Finalize Prior-Year Retirement Contributions

Even as the new year gets underway, there may still be opportunities to complete or adjust prior-year retirement contributions. Timing and limits vary by account type, so it’s important to understand which windows remain open.

Key Contribution Deadlines

IRA & Roth IRA

  • Contributions for the prior tax year can typically be made up until the tax filing deadline (generally April 15, excluding extensions).
  • This applies even if you have already filed your return, as long as the contribution is designated correctly.

SEP IRAs

  • Employer contributions can generally be made up to the business tax filing deadline, including extensions.
  • This flexibility can be especially helpful for business owners finalizing cash flow and tax planning.

Solo 401(k) Plans

  • Employee deferrals must usually be made by December 31 of the tax year.
  • Employer profit-sharing contributions may be made up to the business tax filing deadline, including extensions.

Why This Matters

  • Missed deadlines cannot be retroactively fixed.
  • Overcontributions may trigger penalties if not corrected.
  • Strategic use of remaining contribution windows can meaningfully reduce taxable income and improve long-term retirement outcomes.

If you are unsure which accounts still allow contributions or how much you may be eligible to add, this is a good time to review your options.