Wages are now the largest cost in a UK full-service restaurant, absorbing 37.5% of revenue — against 28.3% for purchases and 14% for rent — leaving an average profit of just 6.3% (industry research, 2025). For comparison, the wider hospitality sector spends 31.1% on wages and keeps 11.8% in profit. Restaurants run the leanest margin in the room.
The wage line is growing faster than the top line
Two forces pushed labour to the top of the cost stack. The National Living Wage rose 6.7% to £12.21 an hour for over-21s, and employer National Insurance contributions jumped sharply from April 2025 — together adding at least £2,500 a year to the cost of a single full-time employee, according to UKHospitality. Because table service is inherently labour-intensive, full-service restaurants carry this rise harder than cafés or quick-service formats. On current trends the wage ratio is projected to keep climbing, passing 40% of revenue by 2027-28.
Purchases: inflation has eased, not reversed
Food and drink purchases take 28.3p of every pound. Prices soared 21.6% between January 2022 and October 2023 and have never come back down; they are simply rising more slowly. Individual lines still spike violently — beef rose about 43% between January and October 2025 on tight supply, and seafood and rapeseed oil followed similar paths. Operators are responding with shorter menus, seasonal rewrites and local sourcing, which cut both purchase cost and waste. UK restaurants still bin roughly 199,100 tonnes of food a year, so the waste line remains one of the few costs entirely within an operator's control.
Rent, utilities and the quiet costs
Rent averages 14% of revenue — double the hospitality sector norm — because restaurants pay a premium for footfall and often sign shorter leases with upward-only reviews. Average commercial property costs in England rose about 19% year on year to £112 per square foot. Utilities, depreciation, marketing and insurance make up the balance, and each has crept upward with energy prices and refurbishment cycles. What is left after everything is the industry's 6.3% margin: about £53,000 of profit for the average business.
Operator takeaway
Cost control is no longer a back-office habit; it is the business model. Restaurants that schedule labour against actual booking data, shorten their menus and price with discipline are the ones holding margin above the 6.3% average. Know your own wage ratio to the decimal — it is the single number that decides whether a busy service was actually profitable.