Here are some of the reasons why you may be considered ineligible to pay with your refund:
From TurboTax - Can I pay with my refund?
To use this payment option:
- Your federal or state (if applicable) refund must be enough to cover your TurboTax fees.
- You must have a US address.
- You have to e-file.
- The name on the bank account needs to match the name on the tax return.
- You'll need to direct deposit your refund into a single account.
Otherwise, you can try troubleshooting with TurboTax Online.
Is there a different, or more specific error message that you're seeing?