After you file

The payment methods are credit card, debit card, or a prepaid debit card you can buy in a store.   It must have the Visa, Mastercard, Discover, or American Express logo.   

See this FAQ:
<a rel="nofollow" target="_blank" href="https://ttlc.intuit.com/questions/1901301-what-forms-of-payment-does-turbotax-online-accept">https:/...>

As I mentioned in my answer below that pay out of refund option has a 39.99 (or 44.99) service fee.