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RMD Calculator: How Much Must You Withdraw From Retirement Accounts?

How much must you withdraw from retirement?

What This Does

Required Minimum Distributions (RMDs) are the IRS-mandated annual withdrawals you must take from traditional IRAs, 401(k)s, and most other tax-deferred retirement accounts starting at age 73 (under the SECURE 2.0 Act, effective 2023). Missing an RMD, or withdrawing too little, triggers a 25% excise tax on the shortfall β€” one of the steepest penalties in the tax code, reduced from 50% by SECURE 2.0. The RMD formula is straightforward: divide your account balance as of December 31 of the previous year by your life expectancy factor from the IRS Uniform Lifetime Table. At age 73, the factor is 26.5 β€” so a $500,000 IRA balance generates an RMD of $18,868. At 80, the factor is 20.2, producing an RMD of $24,752 on the same balance. What makes RMD planning complex is the tax impact: every dollar withdrawn is ordinary income. Large RMDs can push you into higher tax brackets, trigger Medicare IRMAA surcharges (which add $70–$420+ per month to Medicare premiums), make Social Security benefits taxable, and create unexpected state tax bills. Strategic planning β€” Roth conversions before RMDs begin, qualified charitable distributions (QCDs), and coordinating with other income sources β€” can significantly reduce the tax burden. This calculator shows your current year RMD, estimated tax impact, and a 10-year projection of declining balances and growing withdrawals.

When Should You Use This?
  • β†’Approaching age 73 and need to know when and how much to start withdrawing
  • β†’Already taking RMDs and want to verify your calculation is correct
  • β†’Planning Roth conversions to reduce future RMD amounts
  • β†’Calculating the tax impact of RMDs on total retirement income
  • β†’Managing an inherited IRA with its own RMD rules
Example Scenario

Robert turns 73 in 2024. His traditional IRA balance on December 31, 2023 was $620,000. His RMD for 2024: $620,000 Γ· 26.5 = $23,396. Combined with $24,000 in Social Security and a $12,000 pension, his total income is $59,396. The calculator shows this pushes $10,200 of his Social Security into taxable status and places him in the 22% bracket. A $30,000 Roth conversion in the prior year would have reduced his current IRA balance and this year's RMD by $1,132.

🏦RMD Calculator

Required Minimum Distribution Calculator

Enter your Dec 31 prior-year balance, age, and income to calculate your 2026 RMD, estimated tax impact, and 10-year projection. Results update live.

Your RMD Details

Use Dec 31 balance from last year's statement

RMDs begin at age 73 (SECURE 2.0)

Social Security + pension + other (for tax estimate)

Used for 10-year projection

Other IRA/401k balances to include in projection

Results are estimates only and do not constitute financial, tax, or legal advice. Always consult a qualified professional before making financial decisions.

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