Millions of Americans spend decades building a retirement nest egg, and then the IRS shows up with a bill for money that never landed in their checking account.
It's called a required minimum distribution, or RMD, and it's one of the most quietly expensive rules in personal finance.
Once you hit 73, the government stops letting your tax-deferred retirement accounts sit untouched.
Traditional IRAs, 401(k)s, and most employer plans now require you to withdraw a minimum amount every year, whether you need the cash or not.
The calculation is based on your account balance at the end of the prior year divided by a life expectancy factor the IRS publishes.
That withdrawal counts as ordinary income.
So if you're 75 with a $600,000 IRA, you might be forced to pull out roughly $25,000 in a single year, and every dollar of it gets added to your taxable income.
For retirees who carefully planned around a modest budget, that can push them into a higher bracket, increase what they pay for Medicare premiums, and even trigger taxes on Social Security benefits.
The penalty for skipping an RMD is brutal.
The IRS charges 25% of the amount you should have withdrawn, and that drops to 10% only if you catch the mistake and fix it quickly.
Miss a $25,000 distribution and you're looking at a $6,250 penalty on top of the tax you still owe.
There's a common misconception that RMDs apply to all retirement accounts.
Roth IRAs have no lifetime distribution requirement, which is why they've become a favorite tool for wealthy savers planning their estate.
Roth 401(k)s used to be exempt too, but that changed starting in 2024.
Meanwhile, if you're still working past 73 and don't own more than 5% of the business, your current employer's 401(k) may be exempt until you actually retire.
Timing matters more than most people realize.
You can delay your very first RMD until April 1 of the following year, but if you do, you'll be forced to take two distributions in the same calendar year.
That double-up can spike your income and cause a bigger tax hit than spreading the withdrawals out.
Qualified charitable distributions let you send up to $105,000 per year directly from an IRA to charity, and that money never touches your taxable income.
Converting part of a traditional IRA to a Roth during low-income years shrinks future RMDs.
And for those who don't need the cash, reinvesting the after-tax portion into a regular brokerage account keeps the money growing.
The bigger point is that RMDs aren't really a retirement problem.
They're a tax planning problem, and by the time you're 73, most of your options have already narrowed.
The smartest approach is to start modeling these withdrawals in your late 50s and early 60s, while you still have room to maneuver.
Final Thoughts
Waiting until the IRS sends a reminder usually means paying more than you had to.