After you file


@Leinarts wrote:

When i tried to e file it, it gave me a message saying that i already filed my tax return.  When i called turbotax the person told me it was because i sent my info to the irs in order to receive my stimulus check.
   As far as mailing a check goes, im not worrying about it being late i understand that they honor postmarking.  Im just worried about getting charged for $700 on some random day 6 months or more from  now when i may not be prepared for it.


You can pay the federal taxes owed on the IRS payment website - https://www.irs.gov/payments

Using TurboTax just select you will pay by mailing a check and then do not send the check.