diff --git a/apps/application-system/api/src/app/modules/application/application.controller.ts b/apps/application-system/api/src/app/modules/application/application.controller.ts
index d8d3180484aa..734796589e4a 100644
--- a/apps/application-system/api/src/app/modules/application/application.controller.ts
+++ b/apps/application-system/api/src/app/modules/application/application.controller.ts
@@ -1079,6 +1079,7 @@ export class ApplicationController {
   async delete(
     @Param('id', new ParseUUIDPipe()) id: string,
     @CurrentUser() user: User,
+    @CurrentLocale() locale: Locale,
   ) {
     const { nationalId } = user
     const existingApplication =
@@ -1097,6 +1098,53 @@ export class ApplicationController {
       )
     }
 
+    const template = await getApplicationTemplateByTypeId(
+      existingApplication.typeId,
+    )
+    if (template === null) {
+      throw new BadRequestException(
+        `No application template exists for type: ${existingApplication.typeId}`,
+      )
+    }
+
+    let onDeleteActions = new ApplicationTemplateHelper(
+      existingApplication,
+      template,
+    ).getOnDeleteStateAPIAction()
+    if (onDeleteActions) {
+      const namespaces = await getApplicationTranslationNamespaces(
+        existingApplication,
+      )
+      if (!Array.isArray(onDeleteActions)) {
+        onDeleteActions = [onDeleteActions]
+      }
+
+      const intl = await this.intlService.useIntl(namespaces, locale)
+      const deletingApplication = await this.templateApiActionRunner.run(
+        existingApplication,
+        onDeleteActions,
+        user,
+        locale,
+        intl.formatMessage,
+      )
+
+      for (const api of onDeleteActions) {
+        const result =
+          deletingApplication.externalData[api.externalDataId || api.action]
+
+        this.logger.debug(
+          `Performing action ${api.action} on ${JSON.stringify(
+            template.name,
+          )} ended with ${result.status}`,
+        )
+
+        if (result.status === 'failure' && api.throwOnError) {
+          const reason = result.reason ?? 'Unknown error'
+          throw new TemplateApiError(reason, 500)
+        }
+      }
+    }
+
     // delete charge in FJS
     await this.applicationChargeService.deleteCharge(existingApplication)
 
@@ -1111,5 +1159,12 @@ export class ApplicationController {
     )
 
     await this.applicationService.delete(existingApplication.id)
+
+    this.auditService.audit({
+      auth: user,
+      action: 'delete',
+      resources: existingApplication.id,
+      meta: { type: existingApplication.typeId },
+    })
   }
 }
diff --git a/libs/application/core/src/lib/ApplicationTemplateHelper.ts b/libs/application/core/src/lib/ApplicationTemplateHelper.ts
index f7d35edcd394..7af4692c2cfd 100644
--- a/libs/application/core/src/lib/ApplicationTemplateHelper.ts
+++ b/libs/application/core/src/lib/ApplicationTemplateHelper.ts
@@ -118,6 +118,15 @@ export class ApplicationTemplateHelper<
     return this.getTemplateAPIAction(action)
   }
 
+  getOnDeleteStateAPIAction(
+    stateKey: string = this.application.state,
+  ): TemplateApi | TemplateApi[] | null {
+    const action =
+      this.template.stateMachineConfig.states[stateKey]?.meta?.onDelete ?? null
+
+    return this.getTemplateAPIAction(action)
+  }
+
   getApplicationStateInformation(
     stateKey: string = this.application.state,
   ): ApplicationStateMeta<TEvents> | undefined {
diff --git a/libs/application/types/src/lib/StateMachine.ts b/libs/application/types/src/lib/StateMachine.ts
index cad79844abe8..8dd8c370cc7d 100644
--- a/libs/application/types/src/lib/StateMachine.ts
+++ b/libs/application/types/src/lib/StateMachine.ts
@@ -131,6 +131,7 @@ export interface ApplicationStateMeta<
   roles?: RoleInState<T>[]
   onExit?: TemplateApi<R>[] | TemplateApi<R>
   onEntry?: TemplateApi<R>[] | TemplateApi<R>
+  onDelete?: TemplateApi<R>[] | TemplateApi<R>
 }
 
 export interface ApplicationStateSchema<T extends EventObject = AnyEventObject>
diff --git a/libs/application/ui-components/src/components/ApplicationList/ApplicationList.tsx b/libs/application/ui-components/src/components/ApplicationList/ApplicationList.tsx
index 5a2c56984266..682899678b9a 100644
--- a/libs/application/ui-components/src/components/ApplicationList/ApplicationList.tsx
+++ b/libs/application/ui-components/src/components/ApplicationList/ApplicationList.tsx
@@ -1,5 +1,10 @@
 import React, { useCallback, useState } from 'react'
-import { Box, Pagination, Stack } from '@island.is/island-ui/core'
+import {
+  Box,
+  Pagination,
+  Stack,
+  ToastContainer,
+} from '@island.is/island-ui/core'
 import {
   Application,
   ApplicationTypes,
@@ -95,6 +100,7 @@ const ApplicationList = ({
           />
         </Box>
       ) : null}
+      <ToastContainer hideProgressBar closeButton useKeyframeStyles={false} />
     </>
   )
 }
diff --git a/libs/application/ui-components/src/hooks/useDeleteApplication.ts b/libs/application/ui-components/src/hooks/useDeleteApplication.ts
index a30fec5fcba8..6171c56ee2e7 100644
--- a/libs/application/ui-components/src/hooks/useDeleteApplication.ts
+++ b/libs/application/ui-components/src/hooks/useDeleteApplication.ts
@@ -1,13 +1,19 @@
 import { useMutation } from '@apollo/client'
 import { DELETE_APPLICATION } from '@island.is/application/graphql'
+import { handleServerError } from '../utilities/handleServerError'
+import { useLocale } from '@island.is/localization'
 
 export const useDeleteApplication = (refetch?: (() => void) | undefined) => {
+  const { formatMessage } = useLocale()
   const [deleteApplicationMutation, { error, loading }] = useMutation(
     DELETE_APPLICATION,
     {
       onCompleted: () => {
         refetch?.()
       },
+      onError: (error) => {
+        handleServerError(error, formatMessage)
+      },
     },
   )