Forgotten 401(k) and Required Minimum Distributions

A forgotten 401k RMD is a required minimum distribution from a workplace plan you stopped watching. Once you reach RMD age, the IRS generally expects a yearly withdrawal from pre-tax retirement accounts. An old 401(k) at a former employer is still in that picture. Forgetting the login does not pause the rule.

We make Asset Recovery: Lost 401k, a free app that opens official search tools from a former employer and the years you worked. You cannot take a required withdrawal from a plan you have not found. This page is general education, not tax advice, and it does not promise an account will be found.

When RMDs start

For 2026, required minimum distributions generally start at age 73 for people born from 1951 through 1959. People born in 1960 or later are scheduled to start at 75, under a later change in the law. The first withdrawal can sometimes wait until April 1 of the year after you reach that age. Later withdrawals are generally due by December 31 each year. Your tax professional, and the plan, confirm which date is yours.

A useful workplace exception: if you are still working at the employer that sponsors the plan, and you are not a 5 percent owner, you may be able to delay RMDs from that current plan until you retire. A plan at a job you already left does not get that delay. A forgotten account from a former employer is the one that still needs attention.

Roth 401(k) accounts generally do not require lifetime RMDs for the original owner. That change came with SECURE 2.0 and applies starting in 2024. Before then, a Roth 401(k) in a workplace plan could still face RMDs, unlike a Roth IRA. A traditional, pre-tax 401(k) still can. The administrator can tell you which type you had.

What a missed year can cost

The penalty for not taking an RMD is an excise tax on the amount you should have withdrawn and did not. Under current rules that tax is 25 percent of the shortfall. It can drop to 10 percent if the missed amount is corrected in the IRS correction window. The plan and a tax professional handle the calculation and any Form 5329 filing. This article does not calculate a withdrawal.

A forgotten 401k RMD is one reason to look even when you are sure the balance is small. Fees can also keep coming out of an unread account. That cost is in fees on a forgotten 401(k). Cashing out the whole balance on purpose is a different, taxable choice. Cashing out an old 401(k): taxes and penalties covers it.

Find every former employer

Each old plan is separate. The current job's delay does not cover the hospital job or the company you left at 60. List every employer. How to find a lost 401(k) from a previous job is the order. You do not need the account number. Find an old 401(k) without the account number covers how to use the company name, the years, and a W-2 if you have one.

The Department of Labor Lost and Found has focused early records on people who have reached about age 65, which overlaps this age group, and an empty result is still possible. Read the limits in Department of Labor Retirement Savings Lost and Found. Other free pages are in free places to look for a lost 401(k). A renamed company still needs the old name. 401(k) when a company closes, merges, or is renamed covers that.

Asset Recovery: Lost 401k does not calculate RMDs and does not send the withdrawal. You enter former employers. The app opens the official search. Your Social Security number, if a government site needs it, stays on that site. Searching is free. The administrator, once you reach them, is who figures the required amount for that plan.

For a shortlist of products, see apps to find a lost 401k. Then run the old jobs through Lost 401k so a forgotten 401k RMD is tied to a real plan.

Start on our Asset Recovery page or download Lost 401k.