Roth vs Traditional IRA Comparison
Compare a simple Roth style and Traditional style IRA scenario using your own tax rate and return assumptions. See estimated after-tax values at retirement under these assumptions.
This is an educational tool to help you understand how tax timing affects retirement savings, not personalized tax or financial advice.
Last updated: February 9, 2026
Roth vs Traditional IRA: Which Account Fits Your Situation?
You've decided to open an IRA but can't figure out which type makes sense. Someone at work swears by Roth. Your parents say Traditional is smarter. The truth is neither is universally "better"—the right choice depends on when you'll pay less in taxes.
This Roth vs Traditional IRA calculator compares both options using your actual tax rates. Enter what you pay now and what you expect to pay in retirement, and see which account leaves you with more spendable money. The common mistake is looking only at the tax deduction today without considering what you'll owe later.
For 2025, you can contribute up to $7,000 to IRAs ($8,000 if you're 50 or older). Roth contributions have income limits that phase out starting at $150,000 for single filers and $236,000 for married couples filing jointly. Verify current limits at irs.gov.
How They Compare at a Glance
| Feature | Traditional IRA | Roth IRA |
|---|---|---|
| Tax timing | Deduct now, pay later | Pay now, withdraw tax-free |
| 2025 contribution limit | $7,000 ($8,000 if 50+) | $7,000 ($8,000 if 50+) |
| Income limits | None for contributions; deductibility may be limited | Phaseout at $150,000+ (single) |
| Required distributions | Start at age 73 | None during your lifetime |
| Early withdrawal | Taxes + 10% penalty before 59½ | Contributions anytime; earnings have rules |
The Tax Rate Question That Drives Everything
Traditional IRA: You deduct contributions at your current tax rate, then pay taxes on withdrawals at your retirement rate. If your retirement rate is lower, you win.
Roth IRA: You contribute after-tax dollars now, then withdraw everything tax-free. If your retirement rate is higher (or equal), you typically win.
When rates are equal, the math is identical—but Roth still has edge cases in its favor: no required distributions, more flexibility before 59½, and protection against future tax law changes.
Two Scenarios to Consider
Example 1: Early Career, Lower Tax Bracket
Setup: Age 28, earning $58,000, currently in the 22% bracket. Expects higher income and 32% bracket in retirement. Contributing $7,000/year for 37 years at 7% return.
Result: Traditional ending balance: ~$1.15M, after 32% tax = $782,000 spendable. Roth ending balance: ~$897,000 (contributed after-tax) = $897,000 spendable.
Takeaway: Roth wins by $115,000 because paying 22% now beats paying 32% later. This is the textbook case for choosing Roth early in your career.
Example 2: Peak Earning Years, Higher Bracket
Setup: Age 52, earning $165,000, in the 32% bracket. Expects modest retirement spending in the 22% bracket. Contributing $8,000/year for 13 years at 7% return.
Result: Traditional ending balance: ~$175,000, after 22% tax = $136,500 spendable. Roth: ~$119,000 (contributed after 32% tax) = $119,000 spendable.
Takeaway: Traditional wins by $17,500 because deducting at 32% and paying 22% later creates real savings. This is when Traditional makes sense.
When Each Account Makes Sense
Choose Roth When
- You're early in your career with lower current income
- You expect higher tax rates in retirement
- You might need to access contributions before 59½
- You want to avoid required minimum distributions
- You're uncertain and want protection against tax law changes
Choose Traditional When
- You're in peak earning years with high current taxes
- You expect significantly lower income in retirement
- You plan to retire in a lower-tax state
- You need the tax deduction now for cash flow
- You're over Roth income limits and prefer simplicity over backdoor strategies
What This Calculator Assumes
This comparison uses flat tax rates you provide—it doesn't model progressive brackets, state taxes, or changes over time. Real tax situations are more complex.
Investment returns are assumed constant. Real markets fluctuate. The calculator also doesn't account for the value of avoiding required distributions (Roth advantage) or the time value of the Traditional tax deduction reinvested.
Use this for directional guidance, not precise planning. Try several scenarios with different tax rate assumptions to see how sensitive the outcome is.
Official Sources
- IRS.gov — Roth IRAs — Contribution limits, income limits, qualified distributions
- IRS.gov — Traditional IRAs — Deduction rules, RMD requirements
- SEC Investor.gov — IRA comparison education
Limits shown are for 2025 per IRS Notice 2024-80. Verify current figures at irs.gov.
For Educational Purposes Only - Not Financial Advice
This calculator provides estimates for informational and educational purposes only. It does not constitute financial, tax, investment, or legal advice. Results are based on the information you provide and current tax laws, which may change. Always consult with a qualified CPA, tax professional, or financial advisor for advice specific to your personal situation. Tax rates and limits shown should be verified with official IRS.gov sources.