If you are asking about paying your TurboTax fees out of your tax refund, see the article linked below to see if you are eligible and the directions for how to do it. Your refund has to be large enough to cover the product fees, any sales tax, plus the extra $40 service fee for that payment method ($45 for California filers.)
FAQ: Can I pay with my refund?
https://ttlc.intuit.com/turbotax-support/en-us/help-article/intuit-product-orders/refund-processing-...