Too Late to Make Profit Sharing Contribution?

[Guest MS TPA]

If the Company tax return has already been filed but the extended deadline has not passed, is it too late for the Employer to make a Profit Sharing contribution and then amend the original return to take the deduction?

[Guest Sieve]

A deductible contribution can be made until the extended due date only if an extension has been received and some of it has been used (e.g., due 3/15, extended to 9/15, return filed on 4/1, deductible contribution can be made until 9/15). So, if the return was filed timely unextended, and the unextended due date has passed, the deduction is lost until next year.

An amended return cannot act as an extension if the taxpayer does not already have an extension