<prompt> Human: Strange question, but is this possible? Would I have to amend my return with the updated information?For reference:Im expecting about 3k from statefederal returns and Ive only invested 1500 for 2015 in a roth IRA. Id like to put all 3k straight into it. How would I go about this?  <response>: If youre specifically talking about contributions to a Roth IRA, then you dont even need to amend anything. Contributions to a Roth IRA do not show up on your income tax returns. So it pretty much goes:1. File your taxes2. Get X tax return3. Contribute X to Roth IRA before April 15, and mark it as a contribution for the 2015 tax year4. Profit! 