退職時の税引後残高を計算。
2026 limit: $7,500 under 50; $8,600 age 50+
2026 phase-out range: $153,000–168,000
$1,074,424
$245,000
$819,424
35
Your income is below the phase-out threshold — you can contribute the full amount.
Roth IRA withdrawals of contributions are always tax- and penalty-free. Withdrawals of earnings before age 59½ are subject to income tax plus a 10% penalty unless an exception applies.
| Category | 2026 Limit |
|---|---|
| Under age 50 | $7,500 |
| Age 50 and older (includes catch-up) | $8,600 |
| Single / Head of Household MAGI phase-out | $153,000 – $168,000 |
| Married Filing Jointly MAGI phase-out | $242,000 – $252,000 |
| Married Filing Separately | Phased out above $10,000 |
Source: IRS announcement, fall 2025 (confirmed by Charles Schwab, Motley Fool, Wells Fargo). 2026 Roth IRA contribution limit increased from $7,000 (2025) to $7,500.
25歳から年6,000ドル、年7%リターン:
| 年齢 | 積立合計 | 成長 | 税引後残高 |
|---|---|---|---|
| 35歳 | 6万ドル | 3万ドル | 9万ドル |
| 45歳 | 12万ドル | 15.6万ドル | 27.6万ドル |
| 55歳 | 18万ドル | 48.9万ドル | 66.9万ドル |
条件を満たす引き出しは**完全に非課税**(元本+成長)。RMDなし。2026年MAGIフェーズアウト:独身15万〜16.5万ドル、既婚23.6万〜24.6万ドル。
Cross-checked against authoritative formulas (IRS, NIST, ACSM) and updated for 2025/2026 tax years and rates.
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FAQ
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A Roth IRA calculator is a free retirement planning tool that projects how much your Roth IRA account will grow by retirement and whether your income lets you contribute the full amount. Our Roth IRA calculator factors in current balance, annual contribution, expected return, MAGI, filing status, and years to retirement. The Roth IRA calculator also tells you whether you're in the phase-out range and adjusts the projected contribution accordingly.
How it works
Our Roth IRA calculator projects how your account grows tax-free, factoring in the IRS contribution limit and your MAGI phase-out range.
Type your current age and the age you plan to retire. The Roth IRA calculator uses the difference as the projection horizon.
Type the amount already in your Roth IRA and how much you plan to contribute each year (up to the IRS limit). The Roth IRA calculator caps at $7,500 (under 50) or $8,600 (age 50+).
Enter the expected annual return. Roth IRAs typically hold stock-and-bond portfolios — historical S&P 500 nominal return is ~10%, conservative is 6-7%. The Roth IRA calculator models this as a constant annual rate.
Type your Modified Adjusted Gross Income (line 11 of Form 1040 plus add-backs). Pick single or married filing jointly. The Roth IRA calculator uses this to determine your allowed contribution (full, partial, or zero in the phase-out range).
The Roth IRA calculator shows your projected tax-free balance at retirement, total contributions, total tax-free investment growth, and whether your income keeps you in the contribution phase-out range.
Project Traditional and Roth IRA growth to retirement with side-by-side tax comparison.
Project 401(k) growth with employer match, contribution limits, and tax-deferred compounding.
Project retirement savings and check if you are on track.
Compute your Required Minimum Distribution using the IRS Uniform Lifetime Table.
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