I do not believe I signed my 1040, but mailed it. I don't know what to do. Should I ignore and wait to hear for IRS or should I send amended return and add signature?

[Lindas0248]

No other information will be changed to the amendment if this is the correct approach.

[DoninGA]

When the IRS agent opens the mailed tax return and the tax return is not signed, the IRS will mail the tax return back to you requesting a signature.