? DB.query(sql, report.category_id, report.category_id) : DB.query(sql)
+  result = category_filter ? DB.query(sql, category_filter, category_filter) : DB.query(sql)
 
   result.each do |r|
     revision = {}
diff --git a/app/models/reports/posts.rb b/app/models/reports/posts.rb
index 7e7e1f59c0c..51ecdcd8b9a 100644
--- a/app/models/reports/posts.rb
+++ b/app/models/reports/posts.rb
@@ -1,10 +1,14 @@
-Report.add_report("posts") do |report|
+Report.add_report('posts') do |report|
   report.modes = [:table, :chart]
-  report.category_filtering = true
-  basic_report_about report, Post, :public_posts_count_per_day, report.start_date, report.end_date, report.category_id
+
+  category_filter = report.filters.dig(:category)
+  report.add_filter('category', default: category_filter)
+
+  basic_report_about report, Post, :public_posts_count_per_day, report.start_date, report.end_date, category_filter
+
   countable = Post.public_posts.where(post_type: Post.types[:regular])
-  if report.category_id
-    countable = countable.joins(:topic).merge(Topic.in_category_and_subcategories(report.category_id))
+  if category_filter
+    countable = countable.joins(:topic).merge(Topic.in_category_and_subcategories(category_filter))
   end
   add_counts report, countable, 'posts.created_at'
 end
diff --git a/app/models/reports/profile_views.rb b/app/models/reports/profile_views.rb
index a9123da0091..029740d71ec 100644
--- a/app/models/reports/profile_views.rb
+++ b/app/models/reports/profile_views.rb
@@ -1,9 +1,11 @@
-Report.add_report("profile_views") do |report|
-  report.group_filtering = true
+Report.add_report('profile_views') do |report|
+  group_filter = report.filters.dig(:group)
+  report.add_filter('group', default: group_filter)
+
   start_date = report.start_date
   end_date = report.end_date
-  basic_report_about report, UserProfileView, :profile_views_by_day, start_date, end_date, report.group_id
+  basic_report_about report, UserProfileView, :profile_views_by_day, start_date, end_date, group_filter
 
   report.total = UserProfile.sum(:views)
-  report.prev30Days = UserProfileView.where("viewed_at >= ? AND viewed_at < ?", start_date - 30.days, start_date + 1).count
+  report.prev30Days = UserProfileView.where('viewed_at >= ? AND viewed_at < ?', start_date - 30.days, start_date + 1).count
 end
diff --git a/app/models/reports/signups.rb b/app/models/reports/signups.rb
index e9646cd8c63..0531557325e 100644
--- a/app/models/reports/signups.rb
+++ b/app/models/reports/signups.rb
@@ -1,14 +1,13 @@
-Report.add_report("signups") do |report|
-  report.group_filtering = true
-
+Report.add_report('signups') do |report|
   report.icon = 'user-plus'
 
-  if report.group_id
-    basic_report_about report, User.real, :count_by_signup_date, report.start_date, report.end_date, report.group_id
+  group_filter = report.filters.dig(:group)
+  report.add_filter('group', default: group_filter)
+
+  if group_filter
+    basic_report_about report, User.real, :count_by_signup_date, report.start_date, report.end_date, group_filter
     add_counts report, User.real, 'users.created_at'
   else
     report_about report, User.real, :count_by_signup_date
   end
-
-  # add_prev_data report, User.real, :count_by_signup_date, report.prev_start_date, report.prev_end_date
 end
diff --git a/app/models/reports/time_to_first_response.rb b/app/models/reports/time_to_first_response.rb
index 33342b77b5b..d5c9ebf298a 100644
--- a/app/models/reports/time_to_first_response.rb
+++ b/app/models/reports/time_to_first_response.rb
@@ -1,11 +1,16 @@
-Report.add_report("time_to_first_response") do |report|
-  report.category_filtering = true
+Report.add_report('time_to_first_response') do |report|
+  category_filter = report.filters.dig(:category)
+  report.add_filter('category', default: category_filter)
+
   report.icon = 'reply'
   report.higher_is_better = false
   report.data = []
-  Topic.time_to_first_response_per_day(report.start_date, report.end_date, category_id: report.category_id).each do |r|
-    report.data << { x: r["date"], y: r["hours"].to_f.round(2) }
+
+  Topic.time_to_first_response_per_day(report.start_date, report.end_date, category_id: category_filter).each do |r|
+    report.data << { x: r['date'], y: r['hours'].to_f.round(2) }
   end
-  report.total = Topic.time_to_first_response_total(category_id: report.category_id)
-  report.prev30Days = Topic.time_to_first_response_total(start_date: report.start_date - 30.days, end_date: report.start_date, category_id: report.category_id)
+
+  report.total = Topic.time_to_first_response_total(category_id: category_filter)
+
+  report.prev30Days = Topic.time_to_first_response_total(start_date: report.start_date - 30.days, end_date: report.start_date, category_id: category_filter)
 end
diff --git a/app/models/reports/top_referred_topics.rb b/app/models/reports/top_referred_topics.rb
index 635aab136ce..a818215ff86 100644
--- a/app/models/reports/top_referred_topics.rb
+++ b/app/models/reports/top_referred_topics.rb
@@ -1,5 +1,6 @@
-Report.add_report("top_referred_topics") do |report|
-  report.category_filtering = true
+Report.add_report('top_referred_topics') do |report|
+  category_filter = report.filters.dig(:category)
+  report.add_filter('category', default: category_filter)
 
   report.modes = [:table]
 
@@ -10,12 +11,12 @@ Report.add_report("top_referred_topics") do |report|
         title: :topic_title,
         id: :topic_id
       },
-      title: I18n.t("reports.top_referred_topics.labels.topic")
+      title: I18n.t('reports.top_referred_topics.labels.topic')
     },
     {
       property: :num_clicks,
       type: :number,
-      title: I18n.t("reports.top_referred_topics.labels.num_clicks")
+      title: I18n.t('reports.top_referred_topics.labels.num_clicks')
     }
   ]
 
@@ -23,7 +24,7 @@ Report.add_report("top_referred_topics") do |report|
     end_date: report.end_date,
     start_date: report.start_date,
     limit: report.limit || 8,
-    category_id: report.category_id
+    category_id: category_filter
   }
   result = nil
   result = IncomingLinksReport.find(:top_referred_topics, options)
diff --git a/app/models/reports/top_traffic_sources.rb b/app/models/reports/top_traffic_sources.rb
index 45c0ee91461..90fcb92ce5a 100644
--- a/app/models/reports/top_traffic_sources.rb
+++ b/app/models/reports/top_traffic_sources.rb
@@ -1,22 +1,23 @@
-Report.add_report("top_traffic_sources") do |report|
-  report.category_filtering = true
+Report.add_report('top_traffic_sources') do |report|
+  category_filter = report.filters.dig(:category)
+  report.add_filter('category', default: category_filter)
 
   report.modes = [:table]
 
   report.labels = [
     {
       property: :domain,
-      title: I18n.t("reports.top_traffic_sources.labels.domain")
+      title: I18n.t('reports.top_traffic_sources.labels.domain')
     },
     {
       property: :num_clicks,
       type: :number,
-      title: I18n.t("reports.top_traffic_sources.labels.num_clicks")
+      title: I18n.t('reports.top_traffic_sources.labels.num_clicks')
     },
     {
       property: :num_topics,
       type: :number,
-      title: I18n.t("reports.top_traffic_sources.labels.num_topics")
+      title: I18n.t('reports.top_traffic_sources.labels.num_topics')
     }
   ]
 
@@ -24,7 +25,7 @@ Report.add_report("top_traffic_sources") do |report|
     end_date: report.end_date,
     start_date: report.start_date,
     limit: report.limit || 8,
-    category_id: report.category_id
+    category_id: category_filter
   }
 
   result = IncomingLinksReport.find(:top_traffic_sources, options)
diff --git a/app/models/reports/top_uploads.rb b/app/models/reports/top_uploads.rb
index f52c9e41a50..c27790a3775 100644
--- a/app/models/reports/top_uploads.rb
+++ b/app/models/reports/top_uploads.rb
@@ -1,14 +1,13 @@
-Report.add_report("top_uploads") do |report|
+Report.add_report('top_uploads') do |report|
   report.modes = [:table]
 
-  report.filter_options = [
-    {
-      id: "file-extension",
-      selected: report.filter_values.fetch("file-extension", "any"),
-      choices: (SiteSetting.authorized_extensions.split("|") + report.filter_values.values).uniq,
-      allowAny: true
-    }
-  ]
+  extension_filter = report.filters.dig(:"file-extension")
+  report.add_filter('file-extension',
+    default: extension_filter || 'any',
+    choices: (
+      SiteSetting.authorized_extensions.split('|') + Array(extension_filter)
+    ).uniq
+  )
 
   report.labels = [
     {
@@ -59,12 +58,15 @@ Report.add_report("top_uploads") do |report|
   LIMIT #{report.limit || 250}
   SQL
 
-  extension_filter = report.filter_values["file-extension"]
   builder = DB.build(sql)
   builder.where("up.id > :seeded_id_threshold", seeded_id_threshold: Upload::SEEDED_ID_THRESHOLD)
   builder.where("up.created_at >= :start_date", start_date: report.start_date)
   builder.where("up.created_at < :end_date", end_date: report.end_date)
-  builder.where("up.extension = :extension", extension: extension_filter) if extension_filter.present?
+
+  if extension_filter
+    builder.where("up.extension = :extension", extension: extension_filter)
+  end
+
   builder.query.each do |row|
     data = {}
     data[:author_id] = row.user_id
diff --git a/app/models/reports/topics.rb b/app/models/reports/topics.rb
index 851700f18a8..6994ae0f12b 100644
--- a/app/models/reports/topics.rb
+++ b/app/models/reports/topics.rb
@@ -1,7 +1,12 @@
-Report.add_report("topics") do |report|
-  report.category_filtering = true
-  basic_report_about report, Topic, :listable_count_per_day, report.start_date, report.end_date, report.category_id
+Report.add_report('topics') do |report|
+  category_filter = report.filters.dig(:category)
+  report.add_filter('category', default: category_filter)
+
+  basic_report_about report, Topic, :listable_count_per_day, report.start_date, report.end_date, category_filter
+
   countable = Topic.listable_topics
-  countable = countable.in_category_and_subcategories(report.category_id) if report.category_id
+  if category_filter
+    countable = countable.in_category_and_subcategories(category_filter)
+  end
   add_counts report, countable, 'topics.created_at'
 end
diff --git a/app/models/reports/topics_with_no_response.rb b/app/models/reports/topics_with_no_response.rb
index 2b1d434db83..123da140b0e 100644
--- a/app/models/reports/topics_with_no_response.rb
+++ b/app/models/reports/topics_with_no_response.rb
@@ -1,9 +1,13 @@
-Report.add_report("topics_with_no_response") do |report|
-  report.category_filtering = true
+Report.add_report('topics_with_no_response') do |report|
+  category_filter = report.filters.dig(:category)
+  report.add_filter('category', default: category_filter)
+
   report.data = []
-  Topic.with_no_response_per_day(report.start_date, report.end_date, report.category_id).each do |r|
-    report.data << { x: r["date"], y: r["count"].to_i }
+  Topic.with_no_response_per_day(report.start_date, report.end_date, category_filter).each do |r|
+    report.data << { x: r['date'], y: r['count'].to_i }
   end
-  report.total = Topic.with_no_response_total(category_id: report.category_id)
-  report.prev30Days = Topic.with_no_response_total(start_date: report.start_date - 30.days, end_date: report.start_date, category_id: report.category_id)
+
+  report.total = Topic.with_no_response_total(category_id: category_filter)
+
+  report.prev30Days = Topic.with_no_response_total(start_date: report.start_date - 30.days, end_date: report.start_date, category_id: category_filter)
 end
diff --git a/app/models/reports/visits.rb b/app/models/reports/visits.rb
index 4d95537c194..9e38b032b25 100644
--- a/app/models/reports/visits.rb
+++ b/app/models/reports/visits.rb
@@ -1,9 +1,11 @@
-Report.add_report("visits") do |report|
-  report.group_filtering = true
+Report.add_report('visits') do |report|
+  group_filter = report.filters.dig(:group)
+  report.add_filter('group', default: group_filter)
+
   report.icon = 'user'
 
-  basic_report_about report, UserVisit, :by_day, report.start_date, report.end_date, report.group_id
+  basic_report_about report, UserVisit, :by_day, report.start_date, report.end_date, group_filter
   add_counts report, UserVisit, 'visited_at'
 
-  report.prev30Days = UserVisit.where("visited_at >= ? and visited_at < ?", report.start_date - 30.days, report.start_date).count
+  report.prev30Days = UserVisit.where('visited_at >= ? and visited_at < ?', report.start_date - 30.days, report.start_date).count
 end
diff --git a/config/locales/client.en.yml b/config/locales/client.en.yml
index 859b845e850..6d217d85c46 100644
--- a/config/locales/client.en.yml
+++ b/config/locales/client.en.yml
@@ -3110,6 +3110,13 @@ en:
           trending_search:
             more: '<a href="%{basePath}/admin/logs/search_logs">Search logs</a>'
             disabled: 'Trending search report is disabled. Enable <a href="%{basePath}/admin/site_settings/category/all_results?filter=log%20search%20queries">log search queries</a> to collect data.'
+          filters:
+            file-extension:
+              label: File extension
+            group:
+              label: Group
+            category:
+              label: Category
 
       commits:
         latest_changes: "Latest changes: please update often!"
diff --git a/spec/models/report_spec.rb b/spec/models/report_spec.rb
index 4efcbead189..6843ac9af55 100644
--- a/spec/models/report_spec.rb
+++ b/spec/models/report_spec.rb
@@ -20,7 +20,6 @@ describe Report do
   end
 
   shared_examples 'category filtering on subcategories' do
-
     it 'returns the filtered data' do
       expect(report.total).to eq(1)
     end
@@ -753,12 +752,12 @@ describe Report do
       end
 
       context "with category filtering" do
-        let(:report) { Report.find('flags', category_id: c1.id) }
+        let(:report) { Report.find('flags', filters: { category: c1.id }) }
 
         include_examples 'category filtering'
 
         context "on subcategories" do
-          let(:report) { Report.find('flags', category_id: c0.id) }
+          let(:report) { Report.find('flags', filters: { category: c0.id }) }
 
           include_examples 'category filtering on subcategories'
         end
@@ -782,12 +781,12 @@ describe Report do
       end
 
       context "with category filtering" do
-        let(:report) { Report.find('topics', category_id: c1.id) }
+        let(:report) { Report.find('topics', filters: { category: c1.id }) }
 
         include_examples 'category filtering'
 
         context "on subcategories" do
-          let(:report) { Report.find('topics', category_id: c0.id) }
+          let(:report) { Report.find('topics', filters: { category: c0.id }) }
 
           include_examples 'category filtering on subcategories'
         end
@@ -872,12 +871,12 @@ describe Report do
       end
 
       context "with category filtering" do
-        let(:report) { Report.find('posts', category_id: c1.id) }
+        let(:report) { Report.find('posts', filters: { category: c1.id }) }
 
         include_examples 'category filtering'
 
         context "on subcategories" do
-          let(:report) { Report.find('posts', category_id: c0.id) }
+          let(:report) { Report.find('posts', filters: { category: c0.id }) }
 
           include_examples 'category filtering on subcategories'
         end
@@ -903,12 +902,12 @@ describe Report do
       end
 
       context "with category filtering" do
-        let(:report) { Report.find('topics_with_no_response', category_id: c1.id) }
+        let(:report) { Report.find('topics_with_no_response', filters: { category: c1.id }) }
 
         include_examples 'category filtering'
 
         context "on subcategories" do
-          let(:report) { Report.find('topics_with_no_response', category_id: c0.id) }
+          let(:report) { Report.find('topics_with_no_response', filters: { category: c0.id }) }
 
           include_examples 'category filtering on subcategories'
         end
@@ -939,12 +938,12 @@ describe Report do
       end
 
       context "with category filtering" do
-        let(:report) { Report.find('likes', category_id: c1.id) }
+        let(:report) { Report.find('likes', filters: { category: c1.id }) }
 
         include_examples 'category filtering'
 
         context "on subcategories" do
-          let(:report) { Report.find('likes', category_id: c0.id) }
+          let(:report) { Report.find('likes', filters: { category: c0.id }) }
 
           include_examples 'category filtering on subcategories'
         end
diff --git a/test/javascripts/acceptance/dashboard-test.js.es6 b/test/javascripts/acceptance/dashboard-test.js.es6
index 3a9f7011746..1a7675dac9a 100644
--- a/test/javascripts/acceptance/dashboard-test.js.es6
+++ b/test/javascripts/acceptance/dashboard-test.js.es6
@@ -4,6 +4,18 @@ acceptance("Dashboard", {
   loggedIn: true,
   settings: {
     dashboard_general_tab_activity_metrics: "page_view_total_reqs"
+  },
+  site: {
+    groups: [
+      {
+        id: 88,
+        name: "tl1"
+      },
+      {
+        id: 89,
+        name: "tl2"
+      }
+    ]
   }
 });
 
@@ -86,3 +98,17 @@ QUnit.test("reports tab", async assert => {
     "filter is case insensitive"
   );
 });
+
+QUnit.test("report filters", async assert => {
+  await visit(
+    '/admin/reports/signups?end_date=2018-07-16&filters=%7B"group"%3A88%7D&start_date=2018-06-16'
+  );
+
+  const groupFilter = selectKit(".group-filter .combo-box");
+
+  assert.equal(
+    groupFilter.header().value(),
+    88,
+    "its set the value of the filter from the query params"
+  );
+});
diff --git a/test/javascripts/fixtures/reports_bulk.js.es6 b/test/javascripts/fixtures/reports_bulk.js.es6
index 2e581278e0f..d12eb9377ab 100644
--- a/test/javascripts/fixtures/reports_bulk.js.es6
+++ b/test/javascripts/fixtures/reports_bulk.js.es6
@@ -57,21 +57,20 @@ let signups = {
   ],
   prev_start_date: "2018-05-17T00:00:00Z",
   prev_end_date: "2018-06-17T00:00:00Z",
-  category_id: null,
-  group_id: null,
   prev30Days: null,
   dates_filtering: true,
-  report_key: "reports:signups::20180616:20180716::[:prev_period]:",
+  report_key:
+    'reports:signups:20180616:20180716:[:prev_period]:50:{"group":"88"}:4',
+  available_filters: [
+    { id: "group", allow_any: false, choices: [], default: "88" }
+  ],
   labels: [
     { type: "date", properties: ["x"], title: "Day" },
     { type: "number", properties: ["y"], title: "Count" }
   ],
-  processing: false,
   average: false,
   percent: false,
   higher_is_better: true,
-  category_filtering: false,
-  group_filtering: true,
   modes: ["table", "chart"],
   prev_period: 961
 };
@@ -158,8 +157,6 @@ const page_view_total_reqs = {
   prev_data: null,
   prev_start_date: "2018-06-20T00:00:00Z",
   prev_end_date: "2018-07-23T00:00:00Z",
-  category_id: null,
-  group_id: null,
   prev30Days: 58110,
   dates_filtering: true,
   report_key: `reports:page_view_total_reqs:${startDate.format(
@@ -169,12 +166,9 @@ const page_view_total_reqs = {
     { type: "date", property: "x", title: "Day" },
     { type: "number", property: "y", title: "Count" }
   ],
-  processing: false,
   average: false,
   percent: false,
   higher_is_better: true,
-  category_filtering: false,
-  group_filtering: false,
   modes: ["table", "chart"],
   icon: "file",
   total: 921672