diff --git a/src/app/accessibility/accessibility-settings.service.spec.ts b/src/app/accessibility/accessibility-settings.service.spec.ts
index 2132ff090e..8a72f2d433 100644
--- a/src/app/accessibility/accessibility-settings.service.spec.ts
+++ b/src/app/accessibility/accessibility-settings.service.spec.ts
@@ -18,7 +18,7 @@ import {
   ACCESSIBILITY_COOKIE,
   ACCESSIBILITY_SETTINGS_METADATA_KEY,
   AccessibilitySettings,
-  AccessibilitySettingsService,
+  AccessibilitySettingsService, AccessibilitySettingsFormValues, FullAccessibilitySettings,
 } from './accessibility-settings.service';
 
 
@@ -363,4 +363,27 @@ describe('accessibilitySettingsService', () => {
     });
   });
 
+  describe('convertFormValuesToStoredValues', () => {
+    it('should reset the notificationTimeOut when timeOut is enabled but set to "0"', () => {
+      const formValues: AccessibilitySettingsFormValues = {
+        notificationTimeOutEnabled: true,
+        notificationTimeOut: '0',
+        liveRegionTimeOut: null,
+      };
+
+      const storedValues: FullAccessibilitySettings = service.convertFormValuesToStoredValues(formValues);
+      expect('notificationTimeOut' in storedValues).toBeFalse();
+    });
+  });
+
+  it('should keep the notificationTimeOut when timeOut is enabled and differs from "0"', () => {
+    const formValues: AccessibilitySettingsFormValues = {
+      notificationTimeOutEnabled: true,
+      notificationTimeOut: '3',
+      liveRegionTimeOut: null,
+    };
+
+    const storedValues: FullAccessibilitySettings = service.convertFormValuesToStoredValues(formValues);
+    expect('notificationTimeOut' in storedValues).toBeTrue();
+  });
 });
diff --git a/src/app/accessibility/accessibility-settings.service.ts b/src/app/accessibility/accessibility-settings.service.ts
index 808c5ea2b2..3133e216f8 100644
--- a/src/app/accessibility/accessibility-settings.service.ts
+++ b/src/app/accessibility/accessibility-settings.service.ts
@@ -260,11 +260,20 @@ export class AccessibilitySettingsService {
    * Convert values in the provided accessibility settings object to values ready to be stored.
    */
   convertFormValuesToStoredValues(settings: AccessibilitySettingsFormValues): FullAccessibilitySettings {
-    return {
+    const storedValues = {
       notificationTimeOut: settings.notificationTimeOutEnabled ?
         secondsToMilliseconds(settings.notificationTimeOut) : '0',
       liveRegionTimeOut: secondsToMilliseconds(settings.liveRegionTimeOut),
     };
+
+    // When the user enables the timeout but does not change the timeout duration from 0,
+    // it is removed from the values to be stored so the default value is used.
+    // Keeping it at 0 would mean the notifications are not automatically removed.
+    if (settings.notificationTimeOutEnabled && settings.notificationTimeOut === '0') {
+      delete storedValues.notificationTimeOut;
+    }
+
+    return storedValues;
   }
 
   /**