You have until April 18th, 2017 to make 2016 IRA contributions for Roth and Traditional IRAs. If you’re self-employed and are using a SEP, your deadline is determined by your company’s tax filing deadline (e.g. s-corp, partnership, or sole prop). So, if you were an s-corp or partnership in 2016, then your filing deadline was March 15th, 2017. II you are a sole prop, then the deadline is April 18th, 2017. If you extended your company return, that extension will also apply to your SEP IRA contributions. The table below breaks down the deadlines and extension options for Traditional, Roth and SEP IRAs.
| Type of IRA | Contribution Type | Deadline Details |
| Traditional IRA | Traditional, Deductible | April 18th, 2017: Due Date for Individual Tax Return Filing (not including extensions). IRC § 219(f)(3); You can file your return claiming a contribution before the contribution is actually made. Rev. Rul. 84-18. |
| Roth IRA | Roth, Not Deductible | April 18th, 2017: Due Date for Individual Tax Return Filing (not including extensions). IRC § 408A(c)(7). |
| SEP IRAÂ | Employee, Deductible | N/A: Employee contributions cannot be made to a SEP IRA plan. |
| Employer Contribution, Deductible | March 15/April 15th: Due Date for Company Tax Return Filing (including extensions). IRC § 404(h)(1)(B). | |
As outlined above, you have until the 2016 individual tax return deadline of April 18th, 2017 to make 2016 Traditional and Roth IRA contributions. The deadline for Traditional and Roth IRAs, however, does not include extensions. So, even if you extend your 2016 tax return, your 2016 Traditional and Roth IRA contributions are still due on April 18th, 2017.
SEP IRA contribution deadlines are based on the company tax return deadline, which could be March 15th if the company is taxed as a corporation (“c” or “s”) or partnership, and April 15th if it is a sole proprietorship. Keep in mind that this deadline includes extensions, so if you extend your company tax return filing, you will extend the time period to make 2016 SEP IRA contributions.