I am trying to pay for my state tax return and the address I am entering does not seem to register in your system. It is the same address as last year.

[DoninGA]

Is your tax return mailing address the same as the credit card billing address?  If not, go back to My Info and change the mailing address for your tax return to the billing address of your credit card.  Then go back to File and pay the TurboTax account fees with the credit card.  Once the fees are paid return to My Info and change the mailing address back to the original address you used.

[Critter]

If you are trying to pay the TT fees then the billing address on the Credit Card and what is on the return must match.... click on MY INFO to verify the address is the same.