Why Not Every IRA Contribution Is Fully Deductible
A Traditional IRA contribution isn't automatically tax-deductible once you're covered by a workplace retirement plan like a 401(k). Above a certain income, the deduction phases out gradually until it disappears entirely — even though you can still contribute up to the annual limit. This is different from asking how much you'll save overall from combining a 401(k) and IRA; it's specifically about how much of a given IRA contribution the IRS lets you deduct once phase-out applies. If you aren't covered by any workplace plan, none of this applies and your contribution is fully deductible regardless of income.
How It's Calculated
| Step | Item | Rule |
|---|---|---|
| 1 | Not covered by a plan | Fully deductible, any income |
| 2 | Below phase-out range | Fully deductible |
| 3 | Inside phase-out range | Deduction shrinks proportionally to income |
| 4 | Above phase-out range | $0 deductible (still may contribute) |
Frequently Asked Questions
If neither you nor your spouse is covered by an employer plan, your contribution is fully deductible no matter your income.
You can still contribute it, but file IRS Form 8606 to track your basis so you aren't taxed twice on it later.
※ Reference estimate based on recent IRS phase-out figures, which change annually. Consult a tax professional for your exact situation.