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Roth vs Traditional IRA, side by side — same dollars, different tax paths.
💡 The 2025 IRA limit is $7,000 ($8,000 if 50+). Roth vs Traditional is only about tax timing: same limit, same growth — the winner is decided by your tax rate today vs. retirement.
Both accounts share the same $7,000 contribution limit (2025: $8,000 if you're 50 or older) and grow tax-free inside the account. The entire decision comes down to when you pay tax: a Traditional IRAdeducts contributions today (lowering this year's tax bill) but taxes every withdrawal in retirement; a Roth IRA takes after-tax money now and every qualified withdrawal — principal and growth — is 100% tax-free.
Compare your marginal tax rate today against your expected effective rate in retirement. If today's rate is higher (common in peak earning years), Traditional wins — you dodge a 24%+ tax today and pay maybe 12% later. If today's rate is lower (early career, sabbatical, low-income years), Roth locks in the bargain rate forever. This calculator runs both accounts through the same growth math so you can see the after-tax gap in dollars.
Contributions compound annually at your expected return using the future value of an annuity:FV = C × ((1+r)n − 1) / r. The Traditional balance grows on pre-tax dollars (larger balance, taxed on withdrawal); the Roth balance grows on after-tax dollars (smaller balance, zero tax out). The comparison is apples-to-apples because the out-of-pocket cost today is identical.
Even when Traditional projects slightly ahead, Roth has strategic perks: no required minimum distributions (RMDs) after age 73, tax-free inheritance for beneficiaries, and a hedge against future tax-rate increases. Many people hold both — Traditional for the deduction in high-income years, Roth for flexibility and tax diversification. Re-run this comparison whenever your bracket changes.
Disclaimer: This calculator is for informational and educational purposes only and does not constitute financial, investment, or legal advice. Calculated results are estimates based on the inputs you provide; actual figures may vary. Always consult a qualified professional before making financial decisions.
The Roth IRA Calculator lets you figure out roth ira calculatorinstantly, without reaching for a spreadsheet or doing the math by hand. Whether you're planning a budget, checking a loan, or working through homework, the tool applies the correct formula behind the scenes and shows the result the moment you enter your numbers.
Unlike a static chart or table, this calculator adapts to your exact inputs. You can adjust any value and see the outcome update in real time, which makes it easy to compare scenarios — for example, "what if the rate were 1% lower?" or "what if I paid an extra $50 a month?"
Common uses: people reach for this tool when they need to find a roth or traditional ira in 24 percent bracket, roth vs traditional at retirement tax rate, 7000 dollar ira contribution tax savings, or roth ira break even tax rate.
Browser-based tools like this one have a few real advantages over installed software or manual methods:
The Roth IRA Calculator is based on the following formula:
FV = C × ((1+r)ⁿ − 1)/r · Roth net = FV × (1 − t_now) · Trad net = FV × (1 − t_retire)
Variables: FV = Future value of the contribution stream ($) C = Annual contribution ($) r = Annual return (decimal) n = Years invested t_now = Your marginal tax rate today (decimal) t_retire = Expected marginal tax rate in retirement (decimal)
Identical annual contributions C compound at return r for n years (future value of an annuity). Roth pays tax up front (smaller balance, tax-free out); Traditional deducts now (full balance, taxed at the retirement rate t_retire on withdrawal). The after-tax winner is decided purely by t_now vs t_retire.
Worked example: Step 1: C = $7,000/year, r = 7%, n = 30 → (1.07)^30 ≈ 7.6123. Step 2: FV = 7,000 × (7.6123 − 1) / 0.07 ≈ $661,226. Step 3: Roth net at t_now = 22%: 661,226 × (1 − 0.22) ≈ $515,756. Step 4: Traditional net at t_retire = 32%: 661,226 × (1 − 0.32) ≈ $449,634. Result: if your retirement tax rate rises from 22% to 32%, the Roth comes out about $66,122 ahead.
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