diff --git a/src-ui/src/app/components/common/filterable-dropdown/filterable-dropdown.component.html b/src-ui/src/app/components/common/filterable-dropdown/filterable-dropdown.component.html
index fc74eb4e9..db87e801c 100644
--- a/src-ui/src/app/components/common/filterable-dropdown/filterable-dropdown.component.html
+++ b/src-ui/src/app/components/common/filterable-dropdown/filterable-dropdown.component.html
@@ -19,7 +19,7 @@
       </div>
       <div *ngIf="selectionModel.items" class="items">
         <ng-container *ngFor="let item of selectionModel.itemsSorted | filter: filterText">
-          <app-toggleable-dropdown-button *ngIf="allowSelectNone || item.id" [item]="item" [state]="selectionModel.get(item.id)" (toggle)="selectionModel.toggle(item.id)"></app-toggleable-dropdown-button>
+          <app-toggleable-dropdown-button *ngIf="allowSelectNone || item.id" [item]="item" [state]="selectionModel.get(item.id)" (toggle)="selectionModel.toggle(item.id)" (exclude)="selectionModel.exclude(item.id)"></app-toggleable-dropdown-button>
         </ng-container>
       </div>
       <button *ngIf="editing" class="list-group-item list-group-item-action bg-light" (click)="applyClicked()" [disabled]="!selectionModel.isDirty()">
diff --git a/src-ui/src/app/components/common/filterable-dropdown/filterable-dropdown.component.ts b/src-ui/src/app/components/common/filterable-dropdown/filterable-dropdown.component.ts
index 3481b1227..c91643de7 100644
--- a/src-ui/src/app/components/common/filterable-dropdown/filterable-dropdown.component.ts
+++ b/src-ui/src/app/components/common/filterable-dropdown/filterable-dropdown.component.ts
@@ -43,6 +43,10 @@ export class FilterableDropdownSelectionModel {
     return this.items.filter(i => this.temporarySelectionStates.get(i.id) == ToggleableItemState.Selected)
   }
 
+  getExcludedItems() {
+    return this.items.filter(i => this.temporarySelectionStates.get(i.id) == ToggleableItemState.Excluded)
+  }
+
   set(id: number, state: ToggleableItemState, fireEvent = true) {
     if (state == ToggleableItemState.NotSelected) {
       this.temporarySelectionStates.delete(id)
@@ -56,9 +60,9 @@ export class FilterableDropdownSelectionModel {
 
   toggle(id: number, fireEvent = true) {
     let state = this.temporarySelectionStates.get(id)
-    if (state == null || state != ToggleableItemState.Selected) {
+    if (state == null || (state != ToggleableItemState.Selected && state != ToggleableItemState.Excluded)) {
       this.temporarySelectionStates.set(id, ToggleableItemState.Selected)
-    } else if (state == ToggleableItemState.Selected) {
+    } else if (state == ToggleableItemState.Selected || state == ToggleableItemState.Excluded) {
       this.temporarySelectionStates.delete(id)
     }
 
@@ -83,7 +87,30 @@ export class FilterableDropdownSelectionModel {
     if (fireEvent) {
       this.changed.next(this)
     }
-    
+
+  }
+
+  exclude(id: number, fireEvent:boolean = true) {
+    console.log('exclude', id, fireEvent);
+
+    let state = this.temporarySelectionStates.get(id)
+    if (state == null || state != ToggleableItemState.Excluded) {
+      this.temporarySelectionStates.set(id, ToggleableItemState.Excluded)
+    } else if (state == ToggleableItemState.Excluded) {
+      this.temporarySelectionStates.delete(id)
+    }
+
+    if (!this.multiple) {
+      for (let key of this.temporarySelectionStates.keys()) {
+        if (key != id) {
+          this.temporarySelectionStates.delete(key)
+        }
+      }
+    }
+
+    if (fireEvent) {
+      this.changed.next(this)
+    }
   }
 
   private getNonTemporary(id: number) {
diff --git a/src-ui/src/app/components/common/filterable-dropdown/toggleable-dropdown-button/toggleable-dropdown-button.component.html b/src-ui/src/app/components/common/filterable-dropdown/toggleable-dropdown-button/toggleable-dropdown-button.component.html
index 404ea9d4d..6994c2b74 100644
--- a/src-ui/src/app/components/common/filterable-dropdown/toggleable-dropdown-button/toggleable-dropdown-button.component.html
+++ b/src-ui/src/app/components/common/filterable-dropdown/toggleable-dropdown-button/toggleable-dropdown-button.component.html
@@ -1,4 +1,4 @@
-<button class="list-group-item list-group-item-action d-flex align-items-center p-2 border-top-0 border-left-0 border-right-0 border-bottom" role="menuitem" (click)="toggleItem()">
+<button class="list-group-item list-group-item-action d-flex align-items-center p-2 border-top-0 border-left-0 border-right-0 border-bottom" role="menuitem" (click)="toggleItem($event)">
   <div class="selected-icon mr-1">
     <ng-container *ngIf="isChecked()">
       <svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" fill="currentColor" class="bi bi-check" viewBox="0 0 16 16">
@@ -10,7 +10,11 @@
         <path d="M4 8a.5.5 0 0 1 .5-.5h7a.5.5 0 0 1 0 1h-7A.5.5 0 0 1 4 8z"/>
       </svg>
     </ng-container>
-    
+    <ng-container *ngIf="isExcluded()">
+      <svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" fill="currentColor" class="bi bi-x" viewBox="0 0 16 16">
+        <path d="M4.646 4.646a.5.5 0 0 1 .708 0L8 7.293l2.646-2.647a.5.5 0 0 1 .708.708L8.707 8l2.647 2.646a.5.5 0 0 1-.708.708L8 8.707l-2.646 2.647a.5.5 0 0 1-.708-.708L7.293 8 4.646 5.354a.5.5 0 0 1 0-.708z"/>
+      </svg>
+    </ng-container>
   </div>
   <div class="mr-1">
     <app-tag *ngIf="isTag; else displayName" [tag]="item" [clickable]="true" linkTitle="Filter by tag"></app-tag>
diff --git a/src-ui/src/app/components/common/filterable-dropdown/toggleable-dropdown-button/toggleable-dropdown-button.component.ts b/src-ui/src/app/components/common/filterable-dropdown/toggleable-dropdown-button/toggleable-dropdown-button.component.ts
index f082dfe67..cf84231b1 100644
--- a/src-ui/src/app/components/common/filterable-dropdown/toggleable-dropdown-button/toggleable-dropdown-button.component.ts
+++ b/src-ui/src/app/components/common/filterable-dropdown/toggleable-dropdown-button/toggleable-dropdown-button.component.ts
@@ -10,7 +10,8 @@ export interface ToggleableItem {
 export enum ToggleableItemState {
   NotSelected = 0,
   Selected = 1,
-  PartiallySelected = 2
+  PartiallySelected = 2,
+  Excluded = 3
 }
 
 @Component({
@@ -32,12 +33,19 @@ export class ToggleableDropdownButtonComponent {
   @Output()
   toggle = new EventEmitter()
 
+  @Output()
+  exclude = new EventEmitter()
+
   get isTag(): boolean {
     return 'is_inbox_tag' in this.item
   }
 
-  toggleItem(): void {
-    this.toggle.emit()
+  toggleItem(event: MouseEvent): void {
+    if (event.altKey) {
+      this.exclude.emit()
+    } else {
+      this.toggle.emit()
+    }
   }
 
   isChecked() {
@@ -48,4 +56,7 @@ export class ToggleableDropdownButtonComponent {
     return this.state == ToggleableItemState.PartiallySelected
   }
 
+  isExcluded() {
+    return this.state == ToggleableItemState.Excluded
+  }
 }
diff --git a/src-ui/src/app/components/document-list/filter-editor/filter-editor.component.ts b/src-ui/src/app/components/document-list/filter-editor/filter-editor.component.ts
index a9111bc9f..597e15c61 100644
--- a/src-ui/src/app/components/document-list/filter-editor/filter-editor.component.ts
+++ b/src-ui/src/app/components/document-list/filter-editor/filter-editor.component.ts
@@ -8,7 +8,7 @@ import { DocumentTypeService } from 'src/app/services/rest/document-type.service
 import { TagService } from 'src/app/services/rest/tag.service';
 import { CorrespondentService } from 'src/app/services/rest/correspondent.service';
 import { FilterRule } from 'src/app/data/filter-rule';
-import { FILTER_ADDED_AFTER, FILTER_ADDED_BEFORE, FILTER_CORRESPONDENT, FILTER_CREATED_AFTER, FILTER_CREATED_BEFORE, FILTER_DOCUMENT_TYPE, FILTER_HAS_ANY_TAG, FILTER_HAS_TAG, FILTER_TITLE } from 'src/app/data/filter-rule-type';
+import { FILTER_ADDED_AFTER, FILTER_ADDED_BEFORE, FILTER_CORRESPONDENT, FILTER_CREATED_AFTER, FILTER_CREATED_BEFORE, FILTER_DOCUMENT_TYPE, FILTER_HAS_ANY_TAG, FILTER_HAS_TAG, FILTER_DOES_NOT_HAVE_TAG, FILTER_TITLE } from 'src/app/data/filter-rule-type';
 import { FilterableDropdownSelectionModel } from '../../common/filterable-dropdown/filterable-dropdown.component';
 import { ToggleableItemState } from '../../common/filterable-dropdown/toggleable-dropdown-button/toggleable-dropdown-button.component';
 
@@ -107,6 +107,9 @@ export class FilterEditorComponent implements OnInit, OnDestroy {
         case FILTER_HAS_ANY_TAG:
           this.tagSelectionModel.set(null, ToggleableItemState.Selected, false)
           break
+        case FILTER_DOES_NOT_HAVE_TAG:
+          this.tagSelectionModel.set(rule.value ? +rule.value : null, ToggleableItemState.Excluded, false)
+          break
         case FILTER_CORRESPONDENT:
           this.correspondentSelectionModel.set(rule.value ? +rule.value : null, ToggleableItemState.Selected, false)
           break
@@ -128,6 +131,9 @@ export class FilterEditorComponent implements OnInit, OnDestroy {
       this.tagSelectionModel.getSelectedItems().filter(tag => tag.id).forEach(tag => {
         filterRules.push({rule_type: FILTER_HAS_TAG, value: tag.id?.toString()})
       })
+      this.tagSelectionModel.getExcludedItems().filter(tag => tag.id).forEach(tag => {
+        filterRules.push({rule_type: FILTER_DOES_NOT_HAVE_TAG, value: tag.id?.toString()})
+      })
     }
     this.correspondentSelectionModel.getSelectedItems().forEach(correspondent => {
       filterRules.push({rule_type: FILTER_CORRESPONDENT, value: correspondent.id?.toString()})