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Roth vs Traditional IRA

Compare Roth IRA vs Traditional IRA to see which retirement account saves you more in taxes.

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What Is the Roth vs Traditional IRA?

Roth IRAs and Traditional IRAs are the two most common types of individual retirement accounts. Both offer valuable tax advantages for retirement savers, but the timing of those benefits differs. A Traditional IRA gives you a tax deduction on your contributions now, reducing your taxable income this year, but your withdrawals in retirement are taxed as ordinary income. A Roth IRA is funded with after-tax dollars offering no upfront deduction, but your money grows tax-free and qualified withdrawals in retirement are completely tax-free. The decision between them comes down to one question: is your tax rate today higher or lower than what you expect in retirement?

The Formula

Traditional IRA After-Tax Value = Future Value x (1 - Retirement Tax Rate). Roth IRA After-Tax Value = Future Value (no further tax). Future Value of annual contributions: FV = P x ((1 + r)^n - 1) / r where P is annual contribution, r is expected annual return, and n is number of years until retirement. 2026 IRA contribution limits: $7,500 if under 50, $8,600 if age 50 or older.

Example

A 30-year-old investing $7,500 per year earning 7% annually until age 65. Future value of contributions: ~$1,036,000. With a Traditional IRA at 22% retirement tax rate: after-tax value ~$808,000. With a Roth IRA: after-tax value ~$1,036,000 because withdrawals are tax-free. If instead the retirement tax rate is 12%, Traditional wins: ~$912,000 after tax vs Roth at ~$1,036,000. The crossover happens when current and future tax rates are equal at which point both accounts produce identical after-tax wealth.

Common Uses

First-time retirement savers choosing between account types, mid-career professionals reassessing their savings strategy, anyone near a tax bracket boundary optimizing contributions, high earners evaluating Backdoor Roth IRA strategies, and retirement planning for tax diversification.

How to Use the Roth vs Traditional IRA →