Sales Commission Calculator

What this sales commission calculator does

You closed a deal and you want to know what you earned on it. Or a cheque arrived and you want to check whether the rate you were promised is the rate you were paid.

This does both. It runs in two directions: give it a sale price and a rate and it tells you the commission, or give it a commission and a sale price and it tells you what rate that actually was.

That second mode is the more interesting one. Nobody sets out to calculate a rate they already agreed. People use it when the money that arrived does not look like the money they expected, and working backwards is how you find out why.

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How to use it

Pick your direction from the dropdown at the top and the fields change to match.

Commission Amount mode, for working out what you earned:

1. Sale Price. The value of the sale the commission is based on.
2. Commission Rate. Your rate as a percentage, so type 5 rather than 0.05.

Commission Percentage mode, for working out what rate you were paid:

1. Commission Amount. What you actually received.
2. Sale Price. The sale it related to.

Press Calculate. Press Reset to clear it.

The fields arrive pre-filled with a worked example so you can see the shape of it immediately. Type over them.

Both formulas

Going forwards, from a rate to an amount:

Commission = sale price × (rate ÷ 100)

Going backwards, from an amount to a rate:

Rate = (commission ÷ sale price) × 100

They are exact inverses, which is what makes the second mode a genuine checking tool rather than a novelty. Run your actual payment against your actual sale, see what rate comes out, and compare it against your contract. If those two numbers disagree, you have found something worth a conversation.

Common reasons the effective rate comes out lower than the agreed one: the commission was calculated on the sale net of tax rather than gross, or after a discount you did not know about, or on gross profit rather than revenue, or the deal fell into a lower tier than you thought. All of those are ordinary and none of them are visible on a payslip.

Worked examples, both directions

Forwards. A sale of 5,000 at a 5 percent commission rate.

5,000 × 0.05 = 250.

Backwards. You received 250 on a sale of 5,000.

(250 ÷ 5,000) × 100 = 5 percent.

Now the version that is actually useful. Suppose you expected 250 and received 200. Run it backwards: (200 ÷ 5,000) × 100 = 4 percent.

So you were paid at 4 percent rather than 5. That is a specific, checkable fact rather than a vague sense that something was off, and it is a much better opening line than "I think my commission is wrong". The likely explanations are in the next section, and one of them is probably yours.

What the commission is calculated on

The rate gets all the attention in a negotiation. The base it applies to matters just as much and is discussed far less.

Revenue. The simplest and most common. Commission on the total sale value. Easy to calculate, easy to verify, and it means you earn the same on a heavily discounted sale as the headline suggests.

Gross profit. Commission on the margin rather than the sale. Rates are much higher to compensate, and the effect is to make discounting expensive for the salesperson rather than free. A 20,000 sale at 5 percent of revenue pays 1,000. The same sale at 12 percent of gross profit, on a 40 percent margin, pays 960. Similar money, completely different incentives, because under the second plan every point of discount you give away comes partly out of your own pocket.

Net of tax. On a 20,000 sale carrying 20 percent VAT, whether the base is 20,000 or 16,667 changes your commission by a sixth. Worth establishing which.

Collected rather than invoiced. Some plans only pay once the customer has actually paid. Reasonable from the company's side, and it means a slow-paying client delays your money through no fault of yours.

If you are being offered a commission plan, the base is the first question, not the second. A high rate on gross profit can be worth less than a modest rate on revenue, and the two are not comparable without knowing the margin.

How commission plans are actually built

This calculator handles a flat rate on a single sale, which is the building block. Real plans stack a few things on top of it, and it is worth knowing the vocabulary.

Tiered rates. The rate rises as you sell more, and crucially it usually applies band by band rather than retrospectively. On a plan paying 3 percent up to 50,000, 5 percent to 100,000, and 8 percent above, someone selling 150,000 earns 1,500 plus 2,500 plus 4,000, which is 8,000. Not 12,000, which is what running the whole 150,000 at the top rate would give. The blended rate is 5.33 percent. Running a tiered plan as though the top rate applied to everything overstates by 4,000 on that example, and it is a mistake people make in both directions when forecasting their own year.

To work a tiered plan out here, run each band separately and add the results.

Base plus commission. A salary underneath the variable pay. The combination is usually quoted as on-target earnings, or OTE, which is base plus what you would earn at 100 percent of quota. OTE is not a salary and it is not guaranteed, which is worth remembering when comparing offers.

Draw against commission. An advance paid regularly and then recovered from future commission. A recoverable draw is effectively a loan, so a bad quarter can leave you owing money. A non-recoverable draw is a floor you keep regardless. The difference is enormous and the word in the contract will be one or the other.

Accelerators and caps. An accelerator lifts the rate above quota, sometimes sharply, which is where high earners make their money. A cap stops commission accruing past a ceiling, and its existence tends not to feature prominently in recruitment conversations.

Clawbacks. Commission recovered if a customer cancels or refunds within some window. Ordinary in subscription businesses and worth knowing the length of.

Splits. Where a deal involved several people. Common in real estate, where a commission is split between brokerages and then again between broker and agent, so the headline percentage on a property sale bears little relation to what any one person receives.

Commission counts toward your overtime rate

This one is worth knowing because it is money people are owed and frequently do not receive.

In the United States, overtime is not calculated on your base hourly rate. It is calculated on your regular rate, which the Department of Labor defines as total compensation for the workweek, minus certain statutory exclusions, divided by the hours actually worked.

Commissions are part of total compensation. So are nondiscretionary bonuses and shift differentials. If you are a non-exempt employee who earns commission and works more than 40 hours in a week, your overtime premium should be calculated on a rate that includes it, not on your base hourly rate alone.

Where a commission is earned over a longer period than a single week, the Department's guidance is that it gets apportioned back across the weeks it was earned in, and the overtime premium recalculated for each of those weeks. That is genuinely fiddly, which is part of why it gets skipped.

If your payslip shows overtime at exactly 1.5 times your base rate in a week where you also earned commission, that is worth asking about. Our time and a half calculator has a worked example of what the difference comes to.

None of that applies outside the United States, where overtime rules come from national law or your contract instead.

Questions people ask

How do I calculate commission on a sale?

Multiply the sale by the rate as a decimal. A 5,000 sale at 5 percent pays 250. To go the other way, divide the commission by the sale and multiply by 100.

Can it handle tiered commission?

Not in one go. Run each band as its own calculation and add the results. Remember the higher rate applies only to the sales inside that band, not to everything.

What is a typical commission rate?

Genuinely depends on the industry and the base. Rates on gross profit run far higher than rates on revenue for the same take-home. There is no useful universal figure, and anyone quoting one is comparing plans that are not comparable.

Does it include base salary?

No, it calculates the commission element only. Add your base separately for total earnings.

Is commission taxed differently?

It is ordinary income and taxed as such, though it may be withheld at a different rate when paid as a lump, which can make a single payment look more heavily taxed than it eventually is. It settles up when you file.

My commission came in lower than I expected. Why?

Run it backwards to find the effective rate, then check it against the likely causes: a different base (net of tax, or gross profit rather than revenue), a discount applied to the sale, a tier boundary, a split, or a clawback from an earlier deal.

What is a draw against commission?

An advance you receive regularly and repay out of future commission. If it is recoverable, a weak period leaves you owing the difference. If it is non-recoverable, you keep it. Check which word is in your contract.

References

A note on sourcing. Commission arithmetic is definitional, but the treatment of commission in overtime pay is not. The regular rate definition and the rule that commissions form part of it are set out by the Wage and Hour Division of the US Department of Labor in the fact sheets below, with the underlying regulations at 29 CFR Part 778.

1. U.S. Department of Labor, Wage and Hour Division, Fact Sheet #56A: Overview of the Regular Rate of Pay Under the Fair Labor Standards Act. https://www.dol.gov/agencies/whd/fact-sheets/56a-regular-rate
2. U.S. Department of Labor, Wage and Hour Division, Fact Sheet #23: Overtime Pay Requirements of the FLSA. https://www.dol.gov/agencies/whd/fact-sheets/23-flsa-overtime-pay
3. U.S. Department of Labor, Wage and Hour Division, Fact Sheet #56C: Bonuses Under the Fair Labor Standards Act. https://www.dol.gov/agencies/whd/fact-sheets/56c-bonuses