A cost that belongs to the sale, not the payday
Commissions are one of the cleanest examples of a core accounting idea: an expense should land in the same period as the revenue it helped create. A salesperson closes a deal in March, but you don't pay their commission until April's payroll run. Book the cost in April and your March looks more profitable than it really was, and April looks worse — both numbers lie. Recording sales commissions properly is about putting the cost next to the sale that earned it. (General education, not accounting advice.)
Commission expense, and where it lives
A sales commission is a selling expense — a cost of generating revenue — so it sits on your profit & loss statement below gross profit, alongside your other operating costs in your expense categories. It is generally not part of cost of goods sold; COGS is what it costs to produce or deliver the thing you sold, while a commission is what it costs to sell it. Keeping commissions out of COGS keeps your gross margin clean and your selling costs visible as their own line.
A simple structure: a salesperson earns ten percent on what they close. They close fifty thousand dollars of deals in a month, so they've earned five thousand in commission. That five thousand is a selling expense of the month the sales happened — which is the whole question of when to record it.
Cash basis versus accrual basis
How you record the timing depends on which method you run, the same split covered in cash vs. accrual accounting:
- Cash basis. You record the commission expense when you pay it. Simpler, but it pushes the cost into whatever month payday falls in, which can sit a month or more after the sale.
- Accrual basis. You record the commission when it's earned — when the sale closes — even though you pay it later. This is the method that matches the cost to the revenue.
On accrual, the earned-but-unpaid commission becomes an accrued liability until you pay it. When the salesperson earns the five thousand in March, you record a five-thousand commission expense and a five-thousand "commissions payable" liability — one of the classic adjusting entries made at period end. When you actually pay in April, you clear the liability and reduce cash; the expense doesn't hit again, because you already recorded it in March where it belongs. March carries its true selling cost, and April's profit isn't dented by a cost that wasn't really April's.
Employees versus contractors: the part that changes the mechanics
Who you pay the commission to changes how it flows through the books, even though the matching principle is the same:
- An employee on commission is paid through payroll. The commission is wages — subject to withholding and employer payroll taxes like any other compensation — and it runs through your payroll records, not a simple bill.
- An outside sales rep who's a contractor is paid as a vendor. There's no withholding, and the payments feed your 1099 contractor tracking for year-end reporting rather than your payroll.
Misclassifying which one a person is doesn't just affect bookkeeping — worker classification carries real tax and legal consequences, and the rules change, so it's worth getting right rather than guessing.
Why the discipline pays off
Commissions handled loosely make your monthly numbers jumpy for no real reason: a big sales month looks lean because the commissions haven't been paid yet, then a slow month looks worse because last month's commissions land in it. Accruing the commission to the month of the sale smooths that out and tells you the truth — how profitable each month's selling actually was after the cost of closing the business. That's the same instinct behind reading your results comparatively: the trend only means something when each period carries its own real costs.
Hosting Books lets you record commission expense as a selling cost and, on accrual, hold the earned-but-unpaid amount as a liability until you pay it — so each month's profit reflects the true cost of the sales it actually closed.
This article is general educational information about accounting and tax concepts and is not accounting or tax advice for your specific situation.