How to Tell If Your Business Is Losing Money on Discounts

Almost every business gives discounts, and almost none know how much they actually cost. They don't show up as an expense on the income statement, they don't have their own account, and nobody reviews them at month end. They're just there, spread across hundreds of sales, quietly eating into the margin on each one. And because a discount is given to close the sale, it feels like something that helps, not something that costs.

Why a small discount hurts more than it looks

Here's the part almost nobody calculates. If you sell something for a hundred pesos and your margin is thirty percent, you make thirty. If you give a ten percent discount, you didn't lose ten percent of your profit: you lost ten out of thirty, which is a third. To get back to the same profit, you'd have to sell fifty percent more units. That's the real problem with discounts in a normal-margin business: they look small from the outside and are enormous on the inside.

And they're rarely just one. The list-price discount stacks with the special volume price, plus the one the salesperson authorized to close the deal, plus the freight that got absorbed, plus the extra days of credit, which is also money. Each one was approved separately and with good intentions. Added up, there are sales that close at a loss that nobody catches because they're never reviewed one by one.

The four questions you need to answer

• What percentage of last month’s sales carried some kind of discount, not just the ones that were on promotion.
• What the average discount was, and especially the highest one that was authorized and who authorized it.
• Which customers always get a discount, so consistently that it has become their real price.
• How much profit you would have made last month if every sale had closed at list price.

That last number is usually the one that causes silence in meetings. In many SMBs, the discounts given out over the year add up to several months' worth of profit. It's not that the business sells too little: it sells well and gives away part of the margin without keeping track.

A ten percent discount doesn't cost you ten percent. It costs you a third of your profit if your margin is thirty percent.

The discount that became a habit

There's one especially expensive case: the customer who has been getting the same ten percent for three years. They no longer ask for it, they just expect it. Nobody remembers why it was given; it was probably for a one-time bulk order, negotiated by someone who doesn't even work there anymore. That discount became part of the price, and removing it now feels like a price increase.

The way to fix it isn't to remove it all at once. It's to tie it to something: you keep the price if the volume holds, if you pay on time, if the order comes in with enough notice. That way the discount goes back to being what it should have been — an exchange — instead of an inherited concession nobody dares to revisit.

Why you have to look for it on purpose

The practical obstacle is that this information exists, but it's scattered. It's in the sales notes, in the emails where the special price was authorized, in each salesperson's judgment. Gathering it by hand takes days, which is why it never gets done. By the time someone finally reviews it, the quarter has already closed and the money is already gone.

With custom software that logs every sale along with its discount and real margin, this stops being a project and becomes a report. You can see margin by customer, by salesperson, and by product without asking anyone for anything, and catch the pattern while there's still time to fix it. Many owners discover that their best-selling product is also the one that makes the least, precisely because it's the one that gets discounted the most.

What to do with what you find

This isn't about banning discounts. It's about making them a decision instead of a reflex. Set a clear limit on how much each person can authorize, require anything above that to be justified in a line, and review the margin per sale once a month. With just that — no price changes, no pressure on the team — almost any business recovers several points of profit that were already theirs.