The Basic Deductibility Rule
Traditional IRA contributions are tax-deductible — meaning they reduce your adjusted gross income (AGI) in the year contributed. The deduction rules depend on one key factor: does anyone in your household have access to a workplace retirement plan (401k, 403b, pension, SEP-IRA, SIMPLE IRA)?
No workplace plan for anyone: Contributions are always fully deductible, regardless of income. A high earner with no employer plan can contribute $7,000 to a Traditional IRA and deduct the full amount.
Workplace plan exists: Deductibility phases out based on Modified Adjusted Gross Income (MAGI). Source: IRS IRA deduction limits.
If You Have a Workplace Plan
If you are covered by a workplace retirement plan at any point during the year, the following 2026 phase-out ranges apply:
| Filing Status | Full Deduction | Partial Deduction | No Deduction |
|---|---|---|---|
| Single / Head of Household | MAGI ≤ $79,000 | $79,000–$89,000 | MAGI ≥ $89,000 |
| Married Filing Jointly (you covered) | MAGI ≤ $126,000 | $126,000–$146,000 | MAGI ≥ $146,000 |
| Married Filing Separately (covered) | $0 | $0–$10,000 | MAGI ≥ $10,000 |
Source: IRS Rev. Proc. 2025-40. Verify current figures at irs.gov.
Within the phase-out range, the deduction is partial — it reduces proportionally as income rises from the lower to the upper threshold. Your tax software calculates the exact partial deduction.
If Your Spouse Has a Workplace Plan (But You Don't)
Even if you personally have no workplace retirement plan, having a spouse who is covered creates a phase-out for your IRA deduction — but at a much higher income threshold:
- Married Filing Jointly: full deduction up to $236,000 MAGI; partial $236,000–$246,000; no deduction above $246,000.
This is often overlooked — many dual-income couples where only one partner has a 401k don't realise the non-covered spouse's IRA deduction has a phase-out at all, albeit at a generous income level.
Non-Deductible Contributions
Even when contributions aren't deductible, you can still make a Traditional IRA contribution (up to the annual limit). The contribution is made with after-tax dollars — it doesn't reduce your current tax bill but still grows tax-deferred. Track non-deductible contributions on Form 8606 — this establishes your cost basis and prevents you from paying tax on that money again at withdrawal.
Non-deductible IRA contributions are also the first step in the backdoor Roth IRA strategy — contribute to a Traditional IRA, then convert to Roth — used by high earners who exceed Roth IRA income limits. See our Backdoor Roth IRA Guide.
Roth IRA vs Deductible Traditional — Which to Choose
If you qualify for both a deductible Traditional IRA and a Roth IRA, the choice depends on your current vs expected future tax rates:
- Traditional (deductible) wins if your current tax rate is higher than your expected retirement tax rate. Tax now at 32%, withdraw later at 22%.
- Roth wins if your current tax rate is lower than your expected retirement rate. Common for young earners in the 10–12% bracket who'll be in higher brackets later.
- When uncertain: Roth provides more flexibility — no required minimum distributions, tax-free withdrawal, and withdrawal of contributions (not earnings) penalty-free at any age.
Retirement Contributions Globally
UK: UK personal pension contributions receive tax relief at your marginal rate — a basic rate taxpayer contributing £1,000 gets £250 in tax relief added by the government (total £1,250 in the pension). Higher-rate taxpayers can claim additional relief through Self Assessment. Annual allowance: £60,000 (2026/27). Lifetime Allowance has been abolished. HMRC pension tax relief at gov.uk.
India: Section 80C allows deduction up to ₹1.5 lakh/year for EPF contributions, PPF contributions, NPS employee contributions, life insurance premiums, and ELSS mutual funds — all qualifying for the same ₹1.5 lakh bucket. Section 80CCD(1B) allows an additional ₹50,000 deduction specifically for NPS contributions. Under the new tax regime (default), these deductions are not available. Income Tax India at incometaxindia.gov.in.
Canada: RRSP contributions are deductible up to 18% of prior year earned income (maximum $31,560 in 2026). The deduction reduces federal and provincial income tax. Unlike the US, you can carry forward unused RRSP room indefinitely. Contributions can be made within 60 days after year-end and still claimed for the prior tax year. CRA RRSP guide at canada.ca.