RMD Calculator 2025

How and When to Use This Calculator

When should you use this tool?

• Planning your annual retirement income and tax strategy for the upcoming year.
• Checking if you need to take a distribution this year based on your current age.
• Estimating how your account balances might change over time after your mandatory withdrawals.
• Comparing different estimated rates of return to see how they impact your end-of-year balance.

How the tool works:

You provide your birth year and the account balance from the end of last year. The calculator looks up your age in the IRS Uniform Lifetime Table to find your specific life expectancy factor. It then divides your balance by that factor to estimate your required withdrawal amount for the year.

Limitations and Accuracy:

This tool provides an estimate based on the standard IRS Uniform Lifetime Table. If your spouse is your sole beneficiary and is more than 10 years younger than you, a different table applies which will result in a lower required withdrawal. This calculator is for educational purposes and you should always consult a tax professional for your exact filing requirements.

A Guide to Required Minimum Distributions

Retirement accounts are great for building wealth because of their tax advantages. The IRS does not allow these funds to grow tax-deferred forever though. The government eventually requires you to begin withdrawing a portion of your savings so it can be taxed. These mandatory annual withdrawals are known as Required Minimum Distributions.

Figuring out the rules around RMDs can be tricky, especially with recent changes like the SECURE 2.0 Act. Missing a withdrawal or taking the wrong amount can lead to steep penalties. This guide covers what you need to know about calculating and managing your RMDs.

What Accounts Require RMDs?

Not all retirement accounts are treated equally under IRS rules. RMDs generally apply to tax-deferred accounts where you received a tax break upon contribution. You must take RMDs from the following:

• Traditional IRAs: The most common account subject to RMDs.
• SEP IRAs: Simplified Employee Pension plans often used by self-employed individuals.
• SIMPLE IRAs: Savings Incentive Match Plan for Employees.
• 401(k) Plans: Employer-sponsored plans (Traditional).
• 403(b) Plans: Plans for nonprofits and public schools.
• 457(b) Plans: Deferred compensation plans for state and local government employees.
• Profit-Sharing Plans: Employer-funded retirement plans.

Important Exception: Starting in 2024 because of the SECURE 2.0 Act, Roth 401(k) accounts are no longer subject to RMDs during the account owner's lifetime. Roth IRAs have always been exempt from lifetime RMDs. Inherited Roth accounts are generally still subject to distribution rules.

When Must You Start?

The age at which you must begin taking withdrawals has changed several times in recent years. Understanding your specific starting age is crucial.

The Still Working Exception: If you are still employed and have a 401(k) or 403(b) with your current employer, you might be able to delay RMDs from that specific account until you retire, regardless of your age. This exception generally does not apply if you own more than 5% of the company or to funds held in IRAs.

How the Calculation Works

The math behind your Required Minimum Distribution is fairly straightforward, although the variables can change annually. The formula is the account balance as of December 31 of the previous year divided by your life expectancy factor.

There are two main parts to this calculation:

1. Prior Year Balance: You must use the account balance as of the very last day of the previous year. To calculate your 2025 RMD, you look at your account statement from December 31, 2024. Market changes occurring in the current year do not affect the current year's RMD.
2. Life Expectancy Factor: This number comes from IRS tables. As you get older, this factor decreases, which causes the percentage of your account that you must withdraw to increase.

Understanding the IRS Tables

The IRS provides three distinct life expectancy tables. Using the wrong one can lead to withdrawing too little and triggering penalties, or withdrawing too much and increasing your tax bill unnecessarily.

1. The Uniform Lifetime Table (Table III)

This is the most commonly used table. It is used by almost all unmarried IRA owners, and by married owners whose spouses are not more than 10 years younger than them. Our calculator above defaults to this table.

2. The Joint Life and Last Survivor Expectancy Table (Table II)

This table is used only if your spouse is your sole primary beneficiary for the entire year and is more than 10 years younger than you. Because this table factors in the longer combined life expectancy of a couple with a large age gap, it yields a higher divisor and a lower RMD. If you qualify for this, consult a tax professional to calculate your exact payment.

3. The Single Life Expectancy Table (Table I)

This table is generally used by beneficiaries of inherited IRAs rather than original account owners.

Key Deadlines

Missing a deadline is a common and costly mistake.

• The First Year Rule: For your very first RMD year, you have a one-time grace period. You can delay that first withdrawal until April 1st of the following year. Doing so means you will have to take two distributions in that second year, which could push you into a higher tax bracket.
• Subsequent Years: For all years after your first, the deadline is strictly December 31st.

Tax Implications

RMDs are treated as ordinary income. This means they are taxed at your marginal income tax rate, not the lower capital gains rate. RMDs can increase your taxable income significantly, which might trigger other costs like higher tax brackets, Social Security taxation, and Medicare IRMAA surcharges.

Strategies to Reduce Taxes

While you cannot avoid RMDs entirely, there are strategies to help manage their tax impact.

Qualified Charitable Distributions

A Qualified Charitable Distribution allows IRA owners aged 70.5 or older to transfer funds directly from their IRA to a qualified charity. This distribution counts toward your RMD but is excluded from your taxable income. You do not need to itemize to benefit from this, making it an effective way to lower your adjusted gross income.

Qualified Longevity Annuity Contracts

You can use a portion of your IRA funds to purchase a Qualified Longevity Annuity Contract. The money in the contract is removed from your RMD calculation until the annuity payments begin. This defers taxes to a later date.

Roth Conversions

Converting Traditional IRA funds to a Roth IRA requires paying taxes now, but it eliminates RMDs on those funds in the future. This strategy is best implemented in years where your income is lower, before RMDs begin.

The Penalty for Missed RMDs

The penalty for failing to take an RMD is 25% of the amount not withdrawn. If you correct the error promptly and file the appropriate forms with the IRS, the penalty can sometimes be reduced to 10%. Many custodians offer automatic withdrawal services to ensure you never miss a deadline.

Aggregation Rules

If you have multiple retirement accounts, how you take your RMDs matters:

• IRAs: You can calculate the RMD for each IRA separately, add them up, and withdraw the total amount from just one IRA or any combination of them.
• 401(k)s and 403(b)s: These accounts generally do not allow aggregation. You must calculate and withdraw the specific RMD amount from each plan separately.

Frequently Asked Questions