This sales commission calculator uses a sale amount and a percentage rate to calculate the commission earned, the amount remaining after commission, and the price needed to retain a target amount after commission is deducted.
Sales commission is compensation tied to sales, such as a payment to a salesperson, affiliate, or referral partner. For the recipient, it is earnings; for the business paying it, it is a selling cost. This calculator applies one fixed percentage to the amount you enter.
How to use the sales commission calculator
- Enter the Price ($). For a commission calculation, enter the sale value or other amount eligible for commission under your agreement.
- Enter the Commission (%). Enter the percentage as a number: for a 15% commission, enter 15, not 0.15.
- Read the three results. “Commission amount” shows the earnings on that sale, “Price after commission” shows what remains, and “Price including commission” shows the higher price needed to retain your entered amount after commission.
The last result answers a different question: it treats your Price input as the amount you want to keep, rather than the price already charged. Use that result when setting a price that must cover a percentage-based commission.
Sales commission formula
Let P be the Price input and r be the commission rate expressed as a decimal. Convert the entered percentage by dividing it by 100: a 15% rate becomes 0.15.
| Calculator result | Formula | What it means |
|---|---|---|
| Commission amount | P × r | The commission payable on the entered price. |
| Price after commission | P × (1 − r) | The entered price minus the commission. |
| Price including commission | P ÷ (1 − r) | The selling price needed to retain P after commission is deducted from that higher price. |
These are percentage calculations: the commission rate must be converted to a decimal before multiplication or division.
Example: a $5,000 sale with a 15% commission
Using Price = $5,000 and Commission = 15% gives:
- Commission amount: $5,000 × 0.15 = $750.
- Price after commission: $5,000 × 0.85 = $4,250.
- Price including commission: $5,000 ÷ 0.85 ≈ $5,882.35.
The first two results describe a $5,000 transaction. The third describes a separate pricing scenario: charge approximately $5,882.35 to retain $5,000 after paying a 15% commission on the higher selling price. On that transaction, the commission would be approximately $882.35.
Why not just add 15% to cover a 15% commission?
Adding 15% to $5,000 produces a price of $5,750. But a 15% commission on $5,750 is $862.50, leaving only $4,887.50. The commission applies to the final selling price, so covering it requires division by the percentage you keep—not simply adding the commission percentage.
How to interpret your results correctly
- Confirm the commission base. Your agreement may calculate commission on revenue before or after discounts, refunds, taxes, or shipping. Enter the eligible amount, not automatically the invoice total.
- Use a consistent rate. You can enter combined sales if all included sales use the same rate. Calculate different rates separately and add the commission amounts.
- Recognize the limits of a flat-rate calculation. The formulas do not account for salary, bonuses, tiered rates, caps, or clawbacks. A commission based on gross profit also requires calculating that eligible profit amount first.
- Check rounding rules. Rounding each transaction to cents can produce a different total from calculating commission once on combined sales. Follow the agreed payment method.
For ordinary commission calculations, use a nonnegative amount and a rate between 0% and 100%. At 100%, the entire sale goes to commission and nothing remains. The price needed to cover commission is undefined at 100%; a meaningful positive target-price calculation requires a rate below 100%.
Using commission figures for pricing and budgeting
Salespeople and affiliates can use the commission amount to estimate gross earnings before taxes or other deductions. Business owners can compare commission costs across proposed rates or use the price including commission result to set a target selling price.
The amount remaining after commission is not profit. Product costs, fulfillment, payment processing, and other expenses still need to be covered. Use the margin calculator to assess the relationship between selling price and cost, or the profit calculator to evaluate revenue against costs. Avoid counting commission twice if it is already included in your cost figures.
If your website needs quotes that account for referral commissions, Calcopolis lets you build a customized quote calculator using your pricing rules, helping visitors estimate a price before submitting a quote request.