Commission Calculator
Last updated: 27 June 2026
Reviewed by Gavin Meiring, Lead research and primary author · Doctoral Candidate (Corporate Governance) · Research and drafting assisted by AI
- Real estate commissions in the US average 5–6% of the sale price. In the UK they average 1–3%. A 2024 US court ruling changed how these commissions are disclosed and paid.
- Stock brokerage commissions fell from an average of $45 per trade in the 1990s to $0 at most online brokers after Schwab eliminated trading fees in 2019.
- Insurance agents typically earn 10–15% commission on the policies they sell — which is why they may recommend more comprehensive (and expensive) coverage than you strictly need.
Commission Calculator
A commission calculator works out earnings from a sale based on the commission rate and sale value, or calculates what commission rate is implied by a given payment. It is used by salespeople tracking earnings, managers setting targets, and businesses designing compensation structures.
How to Use the Commission Calculator
- Enter the sale value or revenue generated.
- Enter the commission rate as a percentage.
- Click calculate to see the commission earned and the net amount retained by the business (if applicable).
- For tiered commission structures, enter each tier's threshold and rate separately to see the total payout.
- To find the implied rate, enter the sale value and the commission paid.
The Formula
Basic commission:
Commission = Sale Value x (Commission Rate / 100)
For a tiered structure with different rates above thresholds:
Commission = (Tier 1 amount x Rate 1) + (Tier 2 amount x Rate 2) + ...
Where Tier 1 amount is the revenue up to the first threshold and Tier 2 amount is revenue between the first and second thresholds, and so on.
Net revenue after commission = Sale Value - Commission
Real-World Example
A sales consultant earns a base salary plus commission on monthly sales. Their structure is: 5% on the first £10,000 of monthly sales, 8% on sales between £10,001 and £25,000, and 12% on sales above £25,000. This month's sales total £32,000.
- Tier 1: £10,000 x 5% = £500
- Tier 2: £15,000 x 8% = £1,200
- Tier 3: £7,000 x 12% = £840
- Total commission: £2,540
Effective rate: £2,540 / £32,000 = 7.9%, though the marginal rate on the last £7,000 was 12%.
Designing a Commission Structure That Works
A well-designed commission structure motivates top performers without penalising consistent contributors. Flat-rate commission (one percentage applied to all sales) is simple and easy to understand but does not accelerate performance at the top end. Tiered structures reward high earners proportionally more, creating stronger incentive to exceed targets. Capped commission structures (where commission stops accruing above a threshold) can demotivate star performers once they hit the ceiling. Accelerator structures, where the rate increases above target, are the most effective at driving performance. Any structure should be simple enough for the salesperson to calculate their own earnings without confusion; complexity reduces trust and erodes motivation.
Frequently Asked Questions
Is sales commission taxable in the UK? Yes. Commission is treated as employment income and is subject to income tax and National Insurance at the same rates as salary. It is taxed in the pay period in which it is paid, which can push a salesperson into a higher tax bracket in a high-commission month. In self-employment, commission income is declared as part of trading income on the self-assessment return.
What is a reasonable commission rate? Commission rates vary significantly by industry. Recruitment typically pays 15 to 25% of placed candidate salary. Real estate agents earn 1 to 3% of property sale price. Software sales often offers 8 to 12% of annual contract value. B2B sales roles commonly pay 3 to 10% depending on margin and deal size. High-margin products with long sales cycles generally command higher commission rates.
How does a draw against commission work? A draw is an advance on future commission, often used to provide income stability during a ramp-up period for new salespeople. A recoverable draw means the advance must be repaid from future earnings. A non-recoverable draw is a guaranteed minimum; if commission does not exceed it, the employer absorbs the difference. Draws are common in industries with long sales cycles where commission payments are lumpy.
What is the difference between commission and a bonus? Commission is directly tied to a specific sale or revenue figure: no sale, no commission. A bonus is typically a discretionary or performance-based payment tied to broader targets such as quarterly revenue, customer satisfaction, or project completion. Bonuses may not be guaranteed even if targets are met, while commission formulas usually specify exactly what is earned per transaction.
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Worked examples from a commission statement
Example 1, a flat rate. A salesperson earns a base of 60,000 plus 5 percent of sales. Sales for the quarter are 250,000. Commission = 0.05 times 250,000 = 12,500, and total pay = 60,000 plus 12,500 = 72,500.
Example 2, a tiered rate. The same person moves to a marginal structure: 3 percent on the first 100,000 of sales, 5 percent on the next 150,000, and 8 percent above 250,000. Sales of 300,000 pay 0.03 times 100,000 = 3,000, plus 0.05 times 150,000 = 7,500, plus 0.08 times 50,000 = 4,000, giving 14,500. The effective rate on the whole 300,000 is 14,500 divided by 300,000 = 4.83 percent, well under the 8 percent marginal rate. That gap is normal, and it is the most common source of disputes about a commission statement.
Example 3, checking a statement. A statement claims 9,000 on sales of 300,000 and describes the plan as a 5 percent rate. Since 0.05 times 300,000 = 15,000, the claim is not 5 percent. Dividing the other way, 9,000 divided by 300,000 = 0.03, so the rate applied was 3 percent, or the 300,000 is not the base the rate applies to.
Commission at each sales level
| Sales | Flat 3% | Flat 5% | Flat 7% | Tiered 3/5/8% | Effective tiered rate |
|---|---|---|---|---|---|
| 50,000 | 1,500 | 2,500 | 3,500 | 1,500 | 3.00% |
| 100,000 | 3,000 | 5,000 | 7,000 | 3,000 | 3.00% |
| 150,000 | 4,500 | 7,500 | 10,500 | 5,500 | 3.67% |
| 250,000 | 7,500 | 12,500 | 17,500 | 10,500 | 4.20% |
| 300,000 | 9,000 | 15,000 | 21,000 | 14,500 | 4.83% |
| 400,000 | 12,000 | 20,000 | 28,000 | 22,500 | 5.63% |
The flat columns scale in a straight line, so doubling sales doubles the commission. The tiered column does not. It moves slowly at first and accelerates as sales push into higher bands. Below 100,000 the tiered structure pays exactly the 3 percent floor, which is what a low entry rate is designed to do.
Method and assumptions
The calculator applies one rule, commission = rate times the base it is given. The structure around that rule is where the ambiguity lives, and the tool cannot resolve it for you:
- The base. Commission on invoiced revenue and commission on collected revenue differ whenever a customer pays late or not at all. The tool treats whatever you enter as the base, so enter the figure the agreement names, not the sales ledger total.
- Marginal against flat. A tiered plan applies each rate only to the slice of sales inside its band, the way income tax brackets work. A plan described as "5 percent above 100,000" is sometimes read as paying a flat 5 percent on the whole amount once the threshold is crossed. On the same sales figure the two readings differ by thousands. Read the plan, then choose the mode that matches it.
- Caps, draws and clawbacks. A cap limits total commission, a draw pays an advance that later commission repays, and a clawback reverses commission on refunded or unpaid sales. All three sit outside the arithmetic and none is modelled here.
- Quotas and splits. A quota that must be crossed before any commission is earned, and a split between two people on one deal, both change the result before a rate is ever applied.
- Rounding. Statements normally round to the cent once, at the end. Rounding inside each band and then summing gives a different figure, sometimes by several cents a line.
What the effective rate tells you
The effective rate is total commission divided by total sales, and it is the figure to quote when two plans are compared. A plan with a high marginal rate and a high threshold can pay less over a realistic year than a plan with a lower rate and a low threshold. On the tiered plan above, 400,000 of sales produces an effective rate of 5.63 percent rather than 8 percent, and a flat 6 percent plan beats it at every level in the table. The same arithmetic run backwards sets a target. To earn 20,000 on the 3/5/8 plan, solve 3,000 plus 7,500 plus 0.08 times (S minus 250,000) = 20,000. That gives S = 250,000 plus 9,500 divided by 0.08 = 368,750 of sales.
Source
No external standard fixes how a commission plan is structured, and the terms that change the arithmetic come from the plan document or the employment agreement rather than from a rulebook. The one comparison worth carrying in your head is that a marginal commission band and an income tax bracket are computed the same way: the rate applies to the slice, not to the whole. When a statement and this calculator disagree, the disagreement is almost always about the base, or about reading a marginal plan as a flat one.