How to Fix Claude Payment Processing Stuck Issues

Why Your Claude Payment Gets Stuck

When trying to upgrade to Claude Pro, you may experience an issue where the payment processing screen freezes, displays an infinite loading spinner, or loops back to the subscription page without confirming your purchase.

Because Anthropic uses Stripe to handle payment processing, these freezes are typically caused by browser extensions blocking Stripe's verification scripts, incomplete 3D Secure (3DS) authentication, or corrupt local storage. Below are the steps to troubleshoot and resolve a stuck payment processing screen.

Step-by-Step Fixes for Checkout Failures

1. Disable Ad-Blockers and Shield Settings Stripe relies on background scripts to run fraud-detection and card-verification checks. Privacy-focused browser extensions and built-in shields often identify these scripts as trackers and block them, preventing the checkout modal from completing its process.

1. Locate your ad-blocker icon (such as uBlock Origin, AdBlock Plus, or Ghostery) in your browser toolbar.
2. Click the icon and select "Pause" or "Disable for this site."
3. If you are using Brave, click the lion icon in the address bar and toggle Shields to "Down."
4. If using Safari on macOS, go to Settings > Websites > Content Blockers and disable them for claude.ai.
5. Refresh the page and attempt the subscription process again.

2. Complete 3D Secure (3DS) Verification Many European, UK, and international banks require Multi-Factor Authentication (MFA) via 3D Secure before authorizing subscription charges. This often triggers a pop-up window or a redirect from your bank. If your browser blocks pop-ups, the payment will hang indefinitely.

1. Look at your browser’s address bar. If a pop-up was blocked, you will see an icon showing a window with a red 'x'.
2. Click the icon and select Always allow pop-ups and redirects from claude.ai.
3. Check your mobile banking app. Some banks require you to manually open their app to approve the pending Stripe transaction within a 5-minute window while the Claude checkout screen is active.

3. Clear Browser Partition Cache or Use Incognito Cached data from previous, failed payment attempts can interfere with current checkout sessions, causing Stripe to refer to expired payment tokens.

1. Open a new private or incognito window in your browser.
2. Navigate directly to claude.ai and sign in.
3. Try initiating the upgrade to Claude Pro.
4. If this works, clear your primary browser's cache. In Chrome or Edge, press Ctrl + Shift + Delete (Windows) or Cmd + Shift + Delete (Mac), select Cached images and files and Cookies, and click Clear data.

4. Verify Cross-Site Tracking and Cookie Settings Stripe requires third-party cookies to verify your identity across the payment gateway and Anthropic’s application platform. If third-party cookies are completely blocked, the checkout process will fail to sync.

1. In Chrome, go to Settings > Privacy and security > Third-party cookies.
2. Ensure that Allow third-party cookies is checked, or add [*.]stripe.com and [*.]claude.ai to the allowed sites list.
3. In Safari, go to Settings > Privacy and temporarily uncheck Prevent cross-site tracking.
4. Re-run the upgrade process.

5. Swap to a Compatible Network Corporate VPNs, firewalls, and custom DNS configurations can block the outbound connections Stripe uses to communicate with bank verification servers.

1. If you are connected to a VPN, disconnect it temporarily.
2. If you are on a restricted corporate network, switch your device to a mobile hotspot or home Wi-Fi network.
3. Attempt to complete the billing flow again.

When to Escalate

If you have tried all the steps above and your bank statement shows a "pending" charge but your account remains on the Free tier, do not attempt to pay multiple times.

Gather your billing email, the date of the attempt, and the last four digits of the card used. Use the Support button in the bottom-right corner of the Claude app interface or email support@anthropic.com with the subject line "Stuck Payment Upgrade Failure" to request a manual account status correction or a refund of duplicate pending holds.