IRA Calculator
The IRA calculator can be used to evaluate and compare Traditional IRAs, SEP IRAs, SIMPLE IRAs, Roth IRAs, and regular taxable savings. For comparison purposes, Roth IRA and regular taxable savings will be converted to after-tax values. To calculate Roth IRA with after-tax inputs, please use our Roth IRA Calculator. This calculator is mainly intended for use by U.S. residents.
Result
| Traditional, SIMPLE, or SEP IRA | Roth IRA | Regular Taxable Savings | |
| Balance at age 65 | $1,066,343 | $799,758 | $563,434 |
| Balance at age 65 (after tax) | $906,392 | $799,758 | $563,434 |
A Traditional, SIMPLE, or SEP IRA account can accumulate $106,634 more after-tax balance than a Roth IRA account at age 65. A Roth IRA account can accumulate $236,324 more than a regular taxable savings account.
Annual Schedule
| Traditional/SIMPLE/SEP IRA (Before Tax) | Traditional, SIMPLE, or SEP IRA (After Tax) | Roth IRA (After Tax) | Regular Taxable Savings (After Tax) | |||||
| Age | Start | End | Start | End | Start | End | Start | End |
| 30 | $30,000 | $39,300 | $25,500 | $33,405 | $22,500 | $29,475 | $22,500 | $29,138 |
| 31 | $39,300 | $49,158 | $33,405 | $41,784 | $29,475 | $36,869 | $29,138 | $36,074 |
| 32 | $49,158 | $59,607 | $41,784 | $50,666 | $36,869 | $44,706 | $36,074 | $43,322 |
| 33 | $59,607 | $70,684 | $50,666 | $60,081 | $44,706 | $53,013 | $43,322 | $50,896 |
| 34 | $70,684 | $82,425 | $60,081 | $70,061 | $53,013 | $61,819 | $50,896 | $58,812 |
| 35 | $82,425 | $94,870 | $70,061 | $80,640 | $61,819 | $71,153 | $58,812 | $67,083 |
| 36 | $94,870 | $108,063 | $80,640 | $91,853 | $71,153 | $81,047 | $67,083 | $75,727 |
| 37 | $108,063 | $122,046 | $91,853 | $103,739 | $81,047 | $91,535 | $75,727 | $84,760 |
| 38 | $122,046 | $136,869 | $103,739 | $116,339 | $91,535 | $102,652 | $84,760 | $94,199 |
| 39 | $136,869 | $152,581 | $116,339 | $129,694 | $102,652 | $114,436 | $94,199 | $104,063 |
| 40 | $152,581 | $169,236 | $129,694 | $143,851 | $114,436 | $126,927 | $104,063 | $114,371 |
| 41 | $169,236 | $186,890 | $143,851 | $158,857 | $126,927 | $140,168 | $114,371 | $125,143 |
| 42 | $186,890 | $205,604 | $158,857 | $174,763 | $140,168 | $154,203 | $125,143 | $136,399 |
| 43 | $205,604 | $225,440 | $174,763 | $191,624 | $154,203 | $169,080 | $136,399 | $148,162 |
| 44 | $225,440 | $246,467 | $191,624 | $209,497 | $169,080 | $184,850 | $148,162 | $160,454 |
| 45 | $246,467 | $268,755 | $209,497 | $228,441 | $184,850 | $201,566 | $160,454 | $173,300 |
| 46 | $268,755 | $292,380 | $228,441 | $248,523 | $201,566 | $219,285 | $173,300 | $186,723 |
| 47 | $292,380 | $317,423 | $248,523 | $269,809 | $219,285 | $238,067 | $186,723 | $200,751 |
| 48 | $317,423 | $343,968 | $269,809 | $292,373 | $238,067 | $257,976 | $200,751 | $215,409 |
| 49 | $343,968 | $372,106 | $292,373 | $316,290 | $257,976 | $279,079 | $215,409 | $230,728 |
| 50 | $372,106 | $401,932 | $316,290 | $341,643 | $279,079 | $301,449 | $230,728 | $246,736 |
| 51 | $401,932 | $433,548 | $341,643 | $368,516 | $301,449 | $325,161 | $246,736 | $263,464 |
| 52 | $433,548 | $467,061 | $368,516 | $397,002 | $325,161 | $350,296 | $263,464 | $280,945 |
| 53 | $467,061 | $502,585 | $397,002 | $427,197 | $350,296 | $376,939 | $280,945 | $299,212 |
| 54 | $502,585 | $540,240 | $427,197 | $459,204 | $376,939 | $405,180 | $299,212 | $318,302 |
| 55 | $540,240 | $580,154 | $459,204 | $493,131 | $405,180 | $435,116 | $318,302 | $338,250 |
| 56 | $580,154 | $622,464 | $493,131 | $529,094 | $435,116 | $466,848 | $338,250 | $359,096 |
| 57 | $622,464 | $667,311 | $529,094 | $567,215 | $466,848 | $500,484 | $359,096 | $380,881 |
| 58 | $667,311 | $714,850 | $567,215 | $607,623 | $500,484 | $536,138 | $380,881 | $403,645 |
| 59 | $714,850 | $765,241 | $607,623 | $650,455 | $536,138 | $573,931 | $403,645 | $427,434 |
| 60 | $765,241 | $818,656 | $650,455 | $695,857 | $573,931 | $613,992 | $427,434 | $452,294 |
| 61 | $818,656 | $875,275 | $695,857 | $743,984 | $613,992 | $656,456 | $452,294 | $478,272 |
| 62 | $875,275 | $935,291 | $743,984 | $794,998 | $656,456 | $701,469 | $478,272 | $505,419 |
| 63 | $935,291 | $998,909 | $794,998 | $849,073 | $701,469 | $749,182 | $505,419 | $533,788 |
| 64 | $998,909 | $1,066,343 | $849,073 | $906,392 | $749,182 | $799,758 | $533,788 | $563,434 |
What Is the IRA Calculator and Why It Matters
An IRA calculator projects the future value of an Individual Retirement Account based on current balance, annual contributions, expected rate of return, and years until retirement. It models the tax-advantaged growth of both Traditional IRAs (tax-deferred contributions and growth) and Roth IRAs (tax-free qualified withdrawals), helping savers understand how these accounts fit into their overall retirement plan.
The calculator accounts for annual contribution limits set by the IRS, catch-up contribution provisions for individuals age 50 and older, and the compounding effect of reinvested returns over decades. It may also estimate the tax impact of Traditional IRA contributions (current-year deduction) versus Roth IRA contributions (no deduction now, but tax-free withdrawals later).
Retirement savings planning is one of the most consequential long-term financial decisions individuals face. The IRA calculator helps answer critical questions: "Am I saving enough?" "What difference does starting 5 years earlier make?" "Should I choose a Traditional or Roth IRA?" Without quantitative modeling, these decisions are often guided by guesswork or anxiety rather than data.
The calculator is particularly valuable for self-employed individuals, workers without employer-sponsored retirement plans, and those supplementing 401(k) savings—the groups most likely to rely heavily on IRAs for retirement income.
How to Accurately Use the IRA Calculator for Precise Results
- Step 1: Enter your current IRA balance. Include the total across all IRAs of the same type (e.g., sum all Traditional IRA balances).
- Step 2: Specify your annual contribution. The 2024 limit is $7,000 for individuals under 50 and $8,000 for those 50 and older. Enter the amount you plan to contribute each year.
- Step 3: Input your expected annual return. A diversified portfolio typically targets 6–8% average annual returns over long periods. Adjust based on your asset allocation and risk tolerance.
- Step 4: Enter your current age and planned retirement age. The calculator uses this to determine the number of contributing years and compounding periods.
- Step 5: Select Traditional or Roth. For Traditional IRAs, enter your current and expected retirement tax brackets to estimate the net after-tax value of withdrawals. For Roth IRAs, the projected balance equals the after-tax value since qualified withdrawals are tax-free.
- Step 6: Review projections. Compare scenarios with different contribution levels, start dates, and return assumptions to optimize your savings strategy.
Tips for accuracy: Remember that IRA contribution limits are adjusted periodically for inflation. The calculator's long-term projection assumes consistent contributions, but your actual contributions may vary. Run the calculator annually with updated inputs for the most current projection.
Real-World Scenarios & Practical Applications
Scenario 1: Early Career Roth IRA
A 25-year-old opens a Roth IRA with $1,000 and contributes $500/month ($6,000/year) until age 65. At a 7% average annual return, the calculator projects a balance of approximately $1,280,000. Since Roth withdrawals are tax-free, the full amount is available without tax liability. Total contributions over 40 years: $241,000. Compound growth: approximately $1,039,000—over 80% of the final balance comes from returns, not contributions.
Scenario 2: Traditional IRA Tax Comparison
A 35-year-old in the 22% tax bracket contributes $7,000/year to a Traditional IRA. The immediate tax savings is $1,540/year. At 7% return over 30 years, the projected balance is approximately $661,000. If the retiree drops to the 12% bracket, the after-tax value is approximately $581,700. The calculator compares this to a Roth IRA with the same pre-tax savings: contributing $5,460/year (after paying 22% tax) produces $516,000—all tax-free. In this scenario, the Traditional IRA wins because the tax rate drops in retirement.
Scenario 3: Catch-Up Contributions Impact
A 50-year-old with $200,000 in IRA savings maximizes contributions at $8,000/year (including $1,000 catch-up). At 6% return over 15 years to age 65, the calculator projects approximately $672,000. Without the catch-up contribution, the projection drops to $652,000—a $20,000 difference from just $1,000/year in additional contributions, amplified by 15 years of compounding.
Who Benefits Most from the IRA Calculator
- Self-employed individuals: IRAs may be their primary retirement savings vehicle, making accurate projection essential.
- Employees supplementing 401(k) plans: Determining how much additional IRA savings is needed to meet retirement goals.
- People deciding between Traditional and Roth IRAs: Comparing the tax impact of each option based on current and projected future tax rates.
- Late starters: Assessing whether catch-up contributions and aggressive saving can close the gap for retirement readiness.
- Financial advisors: Illustrating IRA growth scenarios during client consultations and retirement planning sessions.
Technical Principles & Mathematical Formulas
The future value projection combines compound growth on the existing balance with the future value of an annuity (regular contributions):
FV = PV × (1 + r)^n + PMT × [(1 + r)^n − 1] / r
Where:
- FV = future value at retirement
- PV = current IRA balance
- PMT = annual contribution
- r = expected annual return (as a decimal)
- n = years until retirement
For Traditional IRA after-tax value:
After-Tax Value = FV × (1 − Retirement Tax Rate)
For Roth IRA, the after-tax value equals FV (no tax on qualified withdrawals).
Traditional vs. Roth breakeven analysis: The Roth is better when the retirement tax rate exceeds the current rate, and vice versa. The breakeven condition is:
Current Tax Rate = Retirement Tax Rate
Required Minimum Distribution (RMD) for Traditional IRAs starting at age 73:
RMD = Account Balance / IRS Life Expectancy Factor
Frequently Asked Questions
Can I contribute to both a Traditional and Roth IRA?
Yes, but the combined contribution cannot exceed the annual limit ($7,000 or $8,000 with catch-up for 2024). You might split contributions between both types to diversify your tax exposure in retirement.
What happens if I withdraw from an IRA before age 59½?
Early withdrawals from a Traditional IRA are subject to income tax plus a 10% penalty. Roth IRA contributions (not earnings) can be withdrawn penalty-free at any time. Roth earnings withdrawn before 59½ are subject to tax and penalty unless an exception applies.
Do Roth IRAs have required minimum distributions?
No. Unlike Traditional IRAs, Roth IRAs have no RMDs during the owner's lifetime. This makes them effective estate planning tools, as the account can continue to grow tax-free throughout the owner's life.
What if my income is too high for Roth IRA contributions?
High earners who exceed Roth IRA income limits may use the "backdoor Roth" strategy: contribute to a non-deductible Traditional IRA and then convert to a Roth. The tax implications depend on whether you have existing pre-tax IRA balances (the pro-rata rule).
How does inflation affect IRA projections?
A projected $1 million balance in 30 years will have significantly less purchasing power than $1 million today. Use an inflation-adjusted return rate (subtract 2–3% from your nominal return) to project in today's dollars, giving a more realistic view of future purchasing power.