Get your taxes done using TurboTax

How did you make the payments?  Directly online at the IRS or send a check in the mail with the 1040ES slip?  If the payment never left your bank account then I guess you can't include it in your tax return.   Then if it ever goes though after you file they should send it back to you.

 

It wasn't for California was it?  CA skips the 3rd payment.