After you file

I assume you mean your direct debit information for the IRS to debit your account for payment. 

 

You can use the voucher that TurboTax can print to mail a check to the IRS or download a blank voucher form from the IRS and complete it and mail it with a check: https://www.irs.gov/pub/irs-pdf/f1040v.pdf

 

Or you can use IRS direct pay to have the funds debited from your correct bank account: https://www.irs.gov/payments/direct-pay