Every catering job hits you with unavoidable expenses before you serve the first plate. These costs stay identical whether you're feeding 40 people or 140. Understanding this math determines if your smaller events actually make money.
What are fixed costs in catering?
Fixed costs represent every expense you face before serving anyone. Double your guest list, and these costs don't budge a penny.
💡 Example fixed costs wedding:
- Transport there/back: €120
- Chef + 2 servers (8 hours): €480
- Equipment (warming pans, tableware): €80
- Setup/breakdown time: €160
Total fixed costs: €840
Variable costs work differently
These expenses grow directly with headcount:
- Ingredients (€12 per person)
- Packaging/tableware (€2 per person)
- Extra staff for large groups (from 100+ guests)
Calculate fixed costs per person
Split your total fixed costs across guest count to see what each person needs to contribute toward these expenses.
Formula:
Fixed costs per person = Total fixed costs ÷ Number of guests
💡 Example calculation:
Fixed costs: €840
Scenario 1: 60 guests → €840 ÷ 60 = €14.00 per person
Scenario 2: 120 guests → €840 ÷ 120 = €7.00 per person
Same event, but doubling guests cuts your fixed cost burden in half.
Calculate minimum break-even point
You need to cover fixed costs, variable costs, and still walk away with profit.
Formula minimum selling price:
(Fixed costs ÷ Number of guests) + Variable costs per person + Desired margin
💡 Break-even calculation:
80 guests, desired margin 25%:
- Fixed costs per person: €840 ÷ 80 = €10.50
- Variable costs per person: €14.00
- Total cost price: €24.50
- Minimum selling price: €24.50 ÷ 0.75 = €32.67
You need at least €32.67 per person for a 25% margin.
⚠️ Note:
Smaller events (under 50 guests) often carry brutal fixed costs per person. Always check if your minimum price stays competitive, or set a guest minimum.
Fixed costs categories
Track these elements for every single event:
- Transport: there/back, fuel, possibly extra trips
- Base staff: minimum staffing regardless of group size
- Equipment/materials: warming pans, tables, tableware
- Setup/breakdown: time for installation and cleanup
- Preparation: time for shopping, prep, planning
Track it in practice
Most caterers build standard fixed cost templates for different event types. A wedding carries completely different fixed expenses than a corporate lunch or birthday party.
This is a pattern we see repeatedly in restaurant financials - operators who track these costs properly can spot which event sizes actually generate profit and which ones drain their bank account.
How do you calculate fixed costs for catering? (step by step)
List all fixed costs
Note all costs you have regardless of the number of guests: transport, minimum staff, equipment, setup/breakdown time. Add these together for your total fixed costs.
Divide by number of guests
Use the formula: Fixed costs per person = Total fixed costs ÷ Number of guests. This gives you the fixed costs each guest needs to contribute.
Calculate minimum selling price
Add fixed costs per person to variable costs per person. Divide this by (1 - desired margin) to get your minimum selling price.
✨ Pro tip
Build separate fixed cost templates for each event type - weddings average €840 in fixed costs while corporate lunches run €320. Update these templates every 90 days to catch wage increases and fuel price swings.
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 if the number of guests changes at the last minute?
Your fixed costs stay put, but get spread among more or fewer people. Fewer guests bump up your fixed cost per person; more guests bring it down. Always lock in a confirmed minimum number to protect yourself.
Should I include VAT in my fixed costs calculation?
Calculate your cost price excluding VAT since you pass VAT directly to customers. For catering, 9% VAT applies to food and non-alcoholic beverages.
How often should I recalculate my fixed costs?
Review fixed costs every quarter since fuel prices, wages, and material costs shift regularly. Last year's pricing might sink you today.
What if my fixed costs per person become too high for small events?
Set a minimum guest count (like 40 people) or establish a minimum total price. Otherwise small events kill profits due to sky-high fixed costs per person.
Are preparation costs also part of fixed costs?
Absolutely - time spent on menu planning, shopping, and prep work counts as fixed costs. You invest this time whether serving 50 or 100 guests, so build it into your hourly rate.
How do I handle equipment rental costs that vary by guest count?
Split equipment into truly fixed items (basic warming equipment) versus variable rentals (extra tables for larger groups). Only count base equipment needs as fixed costs. Variable equipment gets added to your per-person costs instead.
📚 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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