RMD Calculator

Understanding RMDs

Required Minimum Distributions ensure that tax-deferred retirement savings are eventually taxed during the account owner's lifetime.^[1] The IRS publishes life expectancy tables that determine the divisor used to calculate each year's minimum. This calculator uses the current Uniform Lifetime Table (updated 2022) and accounts for the SECURE 2.0 age changes. Plan your withdrawals alongside the Tax Bracket Calculator to manage your tax burden.

RMD by Age (Uniform Lifetime Table, $500K balance)

RMD Strategies for Tax-Efficient Retirement Income

The mechanics of RMDs are straightforward — divide your balance by the IRS factor — but the strategic layer is where real money is saved or lost. Retirees who plan their withdrawal sequence across multiple account types (traditional, Roth, taxable) can reduce their lifetime tax bill by tens of thousands of dollars compared to those who simply take the minimum each year.

The most common mistake is treating RMDs as a ceiling rather than a floor. Many retirees take only the required minimum, leaving large balances that generate even larger RMDs in later years. At age 73, the RMD is roughly 3.8% of the balance. By age 85, it climbs to 6.25%, and by 90, it exceeds 8%. A retiree with $1 million at 73 faces an $18,868 RMD, but if the account grows to $1.2 million by age 85 despite withdrawals, the RMD balloons to $75,000 — potentially pushing them into a higher tax bracket and triggering Medicare surcharges.

Roth Conversion Ladder and RMD Reduction

One of the most powerful strategies is converting portions of traditional IRA balances to Roth IRAs during lower-income years — typically between retirement and when Social Security and RMDs begin. These conversions are taxable events, but they permanently remove assets from future RMD calculations. A retiree who converts $50,000 per year from ages 65 to 72 shifts $400,000 into a Roth IRA that has no lifetime RMDs, saving roughly $16,000–$32,000 in annual forced withdrawals starting at 73.

The optimal conversion amount fills the current tax bracket without spilling into the next one. If a married couple's taxable income before conversions is $60,000 and the 22% bracket ends at $96,950, they could convert up to $36,950 at the 22% rate. Beyond that threshold, conversions would be taxed at 24%. This bracket-filling strategy requires recalculation each year based on actual income, deductions, and any changes to tax law.

Multiple Account RMD Aggregation Rules

The aggregation rules create strategic flexibility for IRA owners. If you hold three IRAs with different investment profiles, you can take the entire combined RMD from whichever account it makes the most sense to draw down — perhaps the one with the highest-cost investments or the one holding over-weighted positions you want to rebalance.

QCDs: Using RMDs for Tax-Free Charitable Giving

Qualified Charitable Distributions allow IRA owners aged 70½ or older to transfer up to $105,000 per year (2025 limit, indexed for inflation) directly from their IRA to a qualified charity. The QCD satisfies the RMD requirement but is excluded from taxable income entirely. This is more advantageous than taking the distribution, paying tax, and then making a charitable deduction — especially after the 2017 tax reform doubled the standard deduction, making itemizing less common.

For a retiree in the 22% tax bracket with a $25,000 RMD who donates $10,000 annually to charity, using QCDs saves $2,200 per year in federal income tax compared to taking the RMD as income and donating separately without itemizing. Over 15 years of retirement, that strategy saves $33,000 in taxes while maintaining the same charitable giving level.

RMD Timing and Penalty Avoidance

Your first RMD can be delayed until April 1 of the year following the year you turn 73 (or 75 for those born in 1960 or later). However, this deferral is a trap for the unwary: delaying means you must take two RMDs in the same calendar year — your deferred first-year RMD and your current-year RMD — which can nearly double your taxable income for that year. A retiree with a $600,000 balance who defers would face roughly $45,000 in combined RMDs in one year instead of spreading $22,000 across two years.

The SECURE 2.0 Act reduced the missed-RMD penalty from 50% to 25%, and further to 10% if corrected within two years. While this is a significant reduction, even the 10% penalty on a $30,000 missed RMD is $3,000 — an entirely avoidable loss. Setting up automatic distributions with your custodian eliminates this risk. Most brokerages allow you to schedule RMDs as monthly, quarterly, or annual payments directly to your bank account.

Impact of RMDs on Medicare Premiums

RMDs count as modified adjusted gross income (MAGI) for Medicare Part B and Part D premium calculations. The Income-Related Monthly Adjustment Amount (IRMAA) creates surcharge brackets that can significantly increase healthcare costs. A single filer whose MAGI exceeds $106,000 (2025 threshold) pays $244.60 per month for Part B instead of the standard $185 — an extra $715 per year. At $500,000 or above, the surcharge reaches $419.30 per month, adding $2,812 annually. Strategic Roth conversions in pre-RMD years can keep MAGI below these thresholds throughout retirement, saving thousands in Medicare premiums over a 20+ year retirement.

Inherited IRA RMD Rules After SECURE Act

The SECURE Act of 2019 eliminated the "stretch IRA" for most non-spouse beneficiaries, replacing it with a 10-year distribution rule. Non-spouse beneficiaries who inherit an IRA must now withdraw the entire balance within 10 years of the original owner's death. The IRS clarified in 2024 that if the original owner had already begun RMDs, the beneficiary must take annual distributions during the 10-year window, not just empty the account by year 10. Eligible designated beneficiaries — surviving spouses, minor children, disabled or chronically ill individuals, and beneficiaries not more than 10 years younger than the decedent — are exempt from the 10-year rule and can still use life expectancy distributions.

Year-End Planning Checklist

As December approaches, review your RMD status with these steps: confirm your custodian has your correct date of birth on file, verify the prior December 31 balance used for the calculation, check whether you have already satisfied the full RMD amount through year-to-date withdrawals, evaluate whether additional withdrawals beyond the RMD make sense for bracket management, and consider whether a QCD would be more tax-efficient than a standard distribution. Most custodians will send a reminder notice, but ultimately the responsibility falls on the account owner to ensure the full RMD is distributed by December 31.

How to Use This Calculator

1. Enter your age — Your age as of December 31 of the distribution year.
2. Enter account balance — Total balance as of December 31 of the prior year.
3. Review your RMD — Minimum withdrawal amount and deadline.

Tips and Best Practices

See also: Retirement · Roth Conversion · Tax Brackets · Social Security