At ready to file. "How would you like to pay for turbo tax", i click pay with federal refund, it excepts but then takes be back to to the same start button and wont go.

Try this to see if it will allow you to continue filing.  

• log completely out of Turbo Tax. 
• Then, clear your cache and cookies within your browser and completely close out of it.  I have included the Help Articles below if you need assistance with clearing cache or cookies. 
• Re-open the browser and log back into Turbo Tax and see if this fixes the situation.  You can also try a different browser as well or "incognito mode".  

If none of the above steps resolve the issue, please reach back out here in the thread and someone will follow up with the next steps. 

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