Traditional IRA Calculator United States

Enter your current balance, yearly contribution, expected rate of return, years until retirement and marginal tax rate, and this Traditional IRA calculator projects your balance and the income tax you can defer with deductible contributions.

What the Traditional IRA calculator does

A Traditional Individual Retirement Account is a tax-advantaged account for US workers. Contributions may be tax-deductible in the year you make them, the balance grows tax-deferred while invested, and withdrawals in retirement are taxed as ordinary income. Because gains are not taxed each year, the full balance stays invested and earns returns on returns, which over a long horizon can add up to far more than the contributions.

How the projection works

Each year the calculator adds your contribution and applies the assumed return to the running balance. Your starting balance grows for the full term, and each contribution grows for the years remaining after it is made.

The tax saving is estimated separately. A deductible contribution lowers your taxable income, so the tool multiplies your yearly contribution by your marginal tax rate and by the number of years to give the total income tax deferred.

Try several scenarios: raise the contribution, extend the horizon, or lower the return assumption, and compare the projected balances.

Worked example

Suppose you start with $10,000, contribute $7,000 a year, expect a 7 percent average return, and have 30 years until retirement, with a 24 percent marginal tax rate. The projected balance grows to roughly $737,000 from $220,000 contributed; the difference is tax-deferred investment growth. Over the same 30 years, $7,000 a year at a 24 percent marginal rate produces about $50,400 in upfront income-tax deductions.

Contribution limits and eligibility

For 2026 the IRS limit for savers under 50 is $7,500, with an additional catch-up amount from age 50. The limit is stored as a parameter and kept current.

Deductibility is a separate question. Anyone with earned income can generally contribute, but whether the contribution is fully deductible depends on your income and whether you or a spouse are covered by a workplace retirement plan. If your deduction is reduced or phased out, the calculator's tax-saving figure overstates your benefit, so treat it as an upper bound.

Getting the most from a Traditional IRA

Regular contributions, even modest ones, make better use of compounding than occasional large deposits, and money contributed early has decades to grow while the same amount added later has only a few years. Use a conservative long-run return, because optimistic rates inflate the projection. If you also hold a 401(k) or Roth IRA, consider how the IRA fits alongside them.

Assumptions and limitations

The calculator uses annual compounding with one contribution a year and a single constant return, while real markets rise and fall. It does not adjust for inflation, so judge the future balance by the lifestyle it could fund, not the dollar figure alone.

The tax-saving estimate assumes your contributions are fully deductible at the rate you enter. It does not account for income-based phase-outs, changes in your bracket over time, or the income tax you will owe on withdrawals in retirement. Deferring tax is not avoiding it: the benefit is keeping more money invested now and, for many people, withdrawing later at a lower rate.

This is general information, not financial advice. Confirm figures and rules with a qualified professional before making decisions.

About This Traditional IRA Calculator

Use this Traditional IRA calculator to get an instant, accurate estimate. The figures follow official IRS guidance and every rate and threshold is kept up to date for 2026. Adjust the inputs above to match your situation, or browse all our calculators to plan your next step.