Traditional IRA Calculator
Estimate your Traditional IRA growth, tax deduction benefits, required minimum distributions, and compare with a Roth IRA.
| Metric | Traditional IRA | Roth IRA |
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Estimate your Traditional IRA balance at retirement, the upfront tax deduction your contributions earn today, and the required minimum distributions (RMDs) you'll eventually owe — compared side by side with an equivalent Roth IRA.
How Traditional IRA Calculator Works
Your current balance and annual contributions are projected forward using the same compound-growth and future-value-of-an-annuity formulas as a standard retirement calculator: balance × (1 + r)^years, plus contribution × [(1 + r)^years − 1] ÷ r. Because Traditional IRA contributions are typically tax-deductible, the calculator also estimates today's tax savings as your contribution (up to the annual IRS limit) × your current tax bracket — money you effectively get back this year rather than at retirement.
Unlike a Roth IRA, Traditional IRA withdrawals are taxed as ordinary income, so the projected balance is multiplied by (1 − your expected retirement tax rate) to show its real after-tax spending power — this is the number that matters for comparing against tax-free Roth withdrawals.
The calculator also estimates your first Required Minimum Distribution (RMD): it grows your retirement balance forward to age 73 (when RMDs currently must begin), then divides that projected balance by the IRS Uniform Lifetime Table's distribution period for age 73 (26.5 years) to estimate the minimum amount you'd be forced to withdraw — and taxed on — that first year.
See It In Action
Who Uses Traditional IRA Calculator and Why
- Projecting a Traditional IRA balance at retirement along with the upfront tax deduction each year\'s contribution generates today.
- Estimating your first Required Minimum Distribution at age 73 to plan ahead for the taxable income it will create.
- Comparing a Traditional IRA\'s after-tax retirement value against an equivalent Roth IRA under the same contribution and growth assumptions.
- Deciding how much of an annual contribution is worth making based on the immediate tax savings at your current bracket.
Mistakes to Avoid
- Treating the projected balance at retirement as spendable dollar-for-dollar — Traditional IRA withdrawals are taxed as ordinary income, so the calculator\'s after-tax figure (balance × (1 − retirement tax rate)) is the more realistic number to plan around.
- Forgetting that the RMD estimate is based on the IRS Uniform Lifetime Table\'s distribution period for age 73 (26.5 years) — using a different starting age or a different beneficiary situation (like a much younger spouse) would use a different divisor and produce a different figure.
- Assuming your current and retirement tax brackets will be identical — since the entire Traditional-vs-Roth comparison depends on this gap, an inaccurate guess in either direction changes which account type actually comes out ahead.
Tips for Best Results
- If you\'re in a high tax bracket now and expect a lower one in retirement, the upfront Traditional IRA deduction tends to be the more valuable side of the trade-off — the calculator\'s current-year tax savings figure quantifies that today.
- Run the RMD estimate even if retirement feels far off — seeing the projected first-year distribution amount can help you plan around the extra taxable income it will create at age 73.
Fixing Common Problems
My estimated RMD looks larger than I expected. — RMDs are calculated on your account balance grown all the way to age 73, divided by a relatively short distribution period (26.5 years) — a well-grown balance by that age can produce a surprisingly large required withdrawal, and thus a surprisingly large tax bill, in that first year.
Terms Explained
Uniform Lifetime Table: An IRS table of life-expectancy-based divisors used to calculate the minimum amount most retirement account owners must withdraw each year starting at age 73.
Tax deduction: The reduction in your taxable income Traditional IRA contributions typically generate in the year they\'re made, up to the annual IRS contribution limit.