What Is a Sales Commission?

A pay statement comes through with a number on it that's higher than last month's. A large customer signed a contract, several smaller deals closed, and each result shows up beside its own commission line. The questions that follow are practical ones: which sales counted, what rate applied, and whether the money lands now or waits until the customer pays.

Employers care about the same questions for a different reason. A commission plan can push people toward revenue goals, but only when everyone understands how the earnings get calculated. Here's what a sales commission is and how it usually works.

What Is a Sales Commission?

A sales commission is money paid to a worker after completing a defined sales-related task, such as selling a certain amount of goods or services. Employers use commissions to encourage productivity, and a commission can be paid in addition to salary or instead of it, according to the U.S. Department of Labor.

What it does is connect some portion of a salesperson's earnings to their results. Those results might be measured by revenue from closed sales, the number of deals completed, or new customers acquired. Some plans measure renewals and repeat purchases instead, and others pay out on hitting a team or individual target. A clear plan defines which result earns commission, when it's considered earned, and how much the worker receives.

How Sales Commissions Work

The basic calculation is straightforward:

Sales revenue × commission rate = commission earned

Say a representative has a base salary and earns 6% commission on eligible revenue. Over the month they close three qualifying deals worth $8,000, $12,000, and $15,000, which gives them $35,000 in eligible revenue.

$35,000 × 0.06 = $2,100

Salesforce describes this as the basic approach — multiply sales revenue by the designated commission rate — and notes that commissions can be additional pay earned for achieving defined goals. See Salesforce's sales commission guide.

Real plans add detail on top of that. A business may exclude canceled orders, refunds, taxes, shipping costs, or discounts from the commissionable amount, and it should specify whether the percentage applies to gross revenue, net revenue, or collected revenue. A written plan needs to state exactly what "6% commission" means, because 6% of the wrong number is how disputes start.

Common Sales Commission Structures

Salary Plus Commission

The employee receives regular base pay plus commission on eligible sales. Base pay offers predictable income while commission rewards performance. The model works well when a role includes work that doesn't lead directly to an immediate sale, like account planning or relationship management.

Straight Commission

Earnings come primarily or entirely from commissions rather than a fixed base salary. The Department of Labor notes that commissions may be paid instead of salary, and its guidance on commissions also explains that the Fair Labor Standards Act doesn't require employers to pay commissions at all. Since income can swing considerably under this model, the written terms matter more than usual.

Flat Commission Per Sale

A flat-rate plan pays a set dollar amount for each qualifying sale — $75 for every completed service contract, say, regardless of what the contract is worth. It's simple to track, and it fits when sales have similar value or when a company wants to emphasize one specific action.

Percentage-of-Revenue Commission

The commission rises with the value of the sale, since it's a percentage of eligible revenue. This is the structure most people picture when they hear "commission," which is exactly why the definition of eligible revenue deserves attention before anyone signs.

Tiered Commission

A tiered plan changes the rate once a salesperson passes a specified sales level. The plan should say whether the higher rate applies only to sales above the threshold or to all eligible sales once the threshold is reached, because the difference is substantial.

Why Companies Use Commission Plans

Commission pay lines individual effort up with business results. A company might offer different rates for new products, higher-margin offerings, new customer accounts, longer contract terms, or strategic markets.

The goal is to encourage the right behavior, not just more activity. A plan that rewards only the fastest possible sale gives workers less reason to think about customer fit or long-term value. Good design balances the sales incentive against the customer experience and the company's broader priorities.

When Is a Commission Actually Earned and Paid?

The most overlooked part of a commission plan is the gap between closing a sale and getting paid for it. A plan typically defines an earning trigger — a signed contract, a delivered product, a paid invoice. Only once that trigger happens does the commission become payable, and even then it may wait for the next scheduled payroll cycle instead of arriving right away.

The timing matters most when a deal falls apart after it closes. If a customer cancels, fails to pay, or returns a product before the earning condition is met, the written rules decide whether the commission is reduced, delayed, or clawed back from a future paycheck. Some plans pay upfront and reverse the amount later if the sale collapses; others hold payment until the revenue is fully collected. The law doesn't mandate either approach, which leaves it to the employer's plan. So workers shouldn't assume a closed deal is automatically payable the moment it closes, and employers should put cancellation and adjustment rules in writing rather than leaving them to informal understanding.

What to Look for in a Commission Plan

Start with which sales qualify, meaning the specific products, services, or actions that count. From there, confirm what amount is commissionable and what rate applies, including any tiers or caps. The earned-and-paid dates are worth pinning down separately, since a plan can treat them as two different moments. Ask what happens when a sale changes, because cancellations, refunds, and nonpayment should all be addressed somewhere in the document. And find out who resolves questions, since employees need a clear process for getting a calculation reviewed.

The Bottom Line

A sales commission ties a portion of pay to sales results, either as a supplement to salary or as the main form of compensation. Plans that spell out qualifying sales, calculation methods, and payment timing give workers confidence, and they give employers an incentive tool that works the way it was meant to.

Informational note: This article is provided for general informational purposes only and is not legal advice. It does not represent the advice or opinion of the website or organization on which it appears.