RMD Rules, Explained: The Withdrawals the IRS Will Not Let You Skip

Nothing in a traditional retirement account is tax-free. It is tax-deferred, and deferred means the bill eventually comes due. A required minimum distribution, or RMD, is how the IRS collects: once you reach the trigger age, currently in your mid-70s depending on your birth year, you must withdraw a minimum amount from those accounts every year and pay ordinary income tax on it, whether you need the money or not.

Why forced withdrawals exist

The deal behind every pre-tax contribution was always temporary: skip the tax now, pay it later. Without a deadline, "later" could mean never, with balances compounding untaxed for a lifetime and then passing to heirs. RMDs are the expiration date on the deferral. They do not force you to spend the money, only to move it out of the shelter and through your tax return. Plenty of retirees withdraw the required amount, pay the tax, and reinvest the rest in a regular brokerage account the same week.

The divisor mechanic, in words

Each year's required amount is a simple division. Take the account balance on December 31 of the previous year, divide it by a life-expectancy factor the IRS publishes in a table, and the result is that year's minimum. Because the factor shrinks as you age, the required slice of the account grows: it starts as a small single-digit percentage of the balance and climbs steadily through your 80s and 90s. Two things follow from the mechanic. First, the RMD is recalculated every year from a fresh balance, so market swings change the dollar amount. Second, it is a floor, never a ceiling: you can always take more. There is also a first-year quirk: the initial RMD can be postponed a few months into the following year, but doing so stacks two distributions into one tax year, which can shove income into a higher bracket. The RMD calculator carries the current IRS factors and shows your required amount by age.

Which accounts have them, and which never do

• Yes: traditional IRAs, SEP and SIMPLE IRAs, and pre-tax workplace plans such as 401(k), 403(b), and 457 accounts.
• No, ever, during your lifetime: Roth IRAs. The tax was paid on the way in, so the IRS has no bill to collect, and under a recent rule change Roth balances inside workplace plans are no longer subject to lifetime RMDs either.
• Special cases: if you are still working past the trigger age, your current employer's plan can often wait until you actually retire (IRAs get no such grace). Inherited accounts run on their own, generally faster, clock with rules that depend on who inherited and when.

One more wrinkle worth knowing: IRA RMDs can be aggregated and taken from any one IRA, while workplace plans generally each demand their own separate withdrawal. Consolidating old accounts before the RMD years begin makes every subsequent year simpler.

The charitable escape hatch

For people who give to charity anyway, there is a clean exit: a qualified charitable distribution sends money directly from an IRA to a charity, satisfies some or all of that year's requirement, and never lands on your return as income. That last part matters more than it sounds, because RMD income can raise Medicare premiums and pull more of your Social Security into the taxable column; income that never appears avoids all of it. The move has its own age rule and an annual cap, and the transfer must go custodian-to-charity rather than through your checking account, so it takes one phone call to set up properly.

Miss one and the penalty is severe

The penalty for skipping an RMD is one of the harshest in the tax code: a meaningful slice of the amount you failed to withdraw, gone. The rules soften it substantially if you correct the miss quickly, and the IRS can waive it entirely for reasonable errors when you withdraw the shortfall and file the form asking for relief. The practical defense is boring: set the withdrawal on autopilot with your custodian in January rather than remembering it in December.

The planning window before RMDs arrive

The most interesting RMD planning happens years before the first one. Many retirees pass through a low-income valley between the last paycheck and the first required distribution, and those years are the classic window for Roth conversions: moving money from traditional to Roth on purpose, paying tax at the valley's low rates, and shrinking every future RMD in the process. Others simply start withdrawals earlier and more evenly than required, so no single year's tax bill spikes. Both are sequencing questions, and the retirement withdrawal calculator is built for exactly that kind of what-if.

Deadlines are easier with the balances in view

RMDs are computed account by account, which is one more reason to keep every retirement balance in a single picture. Stoia holds the full inventory, so the December 31 numbers that drive next year's math are never a scavenger hunt.