Sales Commission Calculator 2026
Calculate commission as % of sales or flat per unit. Add base salary for total compensation. Free—no sign-up.
Commission
$2,500
Total compensation
$2,500
Effective commission rate: 5.00%
5.0% of $50,000 = $2,500
How to calculate commission on sales
Commission is pay tied to performance—usually a percentage of sales (e.g. 5% of revenue) or a flat amount per unit (e.g. $25 per sale). To calculate commission as a percentage of sales: Commission = Sales × Rate. Example: $50,000 in sales at a 5% commission rate = $2,500 commission. Our calculator above lets you enter sales amount and commission rate (percentage of sales) or switch to flat per unit (units sold × amount per unit). Add an optional base salary to see total compensation (base + commission).
Is commission taxed differently? Supplemental pay and withholding
Commission paid by an employer (W-2) is supplemental wages and is often withheld at a flat supplemental rate—e.g. 22% federal for amounts under $1 million—plus FICA (Social Security and Medicare). So your first commission check may have higher withholding than your regular salary check. Your total tax for the year still depends on your full income and filing status; the supplemental rate is just a withholding method. For tax on bonus or commission pay, use our Bonus Tax Calculator. For take-home pay including salary and commission by state, use our US Tax Calculator. If you earn commission as a contractor (1099), use our 1099 Tax Calculator for self-employment tax and income tax.
Base salary plus commission: total compensation
Many sales roles pay base salary + commission. Total compensation = base + commission. A higher base gives stable income; commission rewards performance. Use the calculator above: enter your base salary (if any), then sales and commission rate (or units and per-unit amount). The result shows commission earned and total compensation. For annual take-home after tax on that total, use our US Tax Calculator with your combined salary and commission as gross income.
When to use a commission calculator
Use a commission calculator when you earn pay from sales or units—sales reps, realtors, brokers, recruiters, gig workers paid per deal or per unit. It helps you: (1) see how much commission you’ll earn from a given sales amount or unit count, (2) add base salary for total comp, (3) compare different commission rates or structures. For hourly or salary-only pay, use our US Tax Calculator or Hourly to Salary Calculator. For side income or freelance commission, see 1099 Tax Calculator.