Q&A: How contribution rules differ for IRA and 401(k) accounts

Dear Liz: I recently changed jobs. Typically I max out my 401(k) contributions each year. I contributed $20,700 to my previous company’s plan before quitting. Eligibility for my new company’s 401(k) doesn’t kick in until after 12 months of continuous employment, so I won’t be able to access this benefit until 2023. Can I set up an IRA or Roth IRA to reach the $27,500 limit for people 50 and older? I am married, filing jointly and our combined income exceeds $214,000.

Answer: Please talk to your company about fixing this outmoded requirement, which is costing its workers enormously in lost matching funds and compounded returns. Most companies have much shorter waiting periods, and the most enlightened employers enroll workers immediately. It’s hard enough to save adequately for retirement without an arbitrary yearlong delay.

The limits for contributing to workplace plans are separate from those for IRAs and Roth IRAs. For 2022, the limits for 401(k)s are $20,500 for people under 50 and $27,500 for people 50 and older. The contribution limits for IRAs (regular or Roth) are $6,000 for people under 50 and $7,000 for people 50 and older.

If you had access to a workplace plan at any point during the year, your ability to deduct your contribution would phase out with modified adjusted gross income between $109,000 and $129,000 if you are married filing jointly, said Mark Luscombe, principal analyst for Wolters Kluwer Tax & Accounting. The phaseout is between $68,000 and $78,000 for single taxpayers.

Normally when you can’t deduct an IRA contribution, you’re better off contributing to a Roth IRA. Contributions to a Roth aren’t deductible but withdrawals are tax-free in retirement.

However, the ability to contribute to a Roth IRA phases out with modified adjusted gross incomes between $204,000 and $214,000 for married joint filers and between $129,000 and $144,000 for single filers.

If you can’t contribute directly to a Roth, you could consider what’s called a “back door” Roth contribution, in which you contribute to a regular IRA and then convert the money to a Roth. Although direct Roth contributions have income limits, Roth conversions do not. However, you are required to pay income taxes on a typical conversion, so this maneuver works best if you don’t already have a large pretax IRA.