diff --git a/packages/experiment-tag/src/experiment.ts b/packages/experiment-tag/src/experiment.ts
index de212aba..1d519863 100644
--- a/packages/experiment-tag/src/experiment.ts
+++ b/packages/experiment-tag/src/experiment.ts
@@ -24,6 +24,13 @@ import {
   ConsentAwareStorage,
 } from './storage/consent-aware-storage';
 import {
+  getExperimentStorageKey,
+  getPreviewModeSessionKey,
+  getRedirectStorageKey,
+  getVisualEditorSessionKey,
+} from './storage/keys';
+import {
+  deletePersistedData,
   getAndParseStorageItem,
   setAndStringifyStorageItem,
 } from './storage/storage';
@@ -46,7 +53,7 @@ import {
 } from './types';
 import { applyAntiFlickerCss } from './util/anti-flicker';
 import { getInjectUtils } from './util/inject-utils';
-import { VISUAL_EDITOR_SESSION_KEY, WindowMessenger } from './util/messenger';
+import { WindowMessenger } from './util/messenger';
 import { patchRemoveChild } from './util/patch';
 import {
   getUrlParams,
@@ -62,7 +69,6 @@ const MUTATE_ACTION = 'mutate';
 export const INJECT_ACTION = 'inject';
 const REDIRECT_ACTION = 'redirect';
 export const PREVIEW_MODE_PARAM = 'PREVIEW';
-export const PREVIEW_MODE_SESSION_KEY = 'amp-preview-mode';
 const VISUAL_EDITOR_PARAM = 'VISUAL_EDITOR';
 
 safeGlobal.Experiment = FeatureExperiment;
@@ -200,7 +206,7 @@ export class DefaultWebExperimentClient implements WebExperimentClient {
     const urlParams = getUrlParams();
     this.isVisualEditorMode =
       urlParams[VISUAL_EDITOR_PARAM] === 'true' ||
-      this.storage.getItem('sessionStorage', VISUAL_EDITOR_SESSION_KEY) !==
+      this.storage.getItem('sessionStorage', getVisualEditorSessionKey()) !==
         null;
     this.subscriptionManager = new SubscriptionManager(
       this,
@@ -234,7 +240,7 @@ export class DefaultWebExperimentClient implements WebExperimentClient {
     // fire url_change upon landing on page, set updateActivePagesOnly to not trigger variant actions
     this.messageBus.publish('url_change', { updateActivePages: true });
 
-    const experimentStorageName = `EXP_${this.apiKey.slice(0, 10)}`;
+    const experimentStorageName = getExperimentStorageKey(this.apiKey);
     const user =
       this.storage.getItem<WebExperimentUser>(
         'localStorage',
@@ -554,6 +560,9 @@ export class DefaultWebExperimentClient implements WebExperimentClient {
   public setConsentStatus(consentStatus: ConsentStatus) {
     this.consentOptions.status = consentStatus;
     this.storage.setConsentStatus(consentStatus);
+    if (consentStatus === ConsentStatus.REJECTED) {
+      deletePersistedData(this.apiKey, this.config);
+    }
     this.consentAwareExposureHandler.setConsentStatus(consentStatus);
   }
 
@@ -829,7 +838,7 @@ export class DefaultWebExperimentClient implements WebExperimentClient {
     variant: Variant,
     redirectUrl: string,
   ) {
-    const redirectStorageKey = `EXP_${this.apiKey.slice(0, 10)}_REDIRECT`;
+    const redirectStorageKey = getRedirectStorageKey(this.apiKey);
     // Store the current flag and variant for exposure tracking after redirect
     const storedRedirects =
       this.storage.getItem('sessionStorage', redirectStorageKey) || {};
@@ -839,7 +848,7 @@ export class DefaultWebExperimentClient implements WebExperimentClient {
 
   private fireStoredRedirectImpressions() {
     // Check for stored redirects and process them
-    const redirectStorageKey = `EXP_${this.apiKey.slice(0, 10)}_REDIRECT`;
+    const redirectStorageKey = getRedirectStorageKey(this.apiKey);
     const storedRedirects =
       this.storage.getItem('sessionStorage', redirectStorageKey) || {};
 
@@ -892,7 +901,7 @@ export class DefaultWebExperimentClient implements WebExperimentClient {
 
       setAndStringifyStorageItem<PreviewState>(
         'sessionStorage',
-        PREVIEW_MODE_SESSION_KEY,
+        getPreviewModeSessionKey(),
         {
           previewFlags: this.previewFlags,
         },
@@ -914,7 +923,7 @@ export class DefaultWebExperimentClient implements WebExperimentClient {
     } else {
       const previewState = getAndParseStorageItem<PreviewState>(
         'sessionStorage',
-        PREVIEW_MODE_SESSION_KEY,
+        getPreviewModeSessionKey(),
       );
       if (previewState) {
         this.previewFlags = previewState.previewFlags;
diff --git a/packages/experiment-tag/src/index.ts b/packages/experiment-tag/src/index.ts
index 12d49ea0..d9ff1c81 100644
--- a/packages/experiment-tag/src/index.ts
+++ b/packages/experiment-tag/src/index.ts
@@ -3,6 +3,7 @@ import { getGlobalScope } from '@amplitude/experiment-core';
 import { DefaultWebExperimentClient } from './experiment';
 import { HttpClient } from './preview/http';
 import { SdkPreviewApi } from './preview/preview-api';
+import { deletePersistedData } from './storage/storage';
 import { ConsentStatus, WebExperimentConfig } from './types';
 import { applyAntiFlickerCss } from './util/anti-flicker';
 import { isPreviewMode } from './util/url';
@@ -17,6 +18,7 @@ export const initialize = (
     getGlobalScope()?.experimentConfig?.consentOptions?.status ===
     ConsentStatus.REJECTED
   ) {
+    deletePersistedData(apiKey, config);
     return;
   }
   const shouldFetchConfigs =
diff --git a/packages/experiment-tag/src/storage/keys.ts b/packages/experiment-tag/src/storage/keys.ts
new file mode 100644
index 00000000..a5971aad
--- /dev/null
+++ b/packages/experiment-tag/src/storage/keys.ts
@@ -0,0 +1,27 @@
+import { WebExperimentConfig } from '../types';
+
+export const getExperimentStorageKey = (apiKey: string): string => {
+  return `EXP_${apiKey.slice(0, 10)}`;
+};
+
+export const getDefaultUserProviderStorageKey = (apiKey: string): string => {
+  return `EXP_${apiKey.slice(0, 10)}_DEFAULT_USER_PROVIDER`;
+};
+
+export const getUnsentEventsStorageKey = (
+  config: WebExperimentConfig,
+): string => {
+  return `EXP_unsent_${config.instanceName ?? 'default_instance'}`;
+};
+
+export const getRedirectStorageKey = (apiKey: string): string => {
+  return `EXP_${apiKey.slice(0, 10)}_REDIRECT`;
+};
+
+export const getPreviewModeSessionKey = (): string => {
+  return 'amp-preview-mode';
+};
+
+export const getVisualEditorSessionKey = (): string => {
+  return 'visual-editor-state';
+};
diff --git a/packages/experiment-tag/src/storage/storage.ts b/packages/experiment-tag/src/storage/storage.ts
index e18948a7..ce5b13d1 100644
--- a/packages/experiment-tag/src/storage/storage.ts
+++ b/packages/experiment-tag/src/storage/storage.ts
@@ -1,5 +1,13 @@
 import { getGlobalScope } from '@amplitude/experiment-core';
 
+import { WebExperimentConfig } from '../types';
+
+import {
+  getDefaultUserProviderStorageKey,
+  getExperimentStorageKey,
+  getUnsentEventsStorageKey,
+} from './keys';
+
 export type StorageType = 'localStorage' | 'sessionStorage';
 
 /**
@@ -77,3 +85,17 @@ const getStorage = (storageType: StorageType): Storage | null => {
   }
   return globalScope[storageType];
 };
+
+export const deletePersistedData = (
+  apiKey: string,
+  config: WebExperimentConfig,
+): void => {
+  const experimentStorageKey = getExperimentStorageKey(apiKey);
+  const defaultUserProviderStorageKey =
+    getDefaultUserProviderStorageKey(apiKey);
+  const unsentEventsStorageKey = getUnsentEventsStorageKey(config);
+  removeStorageItem('localStorage', experimentStorageKey);
+  removeStorageItem('localStorage', defaultUserProviderStorageKey);
+  removeStorageItem('sessionStorage', defaultUserProviderStorageKey);
+  removeStorageItem('localStorage', unsentEventsStorageKey);
+};
diff --git a/packages/experiment-tag/src/util/messenger.ts b/packages/experiment-tag/src/util/messenger.ts
index 8e754a51..ad965659 100644
--- a/packages/experiment-tag/src/util/messenger.ts
+++ b/packages/experiment-tag/src/util/messenger.ts
@@ -1,5 +1,6 @@
 import { getGlobalScope } from '@amplitude/experiment-core';
 
+import { getVisualEditorSessionKey } from '../storage/keys';
 import { getAndParseStorageItem } from '../storage/storage';
 
 interface VisualEditorSession {
@@ -7,8 +8,6 @@ interface VisualEditorSession {
   amplitudeWindowUrl: string;
 }
 
-export const VISUAL_EDITOR_SESSION_KEY = 'visual-editor-state';
-
 export class WindowMessenger {
   static setup() {
     let state: 'closed' | 'opening' | 'open' = 'closed';
@@ -75,9 +74,8 @@ export class WindowMessenger {
   private static getStoredSession(): VisualEditorSession | null {
     const sessionData = getAndParseStorageItem<VisualEditorSession>(
       'sessionStorage',
-      VISUAL_EDITOR_SESSION_KEY,
-    ) as VisualEditorSession;
-
+      getVisualEditorSessionKey(),
+    );
     if (!sessionData) {
       return null;
     }
diff --git a/packages/experiment-tag/src/util/url.ts b/packages/experiment-tag/src/util/url.ts
index 5d5bd66b..1c1b3656 100644
--- a/packages/experiment-tag/src/util/url.ts
+++ b/packages/experiment-tag/src/util/url.ts
@@ -1,6 +1,7 @@
 import { getGlobalScope } from '@amplitude/experiment-core';
 
-import { PREVIEW_MODE_PARAM, PREVIEW_MODE_SESSION_KEY } from '../experiment';
+import { PREVIEW_MODE_PARAM } from '../experiment';
+import { getPreviewModeSessionKey } from '../storage/keys';
 import { getAndParseStorageItem } from '../storage/storage';
 import { PreviewState } from '../types';
 
@@ -90,7 +91,7 @@ export const isPreviewMode = (): boolean => {
   }
   const previewState = getAndParseStorageItem<PreviewState>(
     'sessionStorage',
-    PREVIEW_MODE_SESSION_KEY,
+    getPreviewModeSessionKey(),
   );
   if (!previewState) {
     return false;