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