Last day for sep ira contribution

[kevin_ny_2003]

what is the last day from employer contribution for FY 2016?

Thanks

[TaxGuyBill]

By the due date of the return, including extensions.

So if this is a sole proprietorship and you file an extension, October 16th, 2017.

[dmertz]

This is apparently for an S corp.  See Kevin_K's other questions.

The deadline for a calendar-year the S corp to make the contribution is March 15, 2017 unless the S corp receives a filing extension.  If the S corp receives a 6-month filing extension, the deadline is September 15, 2017.

[kevin_ny_2003]

Does the account need to be opened (not funded ) before dec 31 2016?

[dmertz]

No.  From IRS Pub 560:

Deadline for setting up a SEP.  You can set up a SEP for any year as late as the due date (including extensions) of your income tax return for that year.