Filed taxes and paid - forgot to sign return

The IRS will process your payment, even if you didn't sign the return.

 

There would have been a payment voucher with your mailed return - that voucher is important in ensuring the payment is properly credited to your tax account.

 

Check with your bank to see when the payment clears and keep a copy of the cancelled check. 

 

 

 

if you cancel your payment and pay after may 17, you will be paying late.