I need to submit an injured spouse form. i already e-filed my taxes. Do I submit them now or wait till I receive the offset letter?

[doreenkuczma1959]

If I need to submit a form do I mail it or do it online?

[ddaven12]

You would need to file Form 8379 within 3 years from the due date of the original return (including extensions) or within 2 years from the date that you paid the tax that was later offset, whichever is later. 

Since you have already e-filed your tax return you would file the Form 8379 separately by mail, please be sure to attach a copy of all Forms W-2 and W-2G for both spouses, and any Forms 1099 showing federal income tax withholding, to Form 8379. 

The processing of the form may be delayed if these forms are not attached, if the form is incomplete when filed, or if you attach a copy of your joint tax return.

 Here is an IRS link to the Form 8379 filing instructions: https://www.irs.gov/pub/irs-pdf/i8379.pdf.

 Here is a link to the Form : https://www.irs.gov/pub/irs-pdf/f8379.pdf.

The following link will provide the mailing address to mail the form: https://www.irs.gov/uac/where-to-file-paper-tax-returns-with-or-without-a-payment.