IRA Calculator

An Individual Retirement Account (IRA) is a tax-advantaged savings vehicle designed to help individuals accumulate wealth for retirement outside of an employer-sponsored plan. Traditional IRAs allow you to contribute pre-tax dollars, meaning you defer taxes on contributions and earnings until you withdraw funds in retirement. This tax-deferred compounding is one of the most powerful forces in long-term wealth building.

The IRA calculator on this page projects your account's growth using monthly compounding, which mirrors how most investment returns are credited in practice. Your current balance, annual contribution, expected annual return, inflation rate, and time horizon all interact to determine your projected retirement nest egg. Understanding each variable gives you the clarity to make smarter contribution decisions today.

The IRS sets annual contribution limits that adjust periodically for inflation. For 2024, the limit is $7,000 per year (plus a $1,000 catch-up contribution if you are age 50 or older). Contributing the maximum amount each year and starting as early as possible dramatically increases the final balance due to the exponential nature of compound growth.

Traditional IRAs are available to anyone with earned income below certain thresholds, and contributions may be fully or partially tax-deductible depending on whether you or your spouse have access to a workplace retirement plan and your modified adjusted gross income. Consulting a financial advisor can help you determine deductibility for your specific situation.

This calculator projects your IRA future value by applying monthly compounding over the number of months between your current age and retirement age. At each month, the existing balance earns one month's worth of interest, and your monthly contribution is added. This produces a more accurate result than simple annual compounding because returns are reinvested continuously throughout the year.

The closed-form equivalent of the month-by-month loop the calculator uses is shown below. Use this formula to verify any result manually or to understand how the variables interact.

After computing the nominal future value, the calculator adjusts it for inflation to express the result in today's purchasing power. It also estimates sustainable monthly retirement income using the widely cited 4% withdrawal rule, which suggests withdrawing 4% of your portfolio per year to minimize the risk of outliving your savings over a 30-year retirement.

Knowing the IRS rules surrounding IRA contributions helps you maximize the tool's accuracy and your real-world planning. The 2024 contribution limit is $7,000 per year, rising to $8,000 if you are 50 or older. These limits are per individual across all Traditional and Roth IRAs combined, not per account.

You must have earned income (wages, salaries, self-employment income) at least equal to the amount you contribute. Married couples where one spouse has little or no earned income may still contribute via a spousal IRA, allowing both partners to contribute up to the limit each year.

Traditional IRA contributions may be deductible. If neither you nor your spouse participates in a workplace plan, contributions are fully deductible regardless of income. If you do have a workplace plan, deductibility phases out at higher income levels. Non-deductible contributions are still allowed, and earnings still grow tax-deferred until withdrawal.

Required Minimum Distributions (RMDs) begin at age 73 under current law (SECURE 2.0 Act). You must withdraw a minimum amount each year starting at that age, making it important to factor in your post-retirement tax situation when projecting income. Early withdrawals before age 59½ are subject to a 10% penalty plus ordinary income tax, with limited exceptions for disability, first-home purchase, and certain medical expenses.

The single most influential variable in any IRA projection is time. Starting contributions even five years earlier can add hundreds of thousands of dollars to your final balance because of exponential compounding. Each dollar saved in your 20s has decades to compound before retirement, dwarfing the impact of any single year's contribution made in your 50s.

Expected annual return is the second major driver. Stock-heavy portfolios have historically averaged roughly 7–10% nominal annual returns over long periods (before inflation), while more conservative allocations including bonds typically average 4–6%. This calculator defaults to 7%, a commonly used real-world estimate for a diversified equity portfolio, but you should adjust it to reflect your actual investment allocation and risk tolerance.

The inflation rate input lets you translate your future balance into today's purchasing power. A balance of $1.2 million in 35 years sounds impressive, but at 2.5% annual inflation it is worth only about $505,000 in today's dollars. The inflation-adjusted result displayed by the calculator is a more honest measure of your future standard of living.

The growth multiple shown in the results (future value divided by total contributions) quantifies how many times your money multiplied. A growth multiple of 5x means every dollar you contributed grew to five dollars by retirement — largely through compound earnings, not out-of-pocket savings. Maximizing this multiple requires starting early, contributing consistently, and minimizing fees on your investments.

This calculator focuses on Traditional IRA growth mechanics, but many savers also consider a Roth IRA. The core difference is the timing of taxation. Traditional IRA contributions may be pre-tax (reducing your taxable income today), while withdrawals in retirement are taxed as ordinary income. Roth IRA contributions are after-tax (no deduction now), but qualified withdrawals in retirement are completely tax-free, including all earnings.

If you expect to be in a higher tax bracket in retirement than today, a Roth IRA often produces a better after-tax outcome. If you expect a lower bracket in retirement — common for high earners — the Traditional IRA deduction may be more valuable. Many financial planners recommend diversifying across both account types to maintain flexibility in managing taxable income during retirement.

Unlike Traditional IRAs, Roth IRAs have income-based eligibility limits. For 2024, contributions phase out between $146,000–$161,000 MAGI for single filers and $230,000–$240,000 for married filing jointly. High earners may use a backdoor Roth IRA strategy (contributing to a non-deductible Traditional IRA and then converting) to access Roth benefits regardless of income.

Both account types share the same annual contribution limits, the same early-withdrawal penalty structure (for earnings in a Roth), and the same basic investment flexibility — you can hold stocks, ETFs, bonds, mutual funds, and more. The calculator's future-value math applies equally to both; the main difference in real-world outcomes comes from the tax treatment of withdrawals.

Reaching the maximum contribution limit every year is the single most effective strategy. Even if you cannot max out immediately, increasing contributions by even $50–$100 per month compounds significantly over 30 or more years. Consider automating contributions at the start of each year rather than waiting until the tax deadline, since money invested earlier has more time to compound.

Minimizing investment costs is equally important. A 1% higher expense ratio (fees) on mutual funds can reduce a final balance by 20–25% over 30 years because fees compound just like returns — in reverse. Low-cost index funds tracking broad market indices typically charge 0.03%–0.20% annually, far below the 0.5%–1.5% common in actively managed funds.

Asset location — deciding which assets to hold in tax-advantaged accounts — can further improve after-tax outcomes. High-return, high-turnover investments like small-cap stocks or REITs benefit most from tax-deferred growth, while tax-efficient index funds are better suited for taxable brokerage accounts. Placing the highest-growth assets inside your IRA maximizes the benefit of tax deferral.

Avoiding early withdrawals is critical. Every dollar withdrawn before age 59½ not only incurs a 10% penalty and taxes but also permanently removes that dollar from decades of future compounding. Building an emergency fund outside the IRA reduces the temptation to tap retirement savings in a crisis.