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What a Flat White Really Costs: Cup Economics for UK Coffee Shops

The average UK latte now sells for £3.76 — up 35% in five years, per the Guardian's reporting in March 2026. Customers grumble about it. Some assume you're pocketing three quid a cup.

You know better. But do you know the exact number? Most café owners we meet can recite their bean price per kilo and still can't say, to the penny, what a flat white costs to put over the counter — or what's genuinely left once HMRC, the landlord and the rota have taken their share.

So let's build one. Properly, line by line, with a number at the bottom you can compare against your own. It's the single most useful piece of arithmetic in your business, because every pricing decision, every menu change and every "can we afford another barista?" conversation sits on top of it.

For business owners who want to take this further, our complete guide to accounting for coffee shops can help you put it into practice.

First, the bit that isn't yours: VAT

Before we cost a single gram of coffee, remember that hot drinks are standard-rated at 20% VAT — eat-in or takeaway, no exceptions. That means roughly a sixth of every hot cup's price goes to HMRC.

On a £3.76 flat white:

That 63p never belonged to you. You're collecting it. Owners who price and plan as if the full £3.76 is theirs are the ones shocked by their first big VAT quarter — we cover the pricing side properly in how to price your coffee menu.

Everything below is measured against the £3.13 you actually keep.

The direct cost build: a £3.76 flat white

Here's a worked illustration for a takeaway flat white — an 18g dose, roughly 200ml of steamed milk. Ranges reflect what specialty-leaning independents typically pay; swap in your own invoice prices.

ComponentTypical buildRealistic rangeNotes
Coffee: 18g dose55p50p–63pRoasted beans at £28–£35/kg (18g × £28 = 50p; 18g × £35 = 63p)
Milk: ~200ml22p20p–25pWhole dairy; alt milks cost more (see below)
Cup, lid18p10p–50pNear-nil for eat-in ceramics; premium compostables push the top end
Wastage allowance10p5p–12pDialling in, purged milk, remakes, spoilage
Direct cost per cup£1.05roughly 80p–£1.20

So the drink that sells for £3.76 costs around £1.05 in direct, marginal cost — the money that walks out the door with the cup.

Related reading: Coffee Shop Profit Margins UK: What's Realistic — and How to Beat It.

Now the per-cup picture:

The £3.76 flat whitePer cup
Menu price£3.76
VAT to HMRC−£0.63
Net revenue£3.13
Direct cost (beans, milk, cup, wastage)−£1.05
Gross profit£2.08

That's a gross margin of about 66% of net revenue. Decent — but notice it sits below the 75–80% gross profit that's long been the typical industry benchmark for espresso drinks. That's not sloppiness on your part. Green coffee is running at roughly double late-2023 prices, and the average menu price hasn't kept pace. At today's bean costs, an average-priced flat white simply can't hit the old benchmark. The gap is a pricing problem, not a barista problem.

Wastage: the line most owners skip

The 10p wastage allowance above deserves a word, because it's the line most cost-per-cup calculations quietly leave out.

Every morning you dial in the grinder — that's shots down the drain. Every steamed pitcher leaves milk behind. Remakes happen. Milk gets to date. None of it feels like much in the moment, but if 8–10% of your ingredients never reach a paying customer, your real bean cost isn't 55p, it's 60p, and across a year that's real money. Weigh your waste for one honest week and you'll never un-see it.

Related reading: How Much Does a Coffee Shop Make in the UK? (Real Numbers).

Gross profit isn't the same across the menu

The flat white is your workhorse, but your till sells a mix, and the margins vary wildly by category. Typical industry benchmarks:

That mix matters more than any single price. Two cafés with identical footfall can have very different months purely on the balance of drinks, food attachment and retail bags.

Alt milk: surcharge or absorb?

Oat and other alternative milks cost more per litre than dairy — check your own invoices for the exact gap, because it moves. The maths is simple either way: take the per-litre difference on your invoice and divide by five for a 200ml serve. That's what each oat flat white costs you extra.

Then it's a genuine choice, not a moral one:

Related reading: The Coffee Shop Business Plan Lenders Actually Read.

The only wrong answer is absorbing it without repricing anything and letting the margin quietly leak. Decide on numbers, not on Twitter sentiment.

From gross profit to actual profit per cup

Here's where "£2.08 profit per cup!" gets humbled. Gross profit still has to feed everything else. Using typical industry benchmarks against your £3.13 of net revenue:

Per cup (£3.76 flat white)Amount
Net revenue after VAT£3.13
Direct cost−£1.05
Labour at ~32% of net sales−£1.00
Rent at ~12%−£0.38
Utilities at ~4%−£0.13
Left before everything else£0.57

And "everything else" is a long list: card fees, insurance, business rates, marketing, repairs, accountancy, software, waste collection. Which is why a typical independent café nets 3–8% (industry estimate) — on this cup, that's somewhere between 9p and 25p of actual profit. For where that sits against what coffee shops actually make in the UK, the wider picture is just as sobering.

Read that again. A £3.76 flat white, made well, typically puts less than a 20p coin in the owner's pocket. It's why "just sell more cups" is such a brittle strategy, and why the margin has to be engineered deliberately — we go deeper on that in coffee shop profit margins UK.

Per-cup thinking vs per-day thinking

One caution before you laminate your cost card: labour and rent aren't really per-cup costs. Your barista costs the same £15+ an hour whether they pour 20 flat whites or 40. Rent doesn't flex with footfall.

So use each lens for what it's good at:

The owners who do best hold both: a cost card they trust, and a weekly habit of checking real numbers — sales, labour %, gross profit by category — rather than glancing at the bank balance. It's exactly the rhythm we build with café clients, because unlike traditional accountants who file your returns once a year and disappear, we work with you month by month on the numbers that decide whether that 9p becomes 25p.

Do the build for your own menu

Every number above is a worked illustration. Yours will differ — your dose, your beans, your milk deal, your rent. That's the point: run the same build with your own figures for your top five sellers. (We're building a free Cost-per-Cup Calculator that does the table above for every drink on your menu, VAT included — it'll join our other free coffee shop tools soon.)

And if the number at the bottom worries you, our free strategic meeting is a good place to work out what to do about it. No pitch — just your cup economics, done properly.

Ready to take action? get a free strategy session worth £180.