At a glance
Quick answer
This page estimates the current federal income tax change if an entered traditional IRA contribution is fully deductible. It does not determine whether the contribution is permitted or deductible. Taxable compensation, age based limits, filing status, modified adjusted gross income, and workplace retirement plan coverage can change the answer. When a deduction is available, it reduces adjusted gross income but does not reduce W-2 wages for Social Security or Medicare. The calculator therefore compares federal income tax before and after the assumed deduction while leaving payroll tax unchanged. Use the result as a conditional scenario, then verify deductibility from the applicable IRA worksheet and workplace plan facts.
How the calculation works
The result assumes the entered contribution is deductible
The first calculation applies federal tax to the entered wages. The second subtracts the traditional IRA amount as an adjustment to income and recalculates tax under the same filing status and year. The difference is potential income tax savings. A $7,000 deduction affecting only 22% bracket dollars produces a $1,540 comparison because $7,000 × 22% = $1,540. Payroll tax remains the same because making an IRA contribution outside payroll does not reduce W-2 Social Security or Medicare wages. The tool does not calculate a partial deduction inside a modified adjusted gross income phaseout.
Workplace plan coverage controls the deduction phaseout
For 2025, a single filer or head of household covered by a workplace plan has a traditional IRA deduction phaseout from $79,000 to $89,000 of modified adjusted gross income. For a joint return when the contributing spouse is covered, the range is $126,000 to $146,000. If the contributor is not covered but a spouse is, the joint range is $236,000 to $246,000. A covered married person filing separately generally uses a $0 to $10,000 range. For 2026 planning, the comparable ranges are $81,000 to $91,000, $129,000 to $149,000, $242,000 to $252,000, and $0 to $10,000. The page does not ask for coverage or MAGI, so it makes no deductibility finding.
Contribution capacity and deductibility answer different questions
The 2025 combined traditional and Roth IRA contribution limit is $7,000, plus a $1,000 catch up for someone age 50 or older. For 2026, the limit is $7,500 and the indexed catch up is $1,100. The calculator rejects amounts above the maximum possible age based total of $8,000 for 2025 or $8,600 for 2026, and it rejects an amount above entered compensation. It does not determine age, compensation from sources not entered, or whether the catch up applies. A permitted traditional contribution may still be partly or wholly nondeductible, and nondeductible contributions require basis tracking.
2025 and 2026 values
Tax year 2025
2025 final IRA amounts
The 2025 final contribution ceiling is $7,000, or $8,000 with the age 50 catch up. Workplace plan deduction phaseouts begin at $79,000 for a covered single filer, $126,000 for a joint return with the contributor covered, and $236,000 when only the contributor's spouse is covered. Each cited range spans another $10,000 or $20,000 as described above.
Tax year 2026
2026 planning IRA amounts
The labeled 2026 planning view uses a $7,500 contribution ceiling and a $1,100 age 50 catch up. The covered single phaseout is $81,000 to $91,000, the covered contributor joint range is $129,000 to $149,000, and the joint range when only the contributor's spouse is covered is $242,000 to $252,000.
Recalculate it yourself
Worked example
A fully deductible $7,000 contribution at $100,000 of wages
A single filer with $100,000 of W-2 wages enters a $7,000 traditional IRA contribution for 2025 and tests the conditional case in which the full amount is deductible.
- Taxable income before the assumed deduction = $100,000 wages − $15,750 standard deduction = $84,250.
- Adjusted gross income after the assumed deduction = $100,000 − $7,000 = $93,000, and taxable income = $93,000 − $15,750 = $77,250.
- The affected $7,000 remains in the 22% ordinary bracket, so potential income tax savings = $7,000 × 22% = $1,540.
- The final 2025 Tax Table amounts reconcile as $13,455 before − $11,915 after = $1,540. Payroll tax savings = $0.
Result
The modeled current federal difference is $1,540 only if the full $7,000 is deductible. The filer must separately establish contribution capacity, workplace plan coverage, modified adjusted gross income, and the deductible amount.
What is included
- A federal before and after comparison that assumes the full entered traditional IRA contribution is deductible.
- Final 2025 or labeled 2026 planning brackets and standard deductions for the selected filing status.
- Unchanged employee payroll tax on the entered W-2 wages.
What is not included
- Traditional IRA contribution eligibility, taxable compensation, workplace plan coverage, MAGI phaseout arithmetic, and the deductible amount.
- Roth IRA eligibility, nondeductible basis, Form 8606 reporting, conversions, distributions, penalties, and required minimum distributions.
- State or local treatment and any claim that the entered contribution qualifies for a federal deduction.
Common mistakes
Assuming a contribution is automatically deductible
A traditional IRA may accept a contribution that produces no current deduction. Workplace plan coverage and modified adjusted gross income can phase the deduction down to zero. The calculator does not resolve that phaseout.
Checking only one spouse's plan coverage
On a joint return, the applicable range differs when the contributor is covered and when only the contributor's spouse is covered. Use the correct coverage facts before interpreting the conditional savings.
Adding an income tax result to payroll savings
An IRA contribution does not change the W-2 wages used for Social Security and Medicare. In the example, $1,540 is the income tax difference and $0 is the payroll tax difference.
Frequently asked questions
What does the IRA tax savings calculator assume?
It estimates the federal income tax difference assuming the entered traditional IRA contribution is deductible. It does not determine whether that deduction is allowed.
Does the calculator check traditional IRA deduction eligibility?
No. Income, filing status, workplace retirement plan coverage, and other rules can limit or eliminate the deduction. Validate eligibility separately.
Does this estimate apply to Roth IRA contributions?
No. Roth IRA contributions are generally not deductible. This focused estimate is for the potential federal effect of a deductible traditional IRA contribution.
Primary sources
- 2025 Instructions for Form 1040, opens in a new tab
Reviewed 2026-07-25
- IRS Revenue Procedure 2024-40, opens in a new tab
Reviewed 2026-07-25
- IRS Revenue Procedure 2025-32, opens in a new tab
Reviewed 2026-07-25
- IRS Publication 590-A for 2025, opens in a new tab
Reviewed 2026-07-26