At 69, She Found a Way to Delay RMDs and Keep More Benefits Untaxed

She is 69, has been at the same company for decades, and has zero interest in retiring. Her paycheck still arrives every two weeks, her 401(k) keeps compounding, and her Social Security check lands on top of it. The boomer instinct to work runs deep, even as headlines about AI reshaping offices push some peers toward earlier exits.

One online thread captured the worry well: a woman loved her work, did not want to retire, and could not figure out whether staying employed would help or hurt her tax picture once mandatory retirement account withdrawals kicked in. The answer turns out to be unusually generous to people who keep working past age 73.

The Rule That Rewards Staying on the Payroll

Required minimum distributions (RMDs), the forced annual withdrawals the IRS pulls from pre-tax retirement accounts, begin at age 73 for anyone born between 1951 and 1959, and at age 75 for anyone born in 1960 or later. At 69, she is not there yet. The rule that matters sits a few years out: if she is still employed by the company that sponsors her 401(k), and she does not own more than 5% of that business, she can delay required withdrawals from that specific plan for as long as she stays on the payroll.

At 73, 74, 78, whenever, the IRS will not force a taxable withdrawal from her current 401(k) while she is still working there. That is the lever. Everything else flows from it.

Why That Keeps More of Her Social Security Untaxed

Social Security has a quirk called the tax torpedo. Once combined income crosses modest thresholds, each extra dollar of reported income can pull up to 85% of her Social Security benefit into the taxable column. That 85% represents the maximum share of her benefit the formula can expose to ordinary income tax.

A forced RMD she does not need for living expenses is the classic trigger. Picture a retiree with a $30,000 Social Security benefit and a $40,000 forced withdrawal she would rather have left invested. That extra income can push tens of thousands of her Social Security into taxable territory and lift her Medicare premiums into a higher Income-Related Monthly Adjustment Amount (IRMAA) tier, where Part B and Part D surcharges stack on top of the base premium. Skipping the forced withdrawal keeps reported income lower, keeps more of her Social Security untaxed, and helps her Medicare premium stay in the cheapest bracket. With the 2026 cost-of-living adjustment (COLA) running at 2.8%, every dollar of benefit she shields from taxation is worth protecting.

The Sharp Edges Worth Knowing Now

The exception is narrower than it sounds, and the details decide whether the strategy works:

1. Current employer only. The delay applies to the 401(k) at the job she is working today. Old 401(k) balances at former employers still require RMDs starting at 73 or 75, which is one reason people roll old plans into the current one before RMD age.
2. IRAs are not covered. Traditional IRA balances must begin distributing on schedule even if she is still working full time. If she has a sizable IRA, that bucket will generate the taxable income she is trying to avoid.
3. Ownership disqualifies it. Anyone owning more than 5% of the company is excluded. This exception exists strictly for rank-and-file employees.
4. Retirement flips the switch. Once she leaves the job, RMDs from that 401(k) turn on, generally by April 1 of the year after she retires. A layoff or reorg that pushes her out ends the shelter.

What She Should Actually Do With This

Two moves matter most. First, before she turns 73, check whether her plan accepts rollovers from old 401(k)s and IRAs. Consolidating eligible balances into the current employer’s plan can extend the shelter over a much larger pile of money. Second, treat continued employment as the tax strategy itself. The day she retires, the clock starts, and deferred income can land in one or two large tax years if she is not careful.

The hardest mistake to undo is retiring on impulse, then watching a full year of forced withdrawals collide with Social Security and Medicare in ways that cannot be unwound. Every situation has its own wrinkles, so the specific numbers in her plan documents and tax return should drive the final call.

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