Commission Calculator

What this calculator tells you

A commission calculator shows how much you earn from sales when pay depends on a percentage of what you sell. It also shows your total pay when commission is added to a base salary or a fixed monthly fee. It is useful for sales staff, agents, brokers and anyone comparing a commission-only role with a salaried one.

The result is an estimate of gross pay before tax and deductions. Real pay plans often have tiers, caps, targets or clawbacks that change the amount, and this calculator uses one flat rate, so it is best read as a clear starting point for a single rate.

How commission is worked out

Commission is the rate multiplied by the sales value that counts for pay. Total pay is the base salary plus the commission. The rate is written as a percentage, so a 5% rate on 40,000 of sales produces 2,000 of commission. Expressed as a formula, commission equals sales multiplied by the rate divided by 100.

A worked example

Suppose your role pays a base salary of 3,000 a month and a 5% commission on sales. In a month with sales of 40,000, the commission is 2,000, so the total gross pay is 5,000. In a quieter month with sales of 10,000, the commission is 500 and the total is 3,500. The base pay stays the same while the commission moves with sales.

Comparing pay plans

A commission-only plan can pay more in strong months but leaves you with no income in weak ones. A plan with a base salary is steadier, and the commission can be a bonus on top. To compare two offers, work out the expected sales for a typical month, apply each plan to that figure, and look at the worst month as well as the average, because the lower figure shows the income risk.

Check which sales count. Some plans pay on the sales price before discounts, others on the net amount received, and some exclude returns, refunds or certain products. A small change in the definition can change pay by a large amount, so read the definition as carefully as the rate.

What the calculator leaves out

Commission is normally taxed and may be subject to social contributions, which depend on your country and employment status. Some plans include tiers where the rate rises after a target, or a cap on total earnings. This calculator does not model tiers, caps or timing, such as commission paid in arrears or on a later date when a sale is confirmed.

Expenses that come with sales work, such as travel, equipment and tools, reduce your real income and are not included. If you are self-employed, the commission is income before your own costs and tax.

Checking the commission statement

Pay statements do not always match the plan, so check each one. Look at which sales were counted, whether any were reversed, and whether the rate applied matches the rate in your agreement. Keep your own sales log, so a missing or disputed sale can be raised quickly and with evidence.

Using the result

Use the calculator to test how much you need to sell to reach a monthly income target, by entering the target as the total pay and working backwards. The required sales figure is the commission needed divided by the rate. Keep your own record of sales, and ask your employer for the written plan so you can check each month's statement against it.