I already filed and received my refund. Can I still contribute to an IRA for 2017? Will I need to amend my return? Any risk in doing so?

[Marketstar · Accepted solution]

To supplement Sweetie Jean's answer, you may be able to increase your refund (or decrease taxes owed) by purchasing a Traditional IRA.

Although the Roth IRA is not tax deductible as is the Traditional IRA, both may qualify you for the Saver's Credit, which may also increase your refund.

See What Is the Saver's Credit?

[SweetieJean]

Good reminder!

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Risks: you may not be qualified for a deduction.
go through the motions (i.e. amend)  in the tax program before contributing to verify that you will get a full deduction for it.

[SweetieJean]

Assuming you qualify, you can still contribute to a 2017 IRA by April 17, 2018. And yes, you have to amend to claim the deduction.