Traditional IRA Calculator: Growth and Tax Savings

Traditional IRA calculator diagram showing tax-deferred growth, annual contributions, tax deduction savings

Quick answer: A 35-year-old with $20,000 saved, contributing $7,000 a year at 7% returns, reaches about $813,471 by age 65, with roughly $46,200 in lifetime tax savings at a 22% rate. Enter your age, balance, contribution, return, and tax rate above for your projection.

Last reviewed: October 2026

Key facts

Contributions are often tax-deductible now; you pay ordinary income tax on withdrawals in retirement.
2026 contribution limit: $7,500 ($8,600 if age 50+) across all your traditional and Roth IRAs (IRS Notice 2025-67).
Growth compounds tax-deferred: no yearly tax drag on dividends or gains inside the account.
Withdrawals before age 59 1/2 generally face a 10% early penalty plus income tax.

A traditional IRA calculator projects your retirement balance from your current savings, yearly contributions, and expected returns. It also estimates the lifetime tax savings from deducting your contributions, so you can see both sides of the deal: tax-deferred growth now and the upfront deduction you get each year you contribute.

The traditional IRA's pitch is simple: a tax break today for money you will not touch for decades. Every deductible dollar you contribute trims this year's tax bill, and everything inside grows without yearly taxes slowing it down. The tradeoff comes at withdrawal, when the IRS taxes the money as ordinary income. This free tool shows both the growth and the tax savings in one step, with no signup.

How to use the traditional IRA calculator

Enter your current age and your planned retirement age.
Enter your current balance across your traditional IRA accounts.
Enter your annual contribution (2026 limit: $7,500, or $8,600 if 50+).
Enter your expected annual return; 6-8% is a common long-run stock-market assumption.
Enter your marginal tax rate to estimate yearly deduction savings.
Click Calculate to see your projected balance, total contributions, and estimated tax savings.

Traditional IRA calculator formula: growth and tax savings

Future value = Balance x (1 + r)^n + Annual x (((1 + r)^n - 1) / r)

The projection has two parts. Your current balance compounds for n years at the expected return, and each year's contribution grows as an annuity: the standard future-value-of-annuity formula. Total contributions are your starting balance plus annual contributions times years. Tax savings are estimated as your deductible annual contributions times your marginal tax rate times the number of years, the cash the deduction keeps in your pocket each April. This assumes your contributions are fully deductible; if you or your spouse is covered by a workplace plan and your income exceeds IRS phase-out levels, part of the deduction may be limited.

Remember the back end of the deal: withdrawals in retirement are taxed as ordinary income, and required minimum distributions begin at 73 or 75 under SECURE 2.0. The calculator shows the accumulation; your retirement tax rate decides the final take-home.

Worked examples

Example 1: age 35 to 65, $20,000 balance, $7,000/year, 7%, 22% tax

n = 30 years. Balance growth = 20,000 x 1.07^30 = 20,000 x 7.61226 = $152,245. Contribution growth = 7,000 x ((1.07^30 - 1)/0.07) = 7,000 x 94.46079 = $661,226. Projected balance = $813,471. Total contributions = 20,000 + 7,000 x 30 = $230,000. Tax savings = 7,000 x 30 x 0.22 = $46,200.

Example 2: age 45 to 65, $50,000 balance, $7,000/year, 6%, 24% tax

n = 20 years. Balance growth = 50,000 x 1.06^20 = 50,000 x 3.20714 = $160,357. Contribution growth = 7,000 x ((1.06^20 - 1)/0.06) = 7,000 x 36.78559 = $257,499. Projected balance = $417,856. Total contributions = 50,000 + 7,000 x 20 = $190,000. Tax savings = 7,000 x 20 x 0.24 = $33,600. Starting 10 years later costs over $395,000 of growth, the price of lost compounding time.

Traditional vs Roth IRA reference table

Feature	Traditional IRA	Roth IRA
Tax break timing	Deduction now (if eligible)	No deduction now
Withdrawals in retirement	Taxed as ordinary income	Tax-free after 59 1/2 + 5-year rule
2026 contribution limit	$7,500 ($8,600 if 50+)	$7,500 ($8,600 if 50+)
Income limits on contributions	None for contributing; limits on deducting	Phase-outs apply ($153k single / $242k joint)
RMDs	Required at 73/75	None for the original owner
Best when	Your retirement tax rate will be lower	Your retirement tax rate will be higher

Tips for maximizing a traditional IRA

Contribute early in the year. January contributions get up to 15 extra months of compounding versus waiting until the tax deadline.
Automate the full limit. $7,500 a year is $625 a month; automatic transfers turn the limit into a habit.
Reinvest the tax savings. If your deduction saves you $1,540, invest that refund too instead of spending it.
Coordinate with your 401(k). Get the full employer match first, then fund the IRA for its wider investment choice.
Plan Roth conversions in low-income years. Early retirement or a sabbatical year can be the cheapest time to convert at low rates.
Keep beneficiary forms current. IRA beneficiary designations override your will; review them after marriages, divorces, and births.

Common mistakes

Assuming the deduction is automatic. If you are covered by a workplace plan and earn above the IRS phase-out, the deduction shrinks or disappears.
Double-counting the limit. The $7,500 cap is shared across all your traditional and Roth IRAs combined, not per account.
Forgetting the 10% early penalty. Withdrawals before 59 1/2 generally add a 10% penalty on top of income tax, with limited exceptions.
Ignoring RMDs. At 73 or 75 the IRS forces withdrawals; plan Roth conversions beforehand if RMDs will push you into higher brackets.
Investing too conservatively young. Decades of low-yield holdings inside a tax-deferred account waste the compounding advantage.

Frequently asked questions

How much will my traditional IRA grow?

It depends on your balance, contributions, return, and time. A 35-year-old with $20,000 contributing $7,000 yearly at 7% reaches about $813,471 by 65. Time matters most: starting 10 years later at the same contribution cuts the result roughly in half. Use the calculator above with your numbers.

Are traditional IRA contributions tax deductible?

Often yes, but not always. If neither you nor your spouse is covered by a workplace retirement plan, contributions are fully deductible. If either of you is covered, the deduction phases out above IRS income limits. Nondeductible contributions are still allowed and grow tax-deferred.

What is the traditional IRA contribution limit for 2026?

The 2026 limit is $7,500 if you are under 50, or $8,600 if you are 50 or older, per IRS Notice 2025-67. The limit is shared across all your traditional and Roth IRAs combined, and you cannot contribute more than your taxable compensation for the year.

Should I choose a traditional or Roth IRA?

Choose traditional if you expect a lower tax rate in retirement than today, since the deduction is worth more now. Choose Roth if you expect higher rates later or want tax-free withdrawals and no RMDs. Many savers split contributions between both.

When can I withdraw from a traditional IRA without penalty?

After age 59 1/2, withdrawals avoid the 10% early-withdrawal penalty, though income tax still applies. Exceptions like first-home purchases (up to $10,000), higher education, and certain medical costs can waive the penalty earlier, but the tax remains.

What is my traditional IRA worth after tax in retirement?

Multiply the projected balance by one minus your retirement tax rate. The post's example balance of $813,471 taxed at 22% in retirement is worth 813,471 x (1 - 0.22) = 813,471 x 0.78 = $634,507 after tax. That after-tax figure is the right one to compare with a Roth IRA balance, which is already tax-free.

What does an early traditional IRA withdrawal really cost?

Withdrawals before age 59 and a half generally pay ordinary income tax plus a 10% early-withdrawal penalty. On a $10,000 early withdrawal at a 22% tax rate, the tax is $2,200 and the penalty is $1,000, a total cost of $3,200, leaving just $6,800. Exceptions exist for first-home purchases, higher education and certain hardships, but the default cost is steep.

Sources

Internal Revenue Service (IRS): IRA contribution limits for 2026, $7,500 ($8,600 if 50 or older)
IRS Publication 590-A: contributions to IRAs, including deduction rules and limits

Key takeaways

Bookmark this tool and rerun it yearly as your balance and contribution change.
$20,000 at 35, $7,000/year at 7%: about $813,471 by 65, with $46,200 in tax savings at 22%.
The 2026 limit is $7,500 ($8,600 if 50+), shared across all your IRAs.
Deductions depend on workplace-plan coverage and income; check the phase-outs.
Withdrawals are taxed as income, RMDs start at 73/75, and early withdrawals add a 10% penalty.