Overview
Individual Retirement Accounts (IRAs) provide a tax-advantaged way to save for retirement. Contributions to a Traditional IRA may be tax-deductible, reducing taxable income in the year of contribution. However, deductibility depends on several factors, including participation in an employer-sponsored retirement plan, income level, and filing status. When a spouse has a retirement plan at work, special IRS rules apply for married couples filing jointly.
IRA Deductibility Rules for Married Couples
The deductibility of contributions is affected by whether either spouse is covered by a retirement plan at work:
- Neither spouse covered: Full IRA deduction regardless of income.
- One spouse covered by a workplace retirement plan: The deduction for the spouse who is not covered depends on modified adjusted gross income (MAGI).
- Both spouses covered: Deduction phases out at lower MAGI levels.
2025 Deduction Phase-Outs
For married couples filing jointly where one spouse is covered by a retirement plan at work:
| Situation | MAGI for Full Deduction | MAGI for Partial Deduction |
|---|---|---|
| IRA contributor not covered by a retirement plan | Up to $218,000 | $218,000 – $228,000 |
| IRA contributor covered by a retirement plan | Up to $116,000 | $116,000 – $136,000 |
- Contributions above these ranges are not deductible but can still be made to the IRA as non-deductible contributions.
- Limits are for total contributions to all IRAs per person.
Example:
- Married couple files jointly.
- Spouse A is covered by a 401(k) at work; Spouse B is not covered.
- Their MAGI is $220,000.
- Spouse B can claim a partial deduction for a Traditional IRA contribution because $220,000 falls within the $218,000–$228,000 phase-out range.
- Spouse A cannot claim a deduction because $220,000 exceeds the full deduction limit but is within the phase-out range, so a partial deduction is allowed.
Contribution Limits
- The maximum contribution for 2025 is $6,500 per person, with an additional $1,000 catch-up contribution if age 50 or older.
- This limit applies to the combined total of all traditional and Roth IRAs for the individual.
Strategic Considerations
- Backdoor IRA Strategy:
- For high-income couples ineligible for a deductible contribution, a non-deductible IRA contribution can be converted to a Roth IRA (subject to tax considerations).
- Coordinate with Workplace Plans:
- Even if one spouse is covered by a retirement plan, the non-covered spouse can maximize deductible contributions if income is within the phase-out range.
- Tax Planning:
- Deductible contributions reduce current taxable income, lowering overall tax liability.
- Non-deductible contributions grow tax-deferred, providing long-term retirement benefits.
- Filing Status Implications:
- The rules differ for married filing separately, with much lower income limits for deductibility (MAGI $0–$10,000).
Example Calculation
- Married couple filing jointly.
- Spouse A (covered by 401(k)) contributes $6,500.
- MAGI = $130,000 (within Spouse A’s deduction phase-out range $116,000–$136,000).
Partial deduction calculation for Spouse A:
Deductible Amount = $6,500 * {136,000 – 130,000}/{136,000 – 116,000} = 6,500 * {6,000}/{20,000} approx 1,950
- Spouse A can deduct $1,950 of the $6,500 contribution.
- Spouse B, not covered, may be eligible for a full deduction if income falls below $218,000.
Conclusion
When one spouse is covered by a retirement plan at work, the deductibility of a Traditional IRA contribution for the non-covered spouse depends on the couple’s combined MAGI. Understanding phase-out ranges, contribution limits, and strategic options such as backdoor IRAs can help maximize tax benefits while maintaining retirement savings goals. Proper planning ensures the couple optimizes both current tax deductions and long-term retirement growth.
