The $900,000 401(k) Move at 62 That Adds $190,000 in Social Security by 80: Start Emptying It Before Claiming
Draining a 401(k) before claiming Social Security sounds counterintuitive, but for a 62-year-old sitting on $900,000, the order of those two moves determines how much tax gets paid, how much Medicare costs, and whether the math still holds at 80.
This post may contain links from our sponsors and affiliates, and Flywheel Publishing may receive compensation for actions taken through them.
A 62-year-old with $900,000 in a traditional 401(k) plans to live on his savings and hold off on Social Security until 70. His reasoning: shrink the account before required minimum distributions (RMDs) arrive and lock in a bigger check. The same question keeps coming up on Reddit’s r/retirement forum, where one retiree asked whether to “take Social Security a bit early or draw down 401(k)?”
The two paths produce different outcomes from 62 to 80. In this example, delaying Social Security means a bigger check and a smaller tax bill. It also leaves less money in the 401(k) at 80.
Same Saver, Same Budget, Two Claiming Ages
Both paths use identical inputs:
- The saver is a single filer under 2026 rules, with a $16,100 standard deduction and the 22% bracket starting above $50,400. The additional standard deduction after 65 is excluded, so the tax figures are approximate.
- Annual spending is $70,000 after federal tax, in today’s dollars. Brackets and benefits rise with inflation, including the 3.6% COLA set for 2027, so everything stays flat in real terms.
- The 401(k) earns a 4% annual return after inflation, with withdrawals taken at the end of each year.
- The example assumes a $3,000 monthly benefit at full retirement age (FRA) 67. Claiming at 62 pays 70%, or $2,100. Waiting until 70 adds 24%, for $3,720.
| Annual figures | Delay to 70 | Claim at 62 |
|---|---|---|
| 401(k) withdrawal, 62 to 69 | $78,423 | $52,157 |
| 401(k) withdrawal, 70 to 79 | $28,957 | $52,157 |
| Federal tax, 62 to 69 | $8,423 | $7,357 |
| Federal tax, 70 to 79 | $3,597 | $7,357 |
| Social Security | $0, then $44,640 | $25,200 |
| 401(k) balance at 80 | $405,939 | $485,647 |
Where the $190,000 Figure Comes From
From 70 through 79, the larger check pays $1,620 more each month, which adds up to $194,400 in extra benefits. That gross figure is the headline number. But the early claimant had already collected $201,600 before 70. Total benefits through 80 come to $446,400 for the delayer and $453,600 for the early claimant.
Tax Cascade Favors the Delayer
Over the 18 years, the delayer pays $103,354 in federal tax, compared with $132,426 for the early claimant. That saves him $29,072.
The early claimant has 85% of his benefit taxed every year and stays in the 22% bracket for all 18 years. The delayer pays 22% during the bridge years, when he has no benefit income. After 70, his small withdrawals keep him in the 12% bracket even though part of his larger check becomes taxable.
Neither path triggers IRMAA. The delayer’s income tops out at $78,423, well below the $109,000 single threshold.
Why the Early Claimer Still Has More at 80
The delayer pulls out the most money in his 60s, when it would have had the longest time to compound. By 70 his balance is down to $509,105. At 80 he trails by $79,708 before taxes on future withdrawals.
The RMD argument never comes into play at this balance. At 75, required distributions run about $18,803 and $25,665, both below what each path already withdraws. Because the delayer withdraws $23,200 less per year after 70, he closes the gap by about age 84.
When Emptying the 401(k) First Pays Off
Drawing down the 401(k) first works like longevity insurance. You give up some wealth at 80 in exchange for higher guaranteed income for life. It pays off if you expect to live past your mid-80s, if you are the higher earner in a marriage (your larger check becomes your spouse’s survivor benefit), or if your balance is big enough that RMDs would push you into IRMAA surcharges.
- Pull your Social Security statement and calculate your own 70% and 124% figures. Multiply the monthly difference by 120 to get your 70-to-80 return, then subtract the benefits you would collect before 70.
- Use the bridge-year buffer. The delayer has $30,577 of room below the 2026 IRMAA threshold for Roth conversions. Future thresholds will change, and income at 63 generally determines premiums at 65.
- Rerun the crossover with a lower return assumption. Weaker returns shrink the compounding the delayer gives up, which moves his break-even age earlier.
Contact [email protected] for any questions or corrections.
Gerelyn Terzo is the author of dividend investing handbook "Dividend Investing Strategies: How to Have Your Cake & Eat It Too." A veteran financial journalist, she covers agri-finance for outlets like Global AgInvesting and the broader stock market and personal finance for 24/7 Wall Street. She began at CNBC and later helped launch Fox Business in New York. Gerelyn currently resides in Woodland Park, Colorado and dabbles in nature photography as a hobby.
