Would credit and debit cards still work?

Yes. Your cards keep working, at the same stores, the same way, on day one. Card networks are global by design, they already run across every border on earth, and an independent Texas is just one more country on a system that already spans about two hundred of them.

Card networks are already worldwide

Visa, Mastercard, and the rest are global networks. The card in your wallet already works in Paris, Tokyo, and Mexico City, in countries that have never shared a government with the United States. That is the entire design of a card network: it connects banks and merchants across national borders, automatically. Independence does not knock Texas off that network. It simply means transactions in Texas route the way transactions in every other country already route. The technology does not know or care which flag flies over the terminal.

Your card is tied to your account, and your account stays put

A debit card pulls from your bank account; a credit card draws on a line from your issuer. As covered in the answer on bank accounts, those accounts stay open and stay yours through the transition. As long as the account behind the card keeps working, and it does, the card keeps working. Nothing about independence reaches in and cancels the link between your card and your account.

Keeping the dollar means no conversion at the register

The smoothest path, keeping the dollar in circulation through the transition, means there is no currency conversion when you tap your card at a Texas store. You pay dollars, the merchant receives dollars, and the transaction settles the way it does today. Even if Texas later introduced a currency of its own, cross-border card payments with built-in currency conversion are already a solved, everyday feature of the global networks. Travelers rely on it constantly. It is not a problem anyone would have to invent a solution for.

Texas banks already issue on these networks

The banks and credit unions that issue Texans’ cards are overwhelmingly the same institutions that will operate in an independent Texas, most of them already Texas-chartered. They are already members of the global card networks. Independence does not require them to rejoin anything or rebuild anything. They keep issuing cards on the same rails they use now.

And HB 1056 adds a new way to pay

There is even an additional option coming online. HB 1056 authorizes the Comptroller, starting May 1, 2027, to set up electronic systems so Texans can spend gold and silver held in the Texas Bullion Depository through a debit card or app, valued at the time of the sale. That is a new spending rail Texas can build on its own, on top of the card networks that already work everywhere.

The bottom line

Your credit and debit cards keep working in an independent Texas, because card networks are global by design and your accounts stay open. Keep the dollar and there is not even a conversion at checkout. The tap, swipe, and chip all work exactly as they do today.