Discounts and Commission: How to Stop Discounting From Eating Your Margin

How do discounts affect sales commission?

It depends on what commission is paid on. On list price, a discount costs the company and not the rep. On net price, the rep loses commission in proportion to the discount, but the company loses far more in gross profit. On gross margin, the rep feels the discount in the same proportion as the company does, which is why margin-based commission solves most discounting problems.

This guide is for sales leaders, finance teams and founders who see deals closing at lower and lower prices. It shows why discounts eat margin faster than they eat revenue, compares commission on list price, net price and margin with worked examples in USD and EUR, explains discount bands and approval thresholds, and covers subscription discounts, edge cases and the mistakes that make discount rules backfire. It also includes a new break-even model and data from public job ads on how companies talk about negotiation and margin.

Key findings

• 33.3% more volume is needed to earn the same gross profit after a 10% discount when the gross margin is 40%. At a 20% discount, volume has to double.
• 25.0% of gross profit disappears with that 10% discount, while commission on net price falls by only 10%. That gap is why reps discount more easily than finance would like.
• 28.5% of 2,375 open sales job ads in Prowi's dataset ask reps to negotiate (2 November 2026).
• 1.9% of the 517 ads that mention commission also mention margin, and none of them says commission is paid on margin.
• $1,464 in lost commission from a $400 bigger discount, when a rep crosses a discount band in our example. Hard band edges create their own games.

Why do discounts eat margin faster than revenue?

Because the discount comes straight off the gross profit, while the cost of what you sold stays the same. A 10% discount on a product with a 40% gross margin cuts revenue by 10% but gross profit by 25%. To earn the same gross profit you need to sell a third more.

The formula is simple. If the gross margin is m and the discount is d (both as a share of list price), the extra volume you need to keep gross profit unchanged is d / (m - d). The table applies it to common margins and discounts. It is a model, not survey data: every number follows from the formula.

Two things stand out. Low-margin businesses such as distribution, hardware and services can barely afford discounts at all: at a 20% margin, a 20% discount leaves no gross profit, so no volume can make up for it. High-margin software can absorb more, but even at 80% a 20% discount needs a third more volume. Every discount is a bet that it wins a deal you would otherwise lose, or wins it bigger.

How much is a tighter discount policy worth?

Often more than any price increase you could push through. In our model, a company with $5,000,000 in list-price bookings and a 40% gross margin keeps $200,000 more gross profit a year if the average discount falls from 12% to 8%. It pays $20,000 more in commission for it, because reps on net-price commission earn more on higher prices.

The assumptions, all labelled: $5,000,000 a year in bookings at list price, a 40% gross margin at list, commission at 10% of net price, and the same volume before and after. At a 12% average discount, net revenue is $4,400,000 and gross profit is $1,400,000. At 8%, net revenue is $4,600,000 and gross profit is $1,600,000, which is 14.3% more. Commission rises from $440,000 to $460,000. Even if the tighter policy loses 5% of deals, list bookings fall to $4,750,000 and gross profit is $1,520,000, still 8.6% above where it started.

The effect depends heavily on margin. The table compares two companies that both cut their average discount from 12% to 8%.

For the software company, four points of discount are worth $80,000 a year: real money, but discount bands on net price are enough to capture it. For the distributor, the same four points are worth $800,000 and almost a third of its gross profit. That is the kind of business where commission on margin pays for the work of setting it up many times over. Run your own numbers with your bookings, margin and current average discount before you choose a basis.

Should commission be paid on list price, net price or margin?

Net price is the minimum: never pay commission on a price the customer did not pay. Margin is the best match for the company's interest when reps influence price and cost data is reliable. List price only makes sense when reps cannot discount at all.

See the commission basis and gross margin commission glossary entries for the definitions, and the gross margin commission model for an interactive example.

Worked example: the same discounted deal paid three ways (USD)

A deal lists at $100,000 with a cost of $55,000. The rep gives a 15% discount, so the customer pays $85,000. On list price the rep still earns $10,000. On net price, $8,500. On margin, $6,000, a 33.3% drop that exactly matches the drop in the company's gross profit.

The company's gross profit falls from $45,000 to $30,000, which is 33.3%. Only the margin basis makes the rep share that drop in full. The margin rate is higher (20%) because it is paid on a smaller number; set it so that a deal at your normal price pays roughly what the old plan paid. Here a full-price deal pays $9,000 on margin against $10,000 on net, so the company would need a slightly higher margin rate, or accept a small cut in target earnings, when switching.

Worked example in EUR: a distributor with thin margins

A distributor sells equipment with a 25% gross margin. A rep closes a €200,000 order at list price, which leaves €50,000 in gross profit. If the rep gives 10%, the customer pays €180,000 and gross profit falls to €30,000, a 40% drop. On a 3% net-price plan, the rep's commission goes from €6,000 to €5,400, a 10% drop. On a 12% margin plan, it goes from €6,000 to €3,600, the same 40% drop as gross profit. This is why distribution and wholesale businesses in particular should look at margin-based commission: with thin margins, revenue-based commission rewards exactly the deals that hurt most.

How do discount bands that lower the rate work?

Discount bands keep commission on net price but lower the rate as the discount grows. They are a good first step away from revenue-based commission, because they need only one extra field (the discount %), but hard band edges create a cliff that reps learn to play.

The cliff at the band edge, and a smoother alternative

With hard bands, a rep at a 10% discount earns $5,760. Give half a point more, 10.5%, and the rate drops to 6%, so the commission is $4,296. A $400 bigger discount costs the rep $1,464. Reps quickly learn to stop at exactly 10%, and to argue hard about rounding. A linear reduction avoids the cliff: here the rate starts at 10% and falls by 0.2 percentage points for every point of discount.

The linear version is fairer at the edges and still makes discounting expensive. It is harder to do in your head, so show the rep the commission at the current discount on every deal before they send the quote.

Which approval thresholds should you set for discounts?

Set approval levels by discount size, so small discounts stay fast and large ones get a second look from someone who sees the margin. Tie the commission rule to the same thresholds, so an approved exception is paid the way the approver intended.

The levels in the table are an example. Set yours from your margins (see the break-even table above) and your sales cycle. The rule that matters most: the approval and the commission effect are decided at the same time, by the same person, and recorded on the deal.

What does a commission statement with discount rules look like?

A clear statement shows the base commission, each adjustment and the final amount on separate lines, so the rep can see what each discount cost. Here is a month for a rep on net-price commission with discount bands.

When the rep can see the $1,200 the discounts cost while the period is still open, the next quote looks different. A statement that only shows $7,600 at the end of the month teaches nothing.

Why does margin-based commission solve most of the problem?

Because it pays the rep a share of the money the company actually keeps. Every extra point of discount reduces commission by the same share as it reduces gross profit, and a deal with a higher price or a better product mix pays more, without any extra rules.

Margin-based commission also handles things discount rules miss: freight the rep promised for free, a cheaper product swapped in, a bundle with a low-margin item, or a special purchase price from a supplier. Each of those changes the margin, so each one changes the commission automatically. See margin-based commission and the key account manager commission plan for a full example on gross margin.

What margin-based commission needs

• Cost data per deal. Standard cost per product in the CRM or ERP is usually enough. Actual cost per order is more precise but often arrives late.
• A clear margin definition. Decide whether freight, payment fees, rebates and installation are in or out, and write it in the plan.
• A higher rate. Margin is a smaller number than revenue, so the rate must be higher to keep target earnings. Back-test it on last year's deals.
• A policy on what reps see. Reps will see margins. If that is sensitive, show the margin percentage band or the commission per deal instead of the cost price.

When is margin-based commission the wrong answer?

It is the wrong tool when reps do not influence price or product mix, when cost data is unreliable or late, or when margins are so high and stable that the discount is the only variable. In those cases, net price with discount bands or approval rules does the job with less data.

• Software with 80% to 90% gross margins. The margin barely changes between deals, so discount bands on annual contract value are simpler and say the same thing.
• Costs set after the sale. Project businesses where cost is only known at delivery should pay a provisional commission on estimated margin and true it up when the project closes.
• Reps without pricing authority. If prices are fixed centrally, margin-based pay punishes reps for decisions they did not make.

How do you handle discounts in subscription and SaaS deals?

Pay on the contracted annual value after all discounts, and decide in advance how free months, ramped pricing and prepayment discounts count. Most disputes in SaaS discounting come from deals where the first-year price differs from the steady-state price.

For multi-year deals, see the multi-year deal commission plan and the contract-term multiplier. For the line between new business and expansion when a discounted customer grows, see commission on new business vs existing customers.

Which basis fits your role and company type?

The right basis follows how much pricing power the rep has and how much margins vary between deals. The table is a starting point, not a rule.

How do job ads talk about negotiation and margin? New data

Sales job ads ask reps to negotiate far more often than they mention margin. Of 2,375 open sales ads, 28.5% mention negotiation and 2.4% mention margin. Among the 517 ads that mention commission, ten mention margin, and none of them says commission is paid on it.

The data comes from Prowi's jobstore, a dataset of public job ads from company career pages, read on 2 November 2026. We included open ads for selling roles (879 companies), left out recruitment agencies, and searched the ad text in English and the Nordic languages. We read the ten commission ads that mention margin by hand.

Of the ten commission ads that mention margin, four make margin part of the rep's job ("protect company margins", targets that include margin), and six use the word about the company's product or market. None describes a margin-based commission plan. That fits what we see in plans: companies expect reps to defend price but pay them on revenue, which is exactly the setup in which discounts are cheap for the rep and expensive for the company. Keyword search is approximate, and many companies describe their plan only after hiring.

Which edge cases should a discount policy cover?

Discounts hide in more places than the price field. Write a rule for each of these, or reps will find them before you do.

What are the most common mistakes with discounts and commission?

The most common mistakes are paying on list price, setting bands with hard cliffs, approving discounts without deciding the commission effect, and switching to margin without back-testing the rates. Each one is cheaper to fix in the plan than in a dispute.

1. Commission on list price. The company pays for every discount, and reps have no reason to hold price.
2. Hard band edges. As the example shows, a half-point change can cost the rep more than the discount itself. Use a linear reduction, or very few bands.
3. Approvals without a commission rule. A manager approves a 25% discount to win a deal; the rep then argues the approval should keep the full rate. Decide both at once.
4. Margin rates not back-tested. Switching to margin at the wrong rate cuts target earnings, and the best reps leave.
5. Hidden discounts ignored. Free services and extra licences cost margin too.
6. Credit notes not corrected. A discount given after invoicing must reduce commission, or the rule is easy to get around.
7. No visibility before the quote. If reps only see the effect at month-end, the rule changes nothing.

How do you move from revenue-based to margin-based commission? Step by step

Get reliable cost data first, back-test a margin rate on last year's deals, run both plans side by side for one period, and then switch with written notice. The goal is the same target earnings for the same performance, paid on a better measure.

1. Check the data: Make sure every deal or order line has a cost, from standard cost in the CRM or actual cost from the ERP, and decide what is included in margin.
2. Calculate last year's margin: Work out each rep's gross profit for the last 12 months next to their revenue and commission.
3. Set the margin rate: Choose the rate that would have paid each rep's target earnings at their normal margin. Check the spread: reps with low margins will earn less, which is the point, but be ready to explain it.
4. Add a transition rule: For example, a guarantee that no rep earns less than 90% of what the old plan would have paid in the first quarter.
5. Run in parallel: Show both numbers on the statement for one period without paying the new one.
6. Give written notice: Change the plan with the notice your contracts and local law require, and update the written plan.
7. Make margin visible per deal: Show reps the margin and commission on each deal while they quote, not after the period closes.

You can test the effect on a single deal with our free commission calculator or see all commission calculators, and check the rest of the plan with the commission plan health check.

What do the rules say in the US, UK and EU?

No law tells you to pay commission on margin or revenue, but changing the basis is a change to pay, and in many places the commission method must be in writing. This is general information, not legal advice; check with local employment counsel.

• United States. Rules differ by state. California Labor Code section 2751 requires commission contracts to be in writing and to set out how commissions are computed and paid, so discount bands and margin definitions belong in the written plan.
• United Kingdom. Commission counts as wages under section 27 of the Employment Rights Act 1996. Reducing earned commission after the fact, for example for a late credit note, needs a clear contractual basis.
• EU and the Nordics. Directive (EU) 2019/1152 requires written information on remuneration and its components. Moving from revenue to margin is usually a material change, so give notice and update the written terms.

How does Prowi handle discounts and margin?

Prowi calculates commission from your CRM or ERP data, and any field on the deal can drive a rule, such as the discount, the cost or the margin. Reps see the commission on each deal in the app as it changes, and credit notes or reduced deals land as corrections on the next statement.

When a period starts, Prowi creates a statement for each rep that updates live through the period, with each deal's basis, rate and any discount adjustment on its own line. When the period closes, the statement goes to approval, and approved commission is added to the rep's balance and passed on to payroll, straight into Zenegy or as a payroll file. Book a demo to see a margin-based or discount-band plan on your own data.

FAQ

Should sales commission be based on gross margin or revenue?

Gross margin when reps influence price or product mix and cost data is reliable, because the rep then shares the effect of every discount in the same proportion as the company. Revenue (net price) is simpler and works when prices are fixed or margins are high and stable.

Do discounts reduce sales commission?

Only if commission is paid on net price or margin. On list price, a discount does not change the commission at all. On net price, commission falls by the same percentage as the discount. On margin, it falls by the same percentage as gross profit, which is usually much more.

How do you stop sales reps over-discounting?

Pay commission on net price or margin, add a rate reduction for larger discounts, set approval levels by discount size, and show reps the commission effect before they send the quote. Treat free extras and later credit notes as discounts too.

What is a discount band in a commission plan?

A rule that lowers the commission rate as the discount grows, for example 10% up to a 5% discount, 8% up to 10% and 6% up to 15%. Hard band edges create cliffs, so it is often better to use few bands or a linear reduction instead.

How do you calculate commission on gross margin?

Subtract the cost of what was sold from the net price to get gross profit, then multiply by the margin commission rate. Example: $85,000 net price minus $55,000 cost is $30,000 gross profit; at 20% the commission is $6,000.

Should commission be reduced when a discount is approved?

Usually yes, through the normal band or margin rule. If the company wants a strategic deal at a deep discount, the approver can mark it as an exception and decide the commission at the same time, in writing, on the deal.

Sources

• Break-even model: Prowi calculation, extra volume = d / (m - d), where m is gross margin and d is discount as shares of list price
• Prowi jobstore, public job ads from company career pages, read 2 November 2026 (2,375 open sales ads at 879 companies, recruiters excluded; 517 ads mention commission)
• California Labor Code section 2751
• UK Employment Rights Act 1996, section 27
• EUR-Lex: Directive (EU) 2019/1152 on transparent and predictable working conditions