Food Cost Control for UK Restaurants: GP Targets, Waste Reduction and VAT Considerations

UK hospitality businesses typically talk about gross profit (GP) rather than food cost percentage. The two are mathematically linked but expressed differently:

GP % = (Revenue − Cost of Sales) ÷ Revenue × 100

Food Cost % = Cost of Sales ÷ Revenue × 100

If your food GP is 65%, your food cost percentage is 35%. The GP framing is more common in UK hospitality because it lines up with how accountants and investors read P&L statements, and because it makes the contribution to overhead and profit explicit: a 65% GP on £12,000 food revenue generates £7,800 toward payroll, rent and profit — before the kitchen has earned a penny.

UK operators typically track food GP and drink GP separately because the economics are very different:

UK VAT rules on food and hospitality are notoriously complicated and directly affect how you calculate gross profit if you are not separating your sales by rate correctly.

The key rates as of 2026:

• Cold food to take away: 0% — sandwiches, cold drinks (non-alcoholic under certain conditions), cakes and most cold food sold for consumption off the premises.
• Hot food and eat-in: 20% — anything served hot for consumption on the premises, or any hot food to take away. The "heated for consumption" rule is broad and catches items like rotisserie chicken, heated pies and toasted sandwiches.
• Alcohol: 20% — all alcoholic beverages regardless of where consumed.
• Non-alcoholic drinks to take away: 20% — smoothies, milkshakes and similar if sold in catering context.

The practical implication for cost tracking: your GP calculation must use net (ex-VAT) revenue throughout, and your cost of sales must also be tracked net. If you include VAT-inclusive revenue in your GP calculation without adjusting, you will overstate GP by the VAT fraction — around 16.7% for a 20% VAT item. For a business turning £600,000 in VAT-inclusive food and drink, that is a distortion of about £100,000 in reported revenue.

HMRC's VAT inspectors in hospitality look specifically at whether businesses are correctly apportioning between zero-rated and standard-rated supplies, and whether the method used is documented and consistent.

The mechanics of weekly GP tracking in a UK restaurant are the same as the general food cost formula — opening stock + purchases − closing stock = cost of sales — but the UK-specific elements are worth noting:

1. Separate your stocktake by VAT category: food and drink stocks are tracked separately because their GP targets and VAT treatment differ. A combined stocktake that lumps food and drink together is harder to use for VAT apportionment.
2. Use net supplier invoices: all purchase costs in your food cost calculation are net of VAT (the VAT you pay on purchases is recoverable as input tax and is not a cost). Your accountant or bookkeeper should be posting invoices net, but check — especially for smaller suppliers who quote inclusive prices.
3. Record weekly variance against your theoretical GP: your theoretical GP is calculated from your recipe costings and the number of covers or drinks served. The gap between theoretical and actual is your variance — waste, over-portioning, theft or price changes.
4. Post credit notes in the same week: returns and credit notes from suppliers should be posted in the week they relate to, not when the paperwork arrives. A credit note posted a week late shifts food cost between periods.

The article on restaurant management software UK covers the tools that automate the purchase posting and stocktake calculation so the weekly review focuses on the numbers rather than the data entry.

Food waste in UK restaurants has both a direct cost impact and an emerging regulatory dimension.

Cost impact: the Waste and Resources Action Programme (WRAP) estimates that the UK hospitality and food service sector wastes around 1.1 million tonnes of food annually, with a value of approximately £3.2 billion. For an individual restaurant, the WRAP estimate suggests that for every £1 spent on food, around 18 pence is wasted. A restaurant spending £8,000 a week on food is wasting around £1,400 a week before VAT recovery — roughly 2.5–3 percentage points of food cost.

Legal duties: UK food businesses have duties under the Environmental Protection Act 1990 and the Controlled Waste Regulations. Commercial food waste cannot go to general waste streams — it must be collected by a licensed waste carrier and disposed of through appropriate routes (anaerobic digestion, composting, or in some cases animal feed under specific conditions). Records of food waste disposal (waste transfer notes) must be kept for two years.

Practical reduction: the operations that reduce food waste systematically do three things: they weigh and log waste at the source (prep waste, plate returns, end-of-service discard) rather than estimating it; they adjust par levels and prep quantities based on actual cover counts rather than best-case scenarios; and they have a documented use-for-purpose policy for trim and off-cuts (the salmon trim that becomes the staff meal rather than the bin).

HMRC hospitality audits — whether for VAT, PAYE, or income tax — increasingly focus on whether the financial records are consistent with the scale of operations. The records that matter most for a restaurant:

• Z-readings and till records: HMRC expects to see daily Z-readings (or their electronic equivalent) that reconcile with bank deposits. A business that cannot produce Z-readings for the audit period is at immediate risk of a best-judgement assessment.
• Purchase invoices: all supplier invoices, credit notes and delivery notes for the audit period. These should reconcile with your GP calculation — if you are claiming high food costs but your purchases do not support them, HMRC will notice.
• Stocktake records: evidence that periodic stocktakes were done and that the closing stock figures in your accounts are based on actual counts, not estimates.
• Staff and payroll records: HMRC checks whether declared payroll is consistent with the number of covers served. A restaurant serving 250 covers a day with only two declared staff members raises questions.
• Waste records: increasingly, HMRC inspectors ask about food waste disposal — particularly whether waste disposal costs are consistent with a business of the declared revenue size.

The article on restaurant staff rota software UK covers the rota and time records that HMRC and Employment Tribunals specifically look for in the context of NMW compliance.

What is a good gross profit percentage for a UK restaurant?

For food, a typical target is 62–70% GP for casual dining and 60–68% for fine dining. For drinks, draught beer typically runs 55–65%, wine by the glass 65–75%, and spirits 70–80%. The combined blended GP for most UK restaurant operations runs in the 60–70% range, depending on the food/drink sales mix.

How does VAT affect food cost calculations in the UK?

Food cost calculations in the UK must use net (ex-VAT) figures on both sides — net revenue and net purchase costs. Including VAT-inclusive figures overstates revenue and distorts GP percentage. The complexity is in correctly apportioning revenue between zero-rated (most cold food to take away) and standard-rated (hot food, eat-in, alcohol) supplies.

How much does food waste cost a typical UK restaurant?

WRAP estimates that UK restaurants waste around 18p for every £1 spent on food. For a restaurant spending £8,000 a week on food, that represents approximately £1,400 a week in waste — roughly 2.5–3 percentage points of food cost. The cost is split between prep waste, plate waste, and over-production at end of service.

Does a UK restaurant need to keep records of food waste disposal?

Yes. Commercial food waste must be disposed of through a licensed waste carrier, and the business must retain waste transfer notes for at least two years under the Controlled Waste Regulations. Food waste cannot legally go to general commercial waste streams.

What records does HMRC look at in a restaurant VAT audit?

HMRC typically looks at Z-readings (till records) reconciled against bank deposits, supplier invoices and credit notes, stocktake records, and payroll evidence. They also assess whether the financial picture is consistent with the scale of operations — covers served, staff levels, and purchase volumes should all tell a coherent story.