Roth IRA Calculator

Project your Roth IRA balance and estimate tax-free retirement income.

📈 Roth IRA Calculator
Annual Roth IRA Contribution ($) $7,000
$
$500$8K
Current Roth IRA Balance ($) $15,000
$
$0$2M
Current Age 28 yrs
yrs
1865
Retirement Age 65 yrs
yrs
4075
Expected Annual Return 7%
%
1%15%
Expected Retirement Tax Rate 22%
%
10%37%
Roth IRA Balance
Tax-Free (Roth advantage)
Traditional IRA after tax
Roth Advantage

📈 What is a Roth IRA?

A Roth IRA is an Individual Retirement Account that provides tax-free growth and tax-free withdrawals in retirement. Unlike a Traditional IRA where contributions may be tax-deductible but withdrawals are taxed, a Roth IRA is funded with after-tax dollars - you get no upfront tax deduction, but all qualified withdrawals in retirement, including all investment growth, are completely tax-free. This makes the Roth IRA one of the most powerful tax-advantaged vehicles available to American savers.

The Roth IRA is governed by specific income eligibility limits. For 2024, single filers earning up to $146,000 can contribute the full $7,000 ($8,000 for those 50+). The contribution limit phases out between $146,000 and $161,000 for single filers, and between $230,000 and $240,000 for married filing jointly. High earners above these limits can use the Backdoor Roth IRA strategy to still benefit from Roth's tax-free growth.

The key advantage of a Roth IRA over a Traditional IRA is the tax-free nature of withdrawals, which is most valuable when you expect to be in a higher tax bracket in retirement than you are now. Additionally, Roth IRAs have no Required Minimum Distributions (RMDs) during the owner's lifetime - unlike Traditional IRAs and 401ks, you are never forced to take withdrawals. This makes Roth IRAs excellent for legacy planning and for managing taxes in retirement by choosing when and how much to withdraw.

📐 Roth IRA Growth Formula

Roth Balance = PV × (1+r)ⁿ + PMT × [(1+r)ⁿ − 1] / r × (1+r)
Traditional After-Tax = Roth Balance × (1 − retirement tax rate)
Roth Advantage = Roth Balance − Traditional After-Tax
PV = Current Roth IRA balance
PMT = Annual contribution (after-tax dollars)
r = Annual return rate
n = Years to retirement

The Roth IRA balance formula is identical to the Traditional IRA formula - the growth mechanics are the same. The key difference is at withdrawal: the Roth balance is tax-free, while a Traditional IRA of equal size must be reduced by your retirement tax rate to arrive at the after-tax equivalent. The Roth Advantage shows how much more after-tax money you'll have from a Roth compared to a Traditional IRA at your expected retirement tax rate.

📖 How to Use This Calculator

Steps

1
Enter your annual Roth IRA contribution - up to $7,000 (or $8,000 if 50+). Must be earned income and within income limits.
2
Enter current balance and ages - your existing Roth IRA balance, current age, and retirement target.
3
Set return rate and retirement tax rate - expected portfolio return and the tax rate you expect to pay on withdrawals in retirement (for Roth vs Traditional comparison).
4
Click Calculate to see Roth balance, the tax-free income advantage, and how Roth compares to a Traditional IRA after tax.

💡 Example Calculations

Example 1 - Age 28, $7,000/Year at 7% to Age 65

Contribution = $7,000/year | Balance = $15,000 | Age 28→65 | Return = 7% | Retirement Tax = 22%

1
FV of $15,000 over 37 years at 7% = $15,000 × (1.07)³⁷ = $214,900
2
FV of $7,000/year annuity-due over 37 years at 7% = $1,368,600
3
Roth IRA balance (all tax-free) = $214,900 + $1,368,600 = $1,583,500
Traditional equivalent after 22% tax = $1,583,500 × 78% = $1,235,130 | Roth Advantage: $348,370
Try this example →

Example 2 - Starting at 22 with Zero Balance

Contribution = $7,000/year | Balance = $0 | Age 22→65 | Return = 8% | Tax Rate = 24%

Roth IRA balance: ~$2,700,000 tax-free | Traditional after 24% tax: $2,052,000 | Roth advantage: $648,000
Try this example →

❓ Frequently Asked Questions

What is a Roth IRA and how is it different from a Traditional IRA?+
A Roth IRA is funded with after-tax dollars. No tax deduction upfront, but all qualified withdrawals in retirement - including all earnings - are completely tax-free. Traditional IRA contributions may be deductible, but withdrawals are taxed. Roth is better if you expect a higher tax rate in retirement; Traditional is better if you expect a lower rate.
What are the Roth IRA contribution limits for 2024?+
The limit is $7,000 ($8,000 for age 50+). Contributions phase out between $146,000–$161,000 (single) and $230,000–$240,000 (married filing jointly). Above these limits, use the Backdoor Roth IRA strategy.
When can I withdraw from a Roth IRA tax-free?+
Contributions can be withdrawn anytime, tax-free and penalty-free (already taxed). Earnings can be withdrawn tax-free after age 59½ if the account has been open at least 5 years. Early withdrawal of earnings before 59½ incurs a 10% penalty plus income tax, with some exceptions.
Should I choose Roth IRA or Traditional IRA?+
If you're early in your career and expect higher income/taxes later, Roth is generally better. If you're in peak earning years and expect lower retirement income, Traditional's upfront deduction may be more valuable. Many advisors recommend both for 'tax diversification' - mixing pre-tax and after-tax savings gives flexibility in retirement.
Can I convert a Traditional IRA to a Roth IRA?+
Yes. A Roth conversion moves money from a Traditional IRA to a Roth IRA. You pay ordinary income tax on the converted amount in that year, but all future growth and withdrawals become tax-free. Conversions make sense in low-income years, to reduce future RMDs, or to leave tax-free money to heirs. There is no income limit for Roth conversions.