RMDs on a $500K IRA at 5% Growth

23-year schedule, ages 73–95 · First RMD: $18,868

$18,868
first RMD at age 73
AgeYear-Start BalanceRMDEst. Tax (22%)Year-End Balance
73$500,000$18,868$4,151$505,189
74$505,189$19,811$4,358$509,646
75$509,646$20,717$4,558$513,375
76$513,375$21,661$4,766$516,300
77$516,300$22,546$4,960$518,441
78$518,441$23,566$5,184$519,620
79$519,620$24,627$5,418$519,743
80$519,743$25,730$5,661$518,714
81$518,714$26,738$5,882$516,575
82$516,575$27,923$6,143$513,084
83$513,084$28,988$6,377$508,301
84$508,301$30,256$6,656$501,948
85$501,948$31,372$6,902$494,105
86$494,105$32,507$7,152$484,678
87$484,678$33,658$7,405$473,570
88$473,570$34,567$7,605$460,953
89$460,953$35,733$7,861$446,482
90$446,482$36,597$8,051$430,379
91$430,379$37,424$8,233$412,602
92$412,602$38,204$8,405$393,118
93$393,118$38,923$8,563$371,906
94$371,906$39,148$8,613$349,396
95$349,396$39,258$8,637$325,645

Tax estimate uses a flat 22% marginal rate for illustration. Actual tax depends on your full income picture.

Required Minimum Distributions are the IRS mechanism to recapture deferred taxes from traditional IRAs, 401(k)s, and similar pre-tax accounts. Starting at age 73 (under SECURE 2.0), you must withdraw a minimum each year — or face a 25% excise tax on any shortfall.

The formula: divide your prior December 31 account balance by the distribution period factor from IRS Publication 590-B’s Uniform Lifetime Table. At 73, that factor is 26.5. At 80, it’s 20.2. The factor decreases every year, so a larger fraction of the remaining balance is required each time.

Portfolio growth and RMDs pull in opposite directions. If the account earns more than the RMD withdrawal rate, the balance can rise in the early years — but larger balances produce larger RMDs. The crossover point where withdrawals exceed growth typically arrives in the late 70s or early 80s, depending on the return rate.

Every RMD dollar is ordinary income, which matters in two ways: each dollar can make more of your Social Security benefit taxable, and large RMDs can trigger IRMAA Medicare premium surcharges based on your MAGI two years prior. Roth conversions before 73 are the most reliable lever to reduce future RMDs — shrink the traditional balance, shrink the mandatory withdrawal.

These schedules compound the starting balance at the stated annual growth rate, then apply IRS Uniform Lifetime Table factors each year. They assume a single account owner with no inherited IRA rules. Use these as a planning baseline — actual RMDs depend on your December 31 balance.

Run your own numbers →

Educational purposes only. This tool illustrates mathematical concepts related to long-term financial planning and is not financial advice. Numbers are computed from standard formulas and do not account for individual tax situations, inflation, or sequence-of-returns risk. Consult a qualified financial professional before making investment decisions. Data: 2026 tax year (verified 2026-06-11).