Buying a Truck in December Isn't a Tax Plan
"It's a write-off!" — David Rose, Schitt's Creek
If you've seen it, you know the rest: his dad asks who exactly writes it off, and David's best guess is "the government people." It's the funniest thirty seconds ever filmed about taxes, and it's funny because half the people watching couldn't answer the question either.
Every December, somebody buys a truck they didn't need to save taxes they hadn't calculated.
The ads haven't started yet. That's exactly why we're talking about it in September — before the countdown clocks and the zero-down banners start doing your thinking for you.
The write-off is real. That's what makes the trap work.
The logic sounds airtight in December: buy the equipment, take the deduction, shrink the bill. And the deduction is real — equipment timing is one of the legitimate levers a contractor business has, and used with intention it's a good one.
But spending $60,000 to save $15,000 only makes sense if you needed the truck. Run it the other direction: that's $45,000 leaving the business for a tax outcome, right before the season when cash gets thin. The dealership's year-end ad doesn't mention that part. Neither does the guy at the counter — and it's genuinely not his job to. It's somebody's, though.
Walk the lot with me.
Picture the version of this done right. It's late September. She's got a quote in her hand — $62,400, the flatbed with the package her lead guy has been asking about since spring — and she's running three questions against it before anyone runs a credit check.
First: would we buy this in the next twelve months anyway? In her case, yes — the old one has been in the shop twice this summer and the crew lost a day each time. That answer matters, because a purchase you already needed, timed well, is strategy. A purchase invented for the deduction is spending a dollar to save thirty cents.
Second: what does it do to cash? She sets the quote next to her winter payroll number. The deduction shows up on the return in April; the payment leaves the same account that has to carry the crew through the thin weeks. Both are real — only one is due now. If the two can't live in the same account, the answer is a different structure or a different month, and in September she has time to find either.
Third: what does it actually save? Not "a write-off" — a dollar figure, run on her rate, her entity, her year. If nobody has run that number, the decision is being made on a feeling, and the dealership is happy to supply the feeling.
Twenty minutes. Three answers, written down. Whatever she decides in December, she decided it in September — on her numbers, not on a banner.
For what it's worth, she bought the flatbed — in October, structured so the payment and winter payroll could live in the same account, with the actual tax number in hand instead of the dealership's version of it. Same truck the December ad would have sold her. Completely different purchase. One version strengthens the business heading into winter. The other weakens it and calls the damage a deduction.
Every good year-end move works the same way.
Equipment timing is one lever. How you pay yourself is another — how much, in what form, on what rhythm moves the tax picture more than most equipment decisions ever will, and it's nearly impossible to fix retroactively in late December. Retirement contributions, which year a big invoice lands in — real moves, every one of them, and every one has the same requirement: math before money, and time to act on the math.
Same with the structure the business sits in. It was probably chosen years ago, at a different size, and it quietly shapes every one of these numbers. Reviewing it is an hour in October and a headache in December — the elections and paperwork that make a change real mostly need runway too.
I watched a client run this whole sequence a few weeks ago: equipment she needed anyway, timed on purpose. Retirement money that sent dollars to her and her husband's SEP instead of the IRS. A payment schedule she picked. Her bill came down and her business got stronger — in that order. Every move on the list, run with runway.
Made in October, these are strategy. Made in the last week of December, they're a scramble — a purchase decided in a parking lot, paperwork signed before anyone looked at the cash picture, and a February that got harder because the account went into the thin season $60,000 lighter.
The worst part of the scramble is what it skips. Nobody sets the quote next to winter payroll in a finance office at 6pm on December 29. Nobody runs the actual savings number. In December, the questions simply stop getting asked.
You're still holding the pen.
Your April bill is still being written — that's been true all month, and it stays true for three more. The owners who end the year calm aren't the ones who found a magic deduction. They're the ones who ran the math while there was still time to act on it. Every one of them had a September. The window is open. Nothing about April is decided yet.
And here's what happens next: in October, I start sitting down with my clients for year-end planning meetings — the conversation where we decide, on purpose, how the year is going to end. Equipment, owner pay, retirement money, the January payment. That's the room where this math gets run.
If you want a seat at that table this fall, the Clarity Session is the first step: simplybalancedaccountants.com/clarity-session
This post is part of The Planning Window series. Start at the beginning: simplybalancedaccountants.com/news-notes/your-tax-bill-is-being-written
Not sure where to start? Start Here: simplybalancedaccountants.com/start-here
Leslea Burnett-Little, EA, is the founder of Simply Balanced Accountants. She works exclusively with women who own and operate contractor businesses in Michigan — helping them get clear on their numbers, keep more of what they earn, and build a business that works for their family.
