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Roth vs. Traditional IRA Calculator

Compare Roth and Traditional IRA contribution paths using your income, eligibility details, savings amount, tax rates, and time horizon.

RetirementIRA StrategyTax Planning

IRA Details

Tax timing profile

Covered by a workplace plan

Answer yes if you are covered by a 401(k), 403(b), SIMPLE, SEP, or similar employer retirement plan.

IRA timing

IRA Comparison

After-tax outcome

2026Single

Roth scenario leads

$30,214

Under these assumptions, the Roth path finishes with the larger after-tax retirement value.

Roth after-tax

$275,892

Projected Roth value at retirement under the return assumption.

Traditional after-tax

$245,678

Traditional value after estimated retirement tax on pretax dollars.

Roth advantage

$30,214

11.0% difference between after-tax outcomes.

Comparison View

Review the visual summary, table, and assumptions behind the comparison.

What drives the comparison

Current marginal tax rate
32.0%
Retirement tax rate
24.0%
Filing status
Single
MAGI entered
$150,000
Annual IRA savings
$7,500
Break-even retirement tax rate
32.0%

Current-year mechanics

IRA contribution limit
$7,500
Roth contribution room
$7,500
Deductible Traditional room
$0
Roth contribution
$7,500
Traditional contribution
$7,500
Traditional nondeductible portion
$7,500
Traditional tax savings
$0

How to use this tool

Use the estimate to clarify the IRA tax tradeoff.

  1. 01

    Enter the savings decision

    Start with filing status, expected MAGI, workplace-plan coverage, age, IRA savings amount, and the tax rates you want to compare.

  2. 02

    Pressure-test the tax spread

    The main tradeoff is whether a current deduction or future tax-free treatment is more valuable under the assumptions entered.

  3. 03

    Treat the result as a planning prompt

    A close result may point toward tax diversification, liquidity needs, backdoor Roth planning, or broader account strategy rather than a single obvious answer.

About this model

A contribution comparison, not a recommendation.

This calculator compares Roth and Traditional IRA outcomes using filing status, MAGI, workplace-plan coverage, IRA savings, tax-rate assumptions, and projected after-tax retirement values.

The model uses 2026 IRA contribution limits, Roth income phaseouts, Traditional IRA deduction phaseouts, and the age-50 catch-up amount. Projection rules are held constant so the comparison stays focused on the entered assumptions.

Bring the IRA tax tradeoff into focus.

If the estimate is close, review contribution eligibility, tax timing, liquidity, retirement income expectations, and broader account strategy with PeakStone.

Roth vs. Traditional IRA Calculator | PeakStone Wealth