✏️ Your Income & Plan Status

💰 Your 2026 Deduction

Your Contribution Limit $0
Phase-Out Range —
Through Phase-Out 0%
Deductible Amount $0
Non-Deductible Portion $0
Estimated Tax Saved (22%) $0

📋 Example Scenarios

All figures use 2026 Traditional IRA deduction rules. Every number below is produced by the same formula the calculator runs.

Example Example 1: Single, Under the Limit

Profile: Alex earns $70,000, is covered by a 401(k), and contributes to a Traditional IRA.

  • Filing status: Single, MAGI $70,000
  • Phase-out range: $81,000 - $91,000
  • MAGI is below the range, so the contribution is 100% deductible
  • Deduction = $7,500
Result: Entire $7,500 deductible

Example Example 2: Single, Mid Phase-Out

Profile: Riley earns $86,000 and is covered by a workplace plan.

  • MAGI $86,000 sits halfway through the $81,000 - $91,000 range
  • Phase-out fraction = ($86,000 - $81,000) / $10,000 = 50%
  • Deductible = $7,500 × (1 − 0.5) = $3,750
  • Non-deductible remainder: $3,750
Result: $3,750 deductible (50% phased out)

Example Example 3: Single, Above the Limit

Profile: Sam earns $100,000 and is covered by a 401(k).

  • MAGI $100,000 exceeds the $91,000 ceiling
  • Phase-out = 100%
  • Deductible amount = $0
  • Consider a backdoor Roth instead
Result: No deduction — above ceiling

Example Example 4: Married Filing Jointly, Below the Range

Profile: Two spouses file jointly with combined MAGI of $110,000; the contributor is covered by a 401(k) and is age 50+.

  • Filing status: Married Filing Jointly, covered by a plan
  • Joint phase-out range (covered contributor): $129,000 - $149,000
  • MAGI $110,000 is below the range, so the contribution is 100% deductible
  • Limit with catch-up = $7,500 + $1,100 = $8,600
Result: Fully deductible — below joint range

Example Example 5: Spouse Covered, High Income

Profile: One spouse has a 401(k); the contributing spouse does not. Joint MAGI $245,000.

  • Contributor is NOT covered, but spouse IS
  • Special phase-out: $242,000 - $252,000
  • MAGI $245,000 = 30% through the range
  • Deductible = $8,600 × 0.70 = $6,020
Result: Partially deductible — spouse coverage rule

📖 2026 Traditional IRA Deduction Rules

A Traditional IRA contribution is only deductible if you fall under the IRS income limits — and those limits only apply if you or your spouse are covered by a workplace retirement plan. The three phase-out schedules for 2026 are:

SituationPhase-Out Range (2026)
Single, covered by a plan$81,000 - $91,000
Married filing jointly, contributor covered$129,000 - $149,000
Married filing jointly, spouse covered but contributor not$242,000 - $252,000
Not covered (and spouse not covered)No limit — always deductible

🧮 How the Partial Deduction Is Prorated

Inside a phase-out range, the deduction is reduced proportionally. The formula is: Deductible = Limit × (1 − (MAGI − Lower) / (Upper − Lower)). For a single filer with MAGI of $86,000, that is $7,500 × (1 − 0.5) = $3,750. The IRS rounds the result up to the nearest $10, so $3,755 would be reported as $3,760 on Form 8606.

🔄 What To Do If You Cannot Deduct

If your income exceeds the ceiling, you have two strong options. First, a Roth IRA — contributions are never deductible but grow tax-free, and the 2026 Roth income limit phases out at $153,000-$168,000 (single) and $242,000-$252,000 (joint). Second, the backdoor Roth — make a non-deductible Traditional IRA contribution, then convert it, tracking the basis on Form 8606.

💡 Why the Deduction Phase-Out Catches People Off Guard

Many taxpayers assume that because they can contribute to a Traditional IRA, they can also deduct it. That is false. The contribution limit ($7,500 in 2026) is universal, but deductibility is income-tested whenever a workplace plan is in the picture. A mid-career professional who gets a raise past the $81,000 single threshold often discovers too late that part of their contribution is non-deductible and requires Form 8606 to track basis.

⚖ Deductible Traditional vs. Roth in the Phase-Out Zone

Inside a phase-out range the decision becomes marginal: a partially deductible Traditional contribution gives you a smaller write-off today in exchange for ordinary-income taxation at withdrawal. A Roth contribution gives no write-off but tax-free growth and no required minimum distributions. If your marginal rate today is higher than you expect in retirement, Roth usually wins in the phase-out zone.

💵 Tracking Non-Deductible Basis

Whenever you make a non-deductible Traditional IRA contribution, you must file Form 8606 with your return. This records your after-tax basis so that the same dollars are not taxed twice when you withdraw or convert. Failing to file Form 8606 is one of the most common — and most expensive — IRA paperwork mistakes.

⚠️ Important: This calculator uses 2026 IRS phase-out figures and assumes standard MAGI. It does not model every MAGI adjustment (such as foreign earned income exclusions or adoption expense deductions) and does not replace a filed Form 8606 or professional advice. Confirm your final deductible amount with tax software or a CPA.