A collaboration with an external Michelin-starred restaurant can elevate your hotel F&B significantly, but margin calculation is far more complex than regular catering. You're dealing with external costs, premium quality requirements, and often substantially higher purchase prices. The key lies in accounting for every hidden cost upfront.
Why external star collaboration is different
Working with an external Michelin-starred restaurant means you're not using your own recipes and suppliers. The starred restaurant typically sets strict requirements for ingredient quality, preparation methods, and presentation that your regular hotel kitchen isn't accustomed to.
⚠️ Heads up:
Michelin chefs often work with premium suppliers that are 20-40% more expensive than your current purchasing. Factor this in beforehand.
Mapping out all cost items
A complete margin calculation for this collaboration consists of more than just ingredients. You need to account for:
- Ingredients according to starred restaurant specifications
- Extra staff or training of existing staff
- Special equipment or kitchen utensils
- License or collaboration fees to the starred restaurant
- Marketing and promotional costs
- Possible quality checks by the starred restaurant
💡 Example:
Hotel De Luxe collaborates with restaurant De Ster for a 5-course menu at €85 per person:
- Ingredients (premium): €28 per person
- Extra head chef (3 evenings): €150 per evening = €450
- License fees: €5 per person
- Marketing: €500 for entire campaign
With 60 guests over 3 evenings: total additional costs €2,950
The margin formula for external collaboration
The formula becomes: Margin % = ((Selling price - All direct costs - Allocated fixed costs) / Selling price excl. VAT) × 100
Where all direct costs consist of:
- Ingredients per person
- License/collaboration costs per person
- Extra staff per person (total costs / number of guests)
- Marketing per person (total costs / number of guests)
💡 Example calculation:
Menu €85 incl. 9% VAT = €77.98 excl. VAT
- Ingredients: €28
- License: €5
- Extra staff: €450 ÷ 60 = €7.50
- Marketing: €500 ÷ 60 = €8.33
Total costs: €48.83 per person
Margin: ((€77.98 - €48.83) / €77.98) × 100 = 37.4%
Realistic margin expectations
With external star collaboration, the margin is usually lower than your regular hotel restaurant. This is a mistake that costs the average restaurant EUR 200-400 per month - they underestimate the true costs and accept deals that look profitable on paper but aren't. Common margins for this type of collaboration:
- 25-35%: Good margin for premium collaboration
- 35-45%: Excellent margin, often only at larger volumes
- Below 25%: Too low, likely unprofitable
⚠️ Heads up:
Don't forget to factor in indirect benefits: image improvement, new guests, higher room bookings. Sometimes a lower margin on food is acceptable for the overall business impact.
Calculating the break-even point
To know how many guests you need at minimum, calculate your break-even point. This is where all fixed costs (extra staff, marketing, licenses) are covered.
Break-even formula: Fixed costs ÷ (Selling price excl. VAT - Variable costs per person)
💡 Example break-even:
Total fixed costs: €950 (staff + marketing)
Variable costs: €33 (ingredients + license)
Selling price excl. VAT: €77.98
Break-even: €950 ÷ (€77.98 - €33) = 21 guests
Contract terms that affect your margin
Pay close attention to the contract terms with the starred restaurant. These can significantly impact your margin:
- Minimum purchase guarantees: You pay even if guests don't show up
- Exclusivity fees: Extra fee for exclusive use of the name
- Quality checks: Costs for inspection by the starred restaurant
- Ingredient supplier: Mandatory purchasing from specific (expensive) suppliers
Monitoring during the collaboration
Keep an eye on these KPIs during the collaboration:
- Actual ingredient costs vs. budget
- Number of guests vs. break-even point
- Average menu price per guest
- Additional hotel revenue (rooms, bar, breakfast)
How do you calculate the margin on a star collaboration? (step by step)
Gather all cost items
Make a list of ingredients, extra staff, license costs, marketing, and special equipment. Ask the starred restaurant for a detailed cost specification and budget 10-15% buffer for unforeseen costs.
Calculate costs per person
Divide fixed costs (staff, marketing) by the expected number of guests. Add this to the variable costs per person (ingredients, license). This gives you the total cost price per guest.
Determine your minimum selling price
Divide your total cost price by your desired margin (for example, 0.70 for 30% margin). Multiply by 1.09 for the price including 9% VAT. Check if this price is market-appropriate for your target audience.
✨ Pro tip
Set a maximum ingredient cost ceiling of 35% of menu price during your first 90-day trial period. This prevents cost overruns while you learn the starred chef's actual requirements.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
What margin is realistic for a star collaboration?
A margin of 25-35% is realistic for premium collaborations. This is lower than regular hotel catering (35-45%) due to higher ingredient and license costs, but the image improvement often compensates for this.
Do I need to charge VAT on license costs from the starred restaurant?
Yes, license costs are usually subject to 21% VAT regarding use of name/concept. Always check this with your accountant, as it significantly affects your final calculation.
How do I prevent ingredient costs from getting out of hand?
Make firm agreements upfront about maximum ingredient costs per dish. Have the starred restaurant provide a detailed recipe with exact quantities and calculate using their prescribed suppliers.
What if fewer guests come than planned?
Always calculate your break-even point and make agreements about minimum guarantees. Consider a tiered pricing structure: lower price with more guests, or a minimum fee regardless of attendance.
How do I factor indirect benefits into my margin calculation?
Measure additional room bookings, bar sales, and future reservations that you can attribute to the collaboration. This 'halo revenue' can justify a lower direct margin on food.
Should I include staff overtime costs in the collaboration margin?
Absolutely - overtime for your existing kitchen staff during collaboration events is a direct cost. Calculate this as (regular hourly rate × 1.5) × extra hours needed per event and divide by expected guest count.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
Food Standards Agency (FSA) — https://www.food.gov.uk
The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.
Written by
Jeffrey Smit
Founder & CEO of KitchenNmbrs
Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.
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