College Dropout to Trade School: The Sunk Cost Math

The worst reason to finish a degree is “I’ve already spent too much to quit.” The worst reason to quit is “I already hate it, so it must be a waste.”

Both of those look backward. The money you’ve already spent on college is gone whichever way you go, so it doesn’t get a vote. The only question that matters is forward-looking: from today, which path puts more money in your pocket over the next ten years?

I ran that question through our ROI model. The answer depends mostly on one thing, and it isn’t your major or your GPA. It’s how many years you have left.

The Money You Already Spent Doesn’t Get a Vote

Our model prices college at $15,000 a year in tuition and fees, a blended College Board average across public and private schools. It uses $37,850 as the average student loan balance at graduation.

So say you’re done with your sophomore year. In the model, that’s $30,000 already paid. If you borrowed at an even pace, about $18,925 of it is a loan.

Here’s the hard part. That loan comes with you either way.

Federal Direct Loans give you a six-month grace period after you graduate, leave school, or drop below half-time, and then repayment starts (per studentaid.gov). Walking away doesn’t erase the debt, and finishing doesn’t either.

Since the old debt shows up on both sides of the ledger, I left it out of the comparison. What’s left is what you still control: the tuition you haven’t paid yet, the extra loans you haven’t taken yet, and the paychecks you could start earning.

How I Ran the Numbers

Two paths, ten years each, starting from the day you decide.

• Finish: pay the remaining years of tuition at $15,000 a year with zero earnings, borrow the rest of the average debt load, then start at $60,000 (a NACE first-destination average, blended across majors) with 3.5% yearly raises. Interest on the new loans counts as a cost at the 2025-26 federal undergraduate rate of 6.39%.
• Leave: start a trade now. Apprentice pay is a fraction of the BLS OEWS May 2025 median, training cost comes out in year one, full median after the apprenticeship, then a ramp toward the 75th percentile in years 8 through 10.

Taxes and living costs are left out of both, same as every number on this site. The methodology page has every assumption and its source.

Years Left in School Decide Most of It

Here’s the electrician path, national medians ($63,190 median, $83,940 at the 75th percentile), against finishing the degree.

When you’d leave	Years left	New debt to finish	10-year difference (trade minus finish)
After freshman year	3	$28,388	+$181,005
After sophomore year	2	$18,925	+$86,933
After junior year	1	$9,463	-$10,324

With three years left, leaving for an electrical apprenticeship comes out $181,005 ahead in this window. That’s three years of tuition you don’t pay plus three years of apprentice paychecks you do collect.

With two years left, it’s still $86,933 in favor of the trade. The trade path is $95,169 ahead by the time you’d have been walking across the stage.

After that, the new grad out-earns the apprentice for a stretch ($60,000 against $50,552 in year three) and the gap narrows. The lowest it gets is about $75,000, in year eight. Then the journeyman ramp kicks in and it widens again.

With one year left, the math flips. The trade leads by $39,095 after year one, the finisher passes it in year six, and finishing comes out $10,324 ahead at year ten.

I’ve learned that the last 5% of anything worthwhile takes longer than you think, and rushing the finish is how good projects turn into mediocre ones. One year from a degree is that last 5%.

Same Question, Different Trades

Hold the years left at two and one, change the trade. All national BLS OEWS May 2025 medians.

Trade	US median	2 years left	1 year left
Elevator installer	$109,910	+$516,025	+$418,768
Lineworker	$95,320	+$375,422	+$278,164
Plumber	$63,800	+$93,452	-$3,806
Electrician	$63,190	+$86,933	-$10,324
Diesel mechanic	$61,770	+$89,740	-$7,518
HVAC technician	$61,010	+$89,296	-$7,962
Carpenter	$60,580	+$72,480	-$24,778
Heavy equipment operator	$59,850	+$73,954	-$23,303
Welder	$53,750	+$22,909	-$74,348

Positive means the trade comes out ahead over ten years. Negative means finishing does.

The top two rows need a warning label. BLS counts 23,790 elevator installers nationwide, against 757,220 electricians.

Elevator apprentices come in through programs like NEIEP, which require a high school diploma, age 18 or older, and a passing score on the EIAT aptitude test. Line apprenticeships may require high school algebra, an aptitude test, a physical fitness test, and substance screening. Those are real doors, but narrow ones.

The middle of the table is the honest story for most people. Plumbing, electrical, HVAC and diesel all beat finishing by roughly $87,000 to $93,000 with two years left, then land within about $10,000 of finishing with one year left. That’s close enough that a scholarship, a part-time job, or a slower grad start could swing it either way.

Welding is the outlier on the low end. With one year left, finishing wins by $74,348 nationally.

Your State Moves the Line

National medians hide a lot. Same electrician switch, two years left, four states:

• Washington ($95,220 median): trade ahead by $381,519
• Ohio ($64,700): trade ahead by $90,397
• Texas ($58,570): trade ahead by $29,666
• Florida ($57,250): trade ahead by $2,164, basically a tie

Florida plumbing with two years left goes the other way, with finishing ahead by $25,725. With one year left, a Washington electrician still comes out $284,261 ahead, while a Texas electrician falls $67,591 behind finishing.

One caution on the state numbers: the college side of the model uses the same $60,000 starting salary everywhere, so it doesn’t adjust for the fact that grad pay also runs higher in some states. The trade side does adjust. Treat high-wage state results as the friendliest case for the trade, not a promise.

I’ve lived and worked in Alaska, Hawaii, Guam, Louisiana, Colorado and Washington, among others, and the trades really do pay differently from region to region. Check your own state, never the national average.

What the 10-Year Window Doesn’t Show

I’d be doing you wrong if I stopped at the table. Here’s what this math leaves out.

Your major matters a lot. The $60,000 starting salary is a blend. If you’re two years into nursing or engineering, your real number is probably higher, and finishing looks better than this table says. If you’re in a field with weak starting pay, the trade looks better.

Ten years isn’t a lifetime. The model stops at year ten on purpose, because that’s where the early-career gap lives. Lifetime earnings by degree field can tell a different story, and our methodology page says so plainly.

A degree also doesn’t expire. If you might want it in five years for a management track, that has value no spreadsheet captures.

On-time graduation is generous. The model assumes you finish in exactly the years you have left. Plenty of students take longer, and every extra semester is another $7,500 in tuition at our model’s rate, plus months of paychecks you’re not collecting yet. That assumption favors the finish path.

The work is physical. Apprentices work. Cold mornings, heavy material, your body on the line every day. It’s honest work and I’ve spent my life in it, but go in clear-eyed.

If You Leave, Leave With a Plan

Don’t drop out into nothing. The worst version of this is leaving school in October, sitting on the couch until spring, and watching that six-month loan grace period run out with no paycheck coming in.

A few things I’d line up first:

1. Get the apprenticeship or the job before you withdraw. Apply while you’re still enrolled. Many apprenticeships take applications on a schedule, and some require an aptitude test first (NEIEP’s EIAT is one).
2. Ask about credit. BLS notes that trade school graduates usually get credit toward an electrical apprenticeship, and that military or construction experience can shorten it. Ask every program how they treat prior coursework.
3. Look hard at paid-from-day-one programs. IBEW Local 110 in St. Paul, on its 2025-26 contract year, started apprentices at 45% of scale ($25.56 an hour) and stepped them up to 85% ($48.28 an hour) in year five. No new student loans required.
4. Work for a good outfit first. That’s the advice I’d give any young tradesman. Learn from someone who does it right before you think about going out on your own.

Our Jobs That Pay for Your Training post lists paid routes by trade, and Apprenticeship vs College covers the earn-while-you-learn math from age 18.

How I’d Make the Call

When I was a B-52 crew chief in the Air Force, you followed the checklist every time. Skipping a step on a bomber is how people get hurt. A decision this size deserves the same treatment.

• Count only what’s ahead of you. Remaining tuition, new loans, and lost paychecks. Not what you’ve already spent.
• Use your years left as the first filter. Three left, the trades usually win big. Two left, they usually still win. One left, finishing usually wins unless you’re in a high-wage state or headed for a top-paying trade.
• Swap in your real numbers. Your state’s trade median, your major’s real starting pay, your real remaining tuition.

It’s hard to find good workers in construction right now. That’s the biggest frustration I have in this industry, and it’s why I’m glad people are asking this question at all. But a trade you walk into with your eyes open beats one you run to because a semester went bad.

Run your own numbers. The ROI calculator shows the trade path year by year for any trade and state, so you can see what an apprenticeship pays where you actually live.