Picture a man we’ll call Dan. He spent 35 years running a small electrical contracting business, wiring new construction, replacing old panels, and building a reputation his customers trusted. Every April, his accountant helped him keep his reported net self-employment income modest. Aggressive equipment write-offs, vehicle deductions, a home office, the occasional cash job. It shaved thousands off his self-employment tax bill every year. Now Dan is 67, ready to hand the business to a younger foreman, and the Social Security benefit estimate he pulled up online is a lot smaller than he expected.
He is not alone. One retiring contractor recently posted in an online forum that his benefit came in around $1,900 a month when he was expecting closer to $2,700, and could not understand why. The answer, in almost every case, is buried in the earnings record.
Skilled trades are heading into a retirement wave. A recent industry analysis flagged that roughly 2.1 million skilled-trades jobs could go unfilled by 2030, with potential economic losses of up to $1 trillion a year, and more than one in five construction workers is already over 55. A lot of Dans are about to run into the same surprise.
The Earnings Record Is the Whole Ballgame
Social Security retirement benefits are calculated from someone’s highest 35 years of indexed earnings, averaged and divided by 12 to get their Average Indexed Monthly Earnings (AIME). That number runs through a progressive formula to produce a monthly benefit. For a self-employed person, the earnings that count are the ones reported on Schedule SE, the same figure self-employment tax is calculated on.
Every dollar Dan legally shaved off his reported net income also took a dollar off the earnings Social Security ever saw. A W-2 electrician earning the $1,235 a week that a typical full-time worker reported in early 2026 shows up in the SSA system at roughly $64,000 a year. If Dan grossed similar money but reported $35,000 in net self-employment income year after year, his AIME reflects the $35,000, not the cash flow that actually ran through his shop.
Someone whose 35-year indexed average lands around $35,000 typically sees a benefit closer to $1,600 a month at full retirement age (FRA). Push that average to $70,000 and the benefit moves closer to $2,600. That is roughly $1,000 a month, $12,000 a year, every year for the rest of his life, adjusted upward by inflation. The 2.8% cost-of-living adjustment (COLA) for 2026 is applied to a smaller base forever.
Selling the Business Does Not Fix It
Dan may sell his shop, his truck fleet, and his customer list for a good number. That money helps to bankroll retirement. It does not touch the Social Security calculation. The benefit is baked in the moment he files, based on the earnings already on the record. There is no lookback that credits him for the cash jobs, and no amount of sale proceeds retroactively raises his AIME.
A few levers still exist. Delaying the claim past FRA adds roughly 8% per year up to age 70, so waiting three years can turn a $1,600 check into something closer to $2,000. A spouse with a stronger earnings record can lift the household through spousal or survivor benefits. And for whatever years are still ahead, a Solo 401(k) or SEP-IRA lets a self-employed person shelter a large chunk of income while still building retirement assets, though contributions to those accounts do not raise the Social Security benefit either.
Anyone in this position should pull their statement at ssa.gov/myaccount and look at the year-by-year earnings history. Gaps, zeros, and unusually low years are exactly what dragged the average down.
What to Take From This
For a tradesperson still working, lowering reported income has two consequences, and only one of them shows up on the tax return. The savings arrive now, in April. The cost arrives later, every month for 30 years, indexed to the same inflation measure that has pushed CPI-W into the high 320s. The hardest mistake to undo is the one already on the earnings record, because Social Security will not accept a do-over.
Every situation lands differently, and the interaction with a spouse’s record, other retirement accounts, and the exact claiming age can shift the picture more than people expect. Pulling the actual statement is the first real conversation to have with yourself.
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