Millions of Americans spend decades building a retirement account, then hit a milestone that forces them to start pulling money out whether they need it or not.
It's called a required minimum distribution, or RMD, and it catches plenty of people off guard the first time it lands.
Once you reach a certain age, the IRS requires you to withdraw a minimum amount from traditional IRAs, 401(k)s, and similar tax-deferred accounts each year.
You only get a choice about how much extra, if anything, you pull beyond the minimum.
The starting age has shifted in recent years, which is part of why so many people are confused.
For most retirees today, the trigger age is 73.
If you were born in 1960 or later, it moves to 75.
The rules changed under recent legislation, so anyone relying on advice from a few years ago may be working off outdated numbers.
The amount you must withdraw isn't a flat figure.
It's calculated by dividing your account balance at the end of the previous year by a life expectancy factor the IRS publishes.
The older you get, the larger the percentage you're required to take.
That's why the same account can produce a much bigger mandatory withdrawal at 80 than at 73.
This matters for your budget in two very real ways.
First, the withdrawal itself is taxable income.
A big RMD can push you into a higher bracket, increase what you pay for Medicare premiums, and even affect how much of your Social Security is taxed.
Second, if you don't actually need the cash, you're forced to move it into a regular taxable account, where future growth no longer gets the same tax shelter.
The penalty for not taking the required amount is a steep excise tax on the shortfall, and it can stack up fast if you skip more than one year.
The good news is that the IRS has sometimes waived the penalty for people who fix the mistake quickly and file the right form, but you don't want to test that.
A few practical moves can soften the blow.
If you're still working and contributing to a workplace plan, you may be able to delay RMDs on that specific account until you retire, depending on how the plan is set up.
Converting some money to a Roth earlier in retirement, when your income is lower, can reduce future mandatory withdrawals.
And if you're charitably inclined, sending part of your RMD directly to a qualified charity can satisfy the requirement while keeping that amount out of your taxable income.
The simplest defense is planning before the deadline, not after.
Check your account balance each December, confirm the life expectancy factor for your age, and figure out the exact dollar amount you owe.
Automating the withdrawal helps, but it won't stop you from under-withdrawing if your balance changed during the year.
If your retirement savings sit mostly in tax-deferred accounts and you've been treating them as untouched money, this is the year to run the numbers.
A short conversation with a tax professional often costs far less than the penalty for getting it wrong.
The bottom line: RMDs aren't a punishment, they're the bill coming due on decades of tax deferral.
Treat them as a budgeting line item you plan around, not a surprise you react to.
Final Thoughts
A little homework now can keep more of your money working for you instead of the tax collector.