How it works
How to use this commission calculator
- Enter sales for the period.
- Enter the commission rate as a percent.
- Optionally enter base pay, then read commission and total pay.
Formula
The calculation formula
Commission = Sales × Rate; Total pay = Base + Commission01
Convert the commission rate from a percent to a decimal.
02
Multiply sales by that rate.
03
Add any base pay. Leave base blank when commission is the only pay.
Worked examples
Example calculations
Commission only
$8,000 × 8% = $640. With no base pay, total pay is also $640.
Base plus commission
The same $640 plus a $2,000 base is $2,640. Sales cannot be negative.
When to use it
Common use cases
- Estimate commission on a closed sale
- Add a base salary to variable pay
- Check a stated commission rate against a receipt
Limits
Assumptions and limits
- The rate is a single flat percent of the entered sales. Tiers, draws, and clawbacks are not modeled.
- Taxes and benefits are not deducted.
- Currency display uses USD rounding to 2 decimal places.
Questions
Frequently asked questions
Does this handle tiered commission?
No. Enter the sales that sit in one rate, or run the calculator once per tier and add the commissions yourself.
Is base pay required?
No. Leave it blank when you only need the commission. Blank base pay is treated as $0.
Sources
Sources and review
- Investopedia — commission
Commission as a percentage of the transaction or sales amount
Accessed August 25, 2026