Roth vs Traditional IRA Calculator 2025 — Which Is Better? | LazyTools
💰 Roth vs Traditional IRA Calculator

Roth vs Traditional IRA — Which Is Better for You?

Enter your income, tax rates, age, and contribution to see a side-by-side comparison of Roth and Traditional IRA outcomes — including projected balance, after-tax retirement income, eligibility check, and a personalised recommendation. Updated for 2025 and 2026 IRS limits.

2025 & 2026 limits Eligibility check Balance projection After-tax comparison Personalised pick
Disclaimer: This calculator is for educational and illustrative purposes only. It does not constitute financial, tax, or investment advice. Results are estimates based on the inputs you provide and simplified assumptions. Your actual results will vary. Consult a qualified financial advisor or tax professional before making IRA contribution decisions.
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💰 IRA Comparison Calculator

Enter your details to see Roth vs Traditional IRA side-by-side

The key driver: if you expect a higher tax rate in retirement, Roth usually wins. If you expect a lower tax rate, Traditional usually wins.

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Enter your income, tax rates, and contribution amount, then click Compare
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📖 How to Use

How to use the Roth vs Traditional IRA calculator

1
Enter your age and retirement age
The number of years between now and retirement determines how long your contributions compound. Even a few years makes a significant difference.
2
Enter your MAGI
Your Modified Adjusted Gross Income determines whether you're eligible for a Roth IRA and whether your Traditional IRA contributions are tax-deductible.
3
Set current and retirement tax rates
This is the most important input. If you expect a higher tax rate in retirement, Roth usually wins. If you expect a lower rate, Traditional usually wins.
4
Set your contribution and growth rate
Enter how much you plan to contribute each year (up to the IRS limit) and your expected annual investment return. 7% is a common long-term real return assumption.
5
Click Compare
See a side-by-side comparison of projected balances, after-tax retirement income, eligibility status, and a personalised recommendation with the reasoning explained.
6
Adjust and explore scenarios
Change your expected retirement tax rate to see how it affects the outcome. Try different contribution amounts, growth rates, or retirement ages to explore your options.
✔ Key Features

The most useful free Roth vs Traditional IRA calculator

📊
Side-by-Side Projection
Both accounts grow the same investment but differ in when taxes are paid. See the exact after-tax retirement income from each, not just the raw balance.
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Eligibility Check
Automatically checks your Roth IRA eligibility and Traditional IRA deductibility based on your MAGI, filing status, and workplace plan coverage using current IRS rules.
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2025 & 2026 IRS Limits
Uses the latest IRS contribution limits, catch-up contribution rules, and income phase-out ranges for both 2025 and 2026 tax years.
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Personalised Recommendation
Clear winner recommendation with explanation of why based on your tax rate comparison, income, and timeline. Not just a number — a decision you can act on.
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Tax Savings Quantified
Shows the exact dollar value of the Traditional IRA tax deduction each year and compounded over your career. Helps you see the upfront advantage clearly.
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Free, No Account
100% free with no signup, no paywall, no premium tier. Calculate as many scenarios as you need without creating an account.
📐 IRA Guide

Roth vs Traditional IRA — Complete Guide to Choosing the Right Account

The Roth IRA vs Traditional IRA decision is one of the most important choices in personal finance. Both accounts offer significant tax advantages and the same annual contribution limits. The difference is when you pay taxes: Roth pays tax now and withdraws tax-free; Traditional defers tax until retirement. Choosing correctly based on your situation can mean tens or hundreds of thousands of additional dollars in retirement.

The core rule: Roth wins if your tax rate rises, Traditional wins if it falls

The single most important factor is the comparison between your current marginal tax rate and your expected tax rate in retirement. If you are in a 22% bracket today and expect to be in a 12% bracket in retirement (because you will have lower income), a Traditional IRA saves you 22% on contributions and costs only 12% on withdrawals — a net gain of 10 percentage points. Conversely, if you are young, early in your career, and expect your income to grow significantly, a Roth IRA lets you lock in a low tax rate today and withdraw tax-free later at a higher rate.

Roth IRA income limits 2025

For 2025, Roth IRA contributions phase out for single filers between $150,000 and $165,000 MAGI. For married filing jointly, the phase-out range is $236,000 to $246,000. Above the upper limit, you cannot contribute to a Roth IRA directly. The annual contribution limit is $7,000 (under 50) or $8,000 (age 50 and over). Note: even if you cannot contribute directly due to high income, you may be eligible for a backdoor Roth IRA conversion.

Roth IRA income limits 2026

For 2026, the Roth IRA contribution limit increases to $7,500 (under 50) or $8,600 (age 50+, reflecting the increased $1,100 catch-up). Income phase-out ranges increase slightly: single filers from $153,000 to $168,000; married filing jointly from $242,000 to $252,000.

Traditional IRA deductibility — when do you actually get the tax break?

Anyone with earned income can contribute to a Traditional IRA, but the tax deduction is where the rules get complex. If neither you nor your spouse are covered by a workplace retirement plan (401k, 403b, SEP-IRA, etc.), your Traditional IRA contribution is fully deductible at any income level. If you are covered by a workplace plan, deductibility phases out: for single filers between $79,000 and $89,000 MAGI (2025); for married filing jointly between $126,000 and $146,000. If you earn above these ranges, your Traditional IRA contribution is not deductible — making a Roth IRA generally superior in that situation.

Required Minimum Distributions — the hidden Roth advantage

Traditional IRAs require you to take Required Minimum Distributions (RMDs) starting at age 73. These withdrawals are taxable income, which can push you into a higher bracket, increase Medicare premiums (IRMAA surcharges), and affect Social Security taxation. Roth IRAs have no RMDs during the original owner's lifetime. This makes Roth accounts particularly valuable for estate planning and for people who don't need the money in early retirement and want to let the account continue growing tax-free.

Who should choose a Roth IRA?

  • Young people early in their career (lower income now, higher income expected later)
  • Anyone in the 12% or lower federal tax bracket currently
  • People who want tax diversification alongside a 401(k) or other pre-tax accounts
  • High earners who expect significant tax law changes increasing future rates
  • People who want to leave tax-free assets to heirs
  • Anyone who expects RMDs from other accounts to already push them into higher brackets

Who should choose a Traditional IRA?

  • People in a high current tax bracket who expect lower income in retirement
  • Anyone whose Roth IRA contribution would not be deductible and who earns above the Roth income limits (backdoor Roth may be worth exploring)
  • People who need to reduce taxable income today to qualify for other tax benefits (ACA subsidies, student loan forgiveness, etc.)
  • Those who plan to donate their IRA to charity (Qualified Charitable Distributions from Traditional IRAs are tax-free)
  • Anyone over the income limits for Roth who wants any IRA tax advantage

Can you contribute to both a Roth and Traditional IRA?

Yes. You can split your contributions between both account types in the same year, but the total across all IRAs cannot exceed the annual limit. In 2025, that means a maximum of $7,000 combined (or $8,000 if age 50+). Many financial planners recommend tax diversification — having both pre-tax (Traditional) and post-tax (Roth) retirement savings — so you can manage your tax bracket in retirement by drawing from the most advantageous account each year.

📋 IRS Limits Reference

2025 and 2026 Roth & Traditional IRA Limits at a Glance

Rule20252026
Contribution limit (under 50)$7,000$7,500
Contribution limit (age 50+)$8,000$8,600
Catch-up contribution$1,000$1,100
Roth phase-out: Single$150,000–$165,000$153,000–$168,000
Roth phase-out: Married joint$236,000–$246,000$242,000–$252,000
Trad deduction phase-out: Single (covered)$79,000–$89,000$81,000–$91,000
Trad deduction phase-out: Married joint (covered)$126,000–$146,000$129,000–$149,000
Trad deduction phase-out: Married joint (spouse covered)$236,000–$246,000$242,000–$252,000
RMD start age7373
Early withdrawal penalty (before 59½)10%10%
❓ FAQ

Roth vs Traditional IRA FAQ

Choose Roth if you expect a higher tax rate in retirement (good for young people and low earners now). Choose Traditional if you expect a lower tax rate in retirement (good for high earners currently). Use the calculator above to see the exact dollar difference based on your situation.

2025 Roth IRA income limits: Single filers phase out from $150,000 to $165,000 MAGI. Married filing jointly phases out from $236,000 to $246,000. Above the upper limit you cannot contribute. Below the lower limit you can contribute the full $7,000 (or $8,000 if 50+).

2026 Roth IRA limits: Contribution limit increases to $7,500 ($8,600 if 50+). Single phase-out: $153,000 to $168,000. Married filing jointly: $242,000 to $252,000. Catch-up contribution increases to $1,100.

Depends on income and whether you have a workplace plan. If no workplace plan: always fully deductible. If you have a workplace plan: phases out for single filers at $79,000-$89,000 MAGI (2025) and married filing jointly at $126,000-$146,000 (2025).

Yes, but total contributions across all IRAs cannot exceed $7,000 (2025) or $7,500 (2026). You can split the amount between both types. Many advisors recommend tax diversification by contributing to both.

To withdraw EARNINGS tax-free and penalty-free from a Roth IRA, the account must be at least 5 years old AND you must be 59.5 or older. You can always withdraw your original CONTRIBUTIONS at any time with no taxes or penalty, regardless of the 5-year rule.

Yes. Traditional IRAs require RMDs starting at age 73 (SECURE 2.0 Act). These withdrawals are taxed as ordinary income. Roth IRAs have no RMDs during the original owner's lifetime, which is a significant advantage for estate planning and tax management in retirement.

A strategy for high earners who exceed Roth income limits. Contribute to a non-deductible Traditional IRA (no income limit), then convert it to Roth IRA. Generally tax-free if no pre-tax IRA funds exist. Watch out for the pro-rata rule if you have existing pre-tax IRAs. Consult a tax professional.

The LazyTools Roth vs Traditional IRA Calculator is 100% free with no signup. Enter your income, tax rates, age, and contribution to get a side-by-side comparison with projected balances, after-tax retirement income, and a personalised recommendation. No account, no limits.