Guides6 min readJuly 14, 2026

How to Tell if Your Shop Is Actually Making Money

Busy is not the same as profitable. A plain guide to the three numbers that show whether your shop makes money, and the warning signs of a leak.

A cafe with a queue out the door closed last spring. The owner worked six days a week, the terrace was never empty, and the regulars were genuinely sad to see it go. He was also, it turned out, losing money on roughly a third of what he sold — and the busyness had hidden it for two years. Busy is a feeling. Profitable is a number. This guide is about finding that number with nothing more than a calculator and one honest hour a month, and about the warning signs that the number is quietly going wrong.

The Three Numbers: Sales, Costs, and What Is Left

Strip everything away and profit is three numbers. Sales: everything that came in this month — cash, card, and app payments combined. Costs: everything that went out to run the shop — stock, rent, utilities, wages, fees, loan payments. What is left: the first minus the second. A worked example. A small kiosk takes 7,800 euros in a month. Stock and supplies cost 4,300. Rent is 900, utilities and card fees 350, a part-time helper 600. Costs total 6,150, so 1,650 euros is left. Now comes the step most owners skip: subtract your own pay. If the owner needs 1,400 euros a month to live, the shop's true result is 250 euros. Positive — but thin, and worth knowing precisely. A shop that only looks profitable because the owner works for free is not profitable; it is running on an invisible subsidy that runs out exactly when the owner does.

The Invisible Costs: Your Time, Your Stock, Your Space

Three costs never pass through the till, and they quietly decide everything. Your time: sixty hours a week has a value even when nobody pays it. If the shop's surplus is smaller than a modest wage for those hours, the shop is effectively employing you below minimum wage. Your stock: goods on shelves are frozen cash, and some of that cash melts — expiry, damage, theft, the box that never sells. A shop that seems to make money while its stockroom silently fills with unsellable goods is leaking. Your space: if you own the premises, the rent you are not charging yourself is a real number, and a shop that only survives because its rent is free deserves to know that about itself. You do not need to calculate any of these to the cent. You need to look at them honestly once, and then remember they exist every time the monthly number looks comfortable.

A One-Page Monthly Profit Check

  • Write down total sales for the month, all payment channels combined.
  • Write down everything spent on stock and supplies.
  • Write down fixed costs: rent, utilities, insurance, subscriptions, loan payments.
  • Write down wages paid — including your own fixed pay, even if you had to estimate it.
  • Subtract everything from sales. That figure is the month's honest result.
  • Compare it with last month and with the same month last year. The direction matters more than any single number.

Warning Signs Your Shop Is Leaking Money

  • Sales keep rising but the bank balance never does — money is arriving and escaping somewhere between.
  • You skip paying yourself just this month more than twice a year.
  • The till comes up short more days than it comes up over — small gaps compound into real money.
  • Stock deliveries feel bigger but the shelves are not fuller: spoilage, theft, or over-ordering is eating the difference.
  • You need next month's sales to pay last month's bills — the classic sign of running behind your own costs.
  • You cannot name your three biggest cost lines without checking. What you cannot name, you cannot manage.

What to Do if the Answer Is No

First: a bad number is better than no number. The first honest month often looks worse than expected precisely because it is honest — do not panic, and do not make big decisions on one month of data. Then work in order of size. Start with the biggest cost line, because a 5 percent cut in a 4,000 euro cost beats a 50 percent cut in a 200 euro one: renegotiate with your main supplier, check your rent against similar units nearby. Next, look at prices. Many small shops have not raised prices in years out of pure habit, and a small increase on the top sellers usually meets far less resistance than owners fear. Then cut the tail — the slow-moving stock that ties up cash and expires on the shelf. Give the changes three months of measurement before judging them. And if, after three honest months, the number is still negative for structural reasons — rent too high for the street's footfall, a market that moved away — then knowing now, with time to adapt or exit on your own terms, is the entire point of doing the check.

This monthly check is for steering the shop — it is not formal accounting and not tax advice. Profit for official purposes is calculated differently, with depreciation, allowances, and local rules. Keep doing the check for yourself, and let your accountant produce the official version.

Profitability is not a mystery revealed at year-end; it is a habit of looking. The owners who know their number check it monthly, in the same simple format, and notice a leak in weeks instead of years. One page, five subtractions, one honest hour. The queue out the door is lovely — but the quiet 250 euros at the bottom of the page is what keeps the door open.

Try it

The monthly check only works if the daily numbers exist. If your team already posts sales and expenses in a WhatsApp group, ZapLedger adds them up for you — so the what-is-left number is waiting at month-end instead of being reconstructed from memory.

Try ZapLedger free