Written by: JJ Tan, Founder, Jelly | Last updated: 22 June 2026
Key Takeaways for UK Restaurant Margins
- UK restaurants lose 10–20 hours monthly to manual spreadsheet costing while food inflation of 3.7% (and rising) quietly erodes margins.
- GP calculations must always use net (ex-VAT) selling prices. Using VAT-inclusive menu prices produces falsely low margin figures.
- Full-service restaurants should target 65–70% GP. Anything sustained below 60% signals a structural costing problem.
- Accurate GP requires live ingredient costs, wastage factors and sales-mix analysis. Manual methods cannot keep pace with daily price changes.
- Jelly automates invoice capture, real-time costing and Sales Mix reporting so you can protect margins without the spreadsheet burden. See how it works in your kitchen.
The Correct GP Margin Formula for UK Restaurants with VAT
Sage defines the gross profit margin formula as: (Selling Price – Cost of Goods Sold) ÷ Selling Price × 100. The critical detail for UK operators is that restaurant meals served on the premises are subject to the standard 20% VAT rate, which means the customer-facing menu price is VAT-inclusive. VAT must be stripped out before any GP calculation runs.
| Step | Description | Formula |
|---|---|---|
| 1 | Menu price (VAT-inclusive) | £18.00 |
| 2 | Net selling price (ex-VAT) | £18.00 ÷ 1.20 = £15.00 |
| 3 | Food cost (CoGS) | £4.95 |
| 4 | Gross profit (£) | £15.00 – £4.95 = £10.05 |
| 5 | GP margin (%) | £10.05 ÷ £15.00 × 100 = 67% |
Using the gross (VAT-inclusive) price instead of the net price inflates the denominator and produces a falsely low GP figure, which is one of the most common errors in restaurant costing.
GP Margin Benchmarks for Different UK Restaurant Models
Full-service restaurants typically target a gross profit margin of 65–70%, which corresponds to a food cost percentage of 30–35%. Pacific ABS recommends keeping food costs at 28–35% of food sales to support a healthy gross margin, and notes that a 2% swing in food costs can determine whether a restaurant makes a profit or a loss.
The 65–70% range is not universal. Bars and pubs typically target 70–80% GP, cafés 65–85% and ghost kitchens 70–85%. Delivery operations face additional pressure. Platforms such as Deliveroo and Uber Eats charge average commissions of around 30%, which compresses delivery GP well below dine-in targets unless separate pricing is applied.
For established UK full-service restaurants with revenues above £500k, 65–70% GP is the operational baseline. Falling below 60% on a sustained basis signals a structural costing problem that requires immediate attention.
Five-Step Dish GP Calculation on a Salmon Main
Now that the target GP range is clear, you can see how it applies to a real dish. The following example costs a pan-seared salmon fillet, a typical mid-range UK main course priced at £22 on the menu.
| Step | Action | Figure |
|---|---|---|
| 1 | Record VAT-inclusive menu price | £22.00 |
| 2 | Calculate net selling price (÷ 1.20) | £18.33 |
| 3 | Sum all ingredient costs (salmon 150g, butter, capers, greens, garnish) | £5.50 |
| 4 | Apply wastage factor (for example 5% trim loss on salmon) | £5.78 adjusted cost |
| 5 | Calculate GP%: (£18.33 – £5.78) ÷ £18.33 × 100 | 68.5% GP |
This five-step process takes approximately 28 minutes per dish in a spreadsheet. In Jelly, the same calculation takes under three minutes because ingredient costs are pre-populated from scanned invoices and unit conversions are handled automatically.
Why Sales-Mix Analysis Drives Real Profit
A dish with a 72% GP margin contributes nothing to the business if it sells twice a week. Plotting menu item popularity against profitability reveals the sweet spots, dishes customers want that also make money. A high-margin dish with low volume can be outperformed in total contribution by a moderate-margin dish that sells 40 covers a night.
Jelly's Sales Mix view connects POS data directly to dish-level contribution margin. By integrating with Square, Lightspeed, EPOS Now and Toast in real time, Jelly surfaces which dishes drive actual profit, not just which ones look good on a recipe card. One operator improved gross profit from 65% to 72% within 12 weeks on approximately £500,000 in revenue after connecting their POS and acting on Sales Mix data.
See the Sales Mix report in action and discover which dishes are actually driving profit.
Common GP Mistakes That Hide Margin Loss
- Using VAT-inclusive prices as the selling price. This practice understates GP% by several percentage points on every dish.
- Ignoring wastage and trim loss. A 5–10% wastage factor on proteins can shift a dish from profitable to marginal.
- Using outdated ingredient costs. UK food inflation reached 5.1% in August 2025 before easing, so costs from three months ago can be materially wrong today.
- Omitting delivery commission from delivery menu pricing. Sushi Revolution sets separate GP targets for dine-in and delivery menus to account for 30% platform commissions, achieving actual GP 2–3% higher as a result.
- Failing to account for portion inconsistency. Recipes without fixed portion weights produce variable costs that make GP tracking meaningless.
Jelly's automated invoice scanning updates every ingredient cost the moment a new invoice is processed, by photo or email, so dish GP figures reflect today's prices, not last month's.
Manual Spreadsheets vs Automated Tools for GP Control
These mistakes often arise because teams rely on manual processes that cannot keep up with constant price changes. Manual spreadsheet costing requires a team member to locate each supplier invoice, extract line-item prices, update the relevant cells, recalculate affected recipes and check for errors. This process repeats every time a supplier changes a price.
Across a kitchen with 40–60 active SKUs and multiple suppliers, this work consumes the hours of admin mentioned earlier and still produces figures that are days or weeks out of date by the time they reach a manager.
Automated tools such as Jelly eliminate the data-entry layer entirely by capturing invoices on arrival, digitising every line item and updating dish costs in real time. This automation delivers two measurable benefits. It saves significant monthly admin that would otherwise be spent on manual data entry, and it improves gross margins by an average of 2 percentage points because costs stay current.
That 2-point improvement, the difference between running at 65% GP versus 67%, translates to an additional £10,000 in gross profit annually on £500k revenue. With restaurant and hotel prices continuing to rise, waiting for a monthly spreadsheet update no longer protects margins.
How Jelly Gives You Real-Time GP Visibility
Jelly is built around four interconnected capabilities that turn GP margin management from a weekly chore into a continuous, automated process.
- Automated Invoice Capture: Every invoice, received by email or photographed in the kitchen, is scanned line by line. Quantity, SKU, price and tax are extracted without manual input, and costs flow directly into dish recipes.
- Price Alerts: Every ingredient price movement is flagged instantly, with the supplier, the item and the percentage change clearly displayed. This gives chefs the hard data needed to negotiate credits or switch suppliers before margins slip.
- Flash Report: A daily, weekly or monthly GP summary is calculated from live invoice costs and POS sales data. No waiting for an accountant. No end-of-month surprises.
- POS Integration: Native real-time connections with the major UK POS platforms deliver item-level sales data the moment a transaction completes, feeding the Sales Mix view with accurate contribution margin figures.
Stuart Noble, Head Chef at Cairn Lodge Hotel, cut food costs by 5% within a month of using Jelly. Ruth Seggie, Owner of The Howard Arms, reached 80% gross profit after her accountant had forecast a ceiling of 60%. Amber restaurant in East London saves £3,000–£4,000 per month through faster supplier negotiations and tighter menu controls.
Jelly costs £129 per location per month, a flat rate with no per-user charges.
See how quickly Jelly sets up in your kitchen, most operators are live within days.
Frequently Asked Questions
How do you calculate GP for food?
Gross profit for a food item is calculated by subtracting the cost of ingredients (CoGS) from the net selling price, then dividing the result by the net selling price and multiplying by 100. For UK restaurants, the net selling price is the menu price divided by 1.20 to remove the standard 20% VAT. The formula is: GP% = ((Net Selling Price – CoGS) ÷ Net Selling Price) × 100. Always include wastage in the CoGS figure and use current ingredient prices, not historical ones.
What is a good GP for a restaurant?
For a full-service UK restaurant, a gross profit margin of 65–70% is the standard operational target, equating to a food cost percentage of 30–35%. Pubs and bars typically aim for 70–80% GP, while delivery-focused operations often run at 60–65% due to platform commissions. The right benchmark depends on your concept, location and cost structure. The more important measure is consistency. A GP that holds steady week-on-week indicates that costing, purchasing and portioning are all under control.
What are the most common mistakes in restaurant margin calculation?
The most frequent errors are: using VAT-inclusive menu prices instead of net prices, which artificially lowers the calculated GP; ignoring wastage and trim loss on proteins and fresh produce; relying on ingredient costs that are weeks or months out of date; failing to set separate GP targets for delivery menus that account for platform commissions; and not tracking sales mix, which means high-margin dishes with low volume go unnoticed while low-margin bestsellers quietly erode overall profitability.
Is 70% GP good for a restaurant?
Yes, 70% GP is a strong result for a full-service UK restaurant and sits at the top of the standard 65–70% benchmark range. It means 30p in every net revenue pound is spent on food, leaving 70p to cover labour, rent, utilities and other overheads before net profit. Achieving 70% consistently requires live ingredient costing, disciplined portioning and regular menu engineering. Some operators, particularly those using automated costing tools, exceed this figure. The Howard Arms reached 80% GP after implementing Jelly, though results vary by concept and cost base.
Conclusion: Move Away from Manual Margin Management
UK food inflation remains elevated, so every week without accurate, up-to-date dish costing allows margins to erode quietly. Manual spreadsheets cannot keep pace with daily price changes, and monthly accountant reports arrive too late to act on.
Jelly automates the entire workflow, from invoice capture to live dish GP to Sales Mix reporting, so UK restaurant operators have accurate margin data every single day without the admin burden. The average Jelly customer achieves the time and margin improvements outlined above within the first three months.
Take control of your margins with Jelly and replace manual spreadsheets with live GP visibility.