Underpricing: What It Is, Why Businesses Do It, and How to Avoid Drowning in a Price War

Underpricing means deliberately setting prices below market level, sometimes even below your own cost, to lure customers away or push competitors out. It looks simple: make it cheaper than everyone else, and people come to you.

The difference between a calculated price cut and an uncalculated one comes down to math. Let's go through what a discount actually costs, how to do it deliberately, and what to do when a competitor is the one cutting prices.

In plain terms. Picture a street where every café charges $5 for coffee. One suddenly drops to $2.50. People start going there, but on every cup, that café either makes nothing or pays out of pocket. That's underpricing: luring people in with price right now, even while losing money on it.

What underpricing means, in plain terms

Underpricing is deliberately setting a price below market level in order to take customers from competitors or quickly claim a spot in the market.

The key word here is “deliberately.” Underpriced rates get set on purpose, with a specific goal in mind. And how well that goal has been thought through is exactly what determines the outcome.

Why businesses underprice

The last row differs from the rest in that there's no goal of your own behind it. The decision gets made based on someone else's move, and the consequences land on your margin. This is exactly the case worth calculating more carefully than the others.

How a discount affects margin

Here's the math that decides everything. When you cut a price, the cost of the service stays the same. Materials and labor cost just as much. So the entire discount comes straight out of margin.

The price got cut by 20%, and margin dropped by half. That's the disproportion: the thinner the margin, the more painfully every percentage point of a discount hits.

How much you need to sell to make up for a discount

Now let's calculate the volume increase. Say you were selling 100 services a month and had 100 × $40 = $4,000 in margin. To keep that same total with the new margin, volume has to grow.

Required volume = Old total margin ÷ New margin per service

Here's how to read this table: a 20% discount requires doubling volume just to stay at the same money. Not to earn more - to not lose. A 30% discount requires a fourfold volume.

On top of that, higher volume means more work, more materials, and more load on your team. So before announcing a discount, it's worth checking two things: whether the required increase is realistic, and whether your capacity can handle it.

Advice. Run this calculation for your own margin once and keep it on hand. It turns the conversation about a discount from “how many percent should we take off” into “how many customers does this actually need to bring in.”

Four rules for a calculated price cut

A deliberate price cut starts with knowing your own limit. That's three numbers: the service's cost, its margin, and the break-even point.

Rule 1. Don't go below variable costs

This is the absolute floor. In the example above, it's $60. Selling at $80, or even at $65, still brings in money, though not much. Selling at $55 means you're paying out of your own pocket for every customer.

Rule 2. Cut the price on idle capacity

If your main volume already covers rent and payroll - meaning you've passed the break-even point - then an empty slot brings in zero. Filling that empty slot with a customer at $75, against a cost of $60, gives you $15 that otherwise wouldn't exist at all.

An important condition: this works precisely because fixed costs are already covered by your core customers paying full price. If you haven't passed the break-even point yet, the math looks different.

Rule 3. Limit the discount by time and purpose

A discount should be a promotion with a clear end date and an understandable reason: a first month, a new service launch, the off-season. Without a deadline, it turns into a new permanent price, and going back to the old one becomes difficult.

Rule 4. Calculate the required volume increase

Before cutting the price, look at the table above and check how many additional customers you'll need. If the required growth looks unreachable, a discount of that size won't pay for itself, and it's worth looking for a smaller percentage or a different tool.

When a competitor cuts prices

The reverse situation. A competitor nearby has slashed prices, and customers are asking about it.

The least useful response is matching their price without doing the math. You don't know their numbers: they might have lower costs, or it might be a temporary promotion funded out of a reserve. In the first case, you need to work on your own costs; in the second, it's enough to wait out the promotion.

It also helps that calculating their floor gives you information about the market. If a competitor is holding a price you can't match, the difference is somewhere in the cost structure, and it's worth studying calmly.

Underpricing and a discount are different things

The practical difference is that a discount is calculated from margin, while underpricing is calculated from your safety margin. The first answers the question “how much of my profit am I willing to give up.” The second answers “how much am I willing to invest to get a place in the market.”

How to see your own limit before cutting a price

All of this math rests on two numbers: the cost of each service and its margin. You can calculate them by hand once, but when working with pricing, it helps to see the consequences before the price actually changes.

In BizCalc, that's what cost calculation and capacity simulation are for. The real floor for each service shows up immediately: the price below which every sale stops bringing in money. And through the simulation, you can run the scenario “what happens to profit if I drop the price by 20%”: how many additional customers that requires, and whether your capacity can handle it.

In other words, a price cut gets checked against the numbers before it's ever announced to customers.

What's worth remembering

• A discount shrinks margin disproportionately. A 20% price cut at a 40% margin slices margin in half.

• Calculate the required volume increase ahead of time. A 20% discount requires doubling sales just to keep the same money.

• Variable costs are the absolute floor. Go below them and every sale costs you money.

• The safest discount is on idle capacity. When fixed costs are already covered by core customers paying full price.

• Respond to a competitor's move with a calculation. You don't know their numbers, so copying their price without checking rarely works out.

Frequently asked questions

Are underpricing and a discount the same thing?

No. A discount is a calculated, temporary step where the price stays above cost and the business remains in the black. Underpricing is dropping below market level, sometimes below cost, in pursuit of market share.

How far can I actually drop my price?

The absolute floor is the variable costs of the service: materials and labor. The second number you need is the break-even point: it shows whether your core sales cover your fixed costs. With both in hand, you can calculate your limit precisely.

How much do I need to sell to make up for a discount?

Divide the old total margin by the new margin per service. At a 40% margin, a 10% discount requires roughly a third more volume, a 20% discount requires doubling it, and a 30% discount requires a fourfold volume.

What do I do if a competitor dropped prices below my cost?

Matching that price without losses isn't possible. First, figure out why: either they have lower costs, or it's a temporary promotion funded from a reserve. In the first case, work on your own costs; in the second, it's enough to wait it out.

Is underpricing legal?

Setting low prices between private businesses is generally allowed, but in certain cases, aggressive price cuts meant to push out competitors can fall under unfair competition law. It depends on the country and the situation, so consult a lawyer for specifics.

When is cutting the price justified?

When you have idle capacity, fixed costs are already covered by core sales, the discount is limited by time and purpose, and the required volume increase has been calculated and looks achievable.