Roth IRA calculator
Model a Roth IRA balance at 65. Contributions are made after tax, and qualified distributions can be tax-free; income eligibility, contribution limits and the five-year rules still apply. Free, with 2026 IRS limits built in.
How much can a Roth IRA grow by retirement?
A 25-year-old contributing the 2026 Roth IRA maximum of $7,500 annually at an 8% assumed return grows the account to approximately $2,073,000 by age 65 in this arithmetic scenario. Total contributed: $300,000 across 40 years; modeled growth: about $1,773,000. A qualified distribution may be tax-free; eligibility and the five-year rules must be checked separately.
2026 Roth IRA contribution limit: $7,500 under 50, $8,600 age 50+. Single-filer phase-out runs from $153,000 to $168,000 MAGI. MFJ: $242,000–$252,000.
Roth IRA quick facts
- 2026 contribution limit (under 50): $7,500IRS Notice 2025-67
- 2026 catch-up limit (50+): $8,600 ($1,100 catch-up)IRS Notice 2025-67
- 2026 single MAGI phase-out: $153,000–$168,000IRS Pub 590-A
- 2026 MFJ MAGI phase-out: $242,000–$252,000IRS Pub 590-A
- Growth after 40 years at 8% (maxing $7,500/yr): ≈$2,073,000 modeled balanceSnowballr Research using standard compound math
- Backdoor Roth: A conversion path that depends on tax basis, the pro-rata rule and current IRS guidanceIRS Publication 590-A
2026 Roth IRA contribution limits
- Under 50: $7,500/year ($625/month)
- 50 and over: $8,600/year ($716.67/month) with catch-up
- Phase-out (single): $153,000–$168,000 MAGI
- Phase-out (married filing jointly): $242,000–$252,000 MAGI
Above the direct-contribution phase-out, some people model a backdoor Roth: contribute to a nondeductible Traditional IRA, then consider a conversion after checking tax basis, the pro-rata rule and current IRS guidance.
Why the Roth IRA is so powerful
Contributions are made after tax, earnings are not generally taxed each year inside the account, qualified withdrawals can be tax-free, and the original owner generally has no lifetime RMD requirement. Compare those rules with a taxable brokerage, where dividends and realized gains can create current tax.
Example: $7,500/year ($625/month) for 35 years at 8% with month-end deposits grows to ~$1.43M. If a withdrawal at 65 meets the qualified-distribution rules, the Roth treatment may be tax-free. A taxable account has different tax timing and rates; compare the actual account, basis, fees and tax assumptions rather than treating the difference as a guaranteed saving.
Roth IRA growth at 8% annual return
| Monthly contrib. | Years | Total contributed | Final balance |
|---|---|---|---|
| $300 | 30 | $108,000 | ~$447,000 |
| $500 | 30 | $180,000 | ~$745,000 |
| $625 (max) | 30 | $225,000 | ~$931,000 |
| $625 (max) | 35 | $262,500 | ~$1.43M |
| $625 (max) | 40 | $300,000 | ~$2.18M |
Roth IRA Calculator FAQ
Can I contribute to a Roth IRA if I make too much?
Roth IRA vs Roth 401(k) — which is better?
Can I withdraw Roth IRA contributions early?
What's a Roth conversion ladder?
Should I prioritize Roth IRA over 401(k)?
Are Roth IRA earnings really 100% tax-free?
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Methodology and editorial standards
Each calculator uses its own inputs and method. Review the labels, units and assumption notes shown with the result. Costs, taxes, fees, benefits and other factors are not modeled unless the page or calculator explicitly says they are. A fixed-rate projection is a scenario, not a forecast or personalized recommendation.
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