TaxAct does not support e-filing of superseded returns; they must be paper-filed. To file a superseded return, modify the return and mail it to the address in the filing instructions. The IRS will treat it as superseded if it receives it within the original deadline (including extensions).
Amended returns can be e-filed through TaxAct, following IRS rules.
The primary difference between a superseded return and an amended return is when the corrected return is filed.
A superseded return is a revised tax return filed before the original return's due date (including extensions).
An amended return is a corrected tax return filed after the original due date (including extensions).
See the IRS Amended and Superseding Corporate Returns webpage for more information.
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