This is a general technical error that can pop up during the payment step in TurboTax Online. Here are a few things to try:
- Refresh the page and try again.
- Clear your browser's cache and cookies, then log back in to TurboTax and retry the payment.
- Try a different browser (Chrome, Firefox, Edge, or Safari) or switch to a private/incognito window.
- Check your billing address. If the address on your credit card doesn't match what's entered in TurboTax, the payment can fail. Make sure they match exactly.
- If you have a non-U.S. address anywhere in your return (such as a foreign address in the My Info section), try temporarily changing it to a U.S. address, complete the payment, and then update it back.
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