Picture this: a catering opportunity lands in your inbox, promising €2,500 for a weekend event. But between the extra staff, transport costs, and kitchen disruption, you're wondering if it's actually worth it. Most restaurant owners focus only on the revenue side and miss the full cost picture.
What is net financial impact?
Net impact equals total additional revenue minus every extra expense. This calculation extends far beyond simple catering rates. You must account for:
- Extra staff and overtime
- Kitchen space and equipment
- Increased purchasing and inventory costs
- Transport and logistics
- Opportunity costs (missed restaurant revenue)
The complete cost structure
A catering job appears profitable on paper, but hidden expenses often devour your margins—the kind of thing you only learn after closing your first month at a loss.
💡 Example:
Catering for 100 people, €25 per person:
- Revenue: €2,500
- Food cost (35%): €875
- Extra staff: €400
- Transport: €150
- Opportunity cost: €300 (missed restaurant revenue)
Net profit: €775 (31% margin)
Calculate direct costs
Catering food cost: Typically runs 5-10% higher than restaurant service due to:
- Buffet surplus
- Transport packaging
- No possibility for reordering
Staff costs: Total all additional hours:
- Preparation (often 1 day before)
- Transport and setup
- On-site service
- Breakdown and return
- Overtime surcharges
⚠️ Note:
Always calculate with gross payroll costs including employer contributions (approximately 30% on top of net wages).
Indirect costs and opportunity costs
Kitchen load: Catering prep often monopolizes your entire kitchen space. This disruption can impact regular service quality and timing.
Opportunity costs: What revenue would you generate using that same time and kitchen space for restaurant operations?
💡 Opportunity cost calculation:
Normal Saturday evening restaurant:
- 80 covers × €35 = €2,800 revenue
- Net margin: 15% = €420
If catering costs you a Saturday, add €420 to your catering costs.
ROI calculation per job
Apply this formula to each catering opportunity:
ROI % = ((Revenue - All costs) / All costs) × 100
Target an ROI between 25-40% for catering work. Anything below 20% rarely justifies the additional stress and operational risks.
Long-term impact on your restaurant
Catering can boost your restaurant's brand recognition, but it can also damage reputation if quality standards slip. Consider these intangible factors:
- New customers for the restaurant
- Reputation risk from poor catering
- Team fatigue after large jobs
- Inventory imbalance from large purchases
⚠️ Note:
Catering at a loss 'for the publicity' rarely works. Focus on profitable jobs that fit your concept.
How do you calculate the net impact? (step by step)
Gather all direct costs
Add up: food cost, extra staff costs, transport, materials and any rental of additional equipment. Don't forget employer contributions (30% on top of wages).
Calculate opportunity costs
What would you have earned in the restaurant on the same day/time? Add the net profit from that missed revenue to your catering costs.
Determine your net profit and ROI
Subtract all costs from catering revenue. Divide the result by total costs and multiply by 100 for your ROI percentage.
✨ Pro tip
Track your actual costs versus estimates for the first 8-10 catering jobs you complete. This data becomes your pricing foundation and helps you spot which job types consistently underperform.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
Was this article helpful?
Frequently asked questions
What ROI is healthy for catering?
Target an ROI between 25-40% for catering work. Below 20% rarely justifies the extra operational risks and stress involved.
How do I calculate staff costs for catering?
Add up all extra hours including prep, transport, service, and breakdown. Calculate using gross payroll costs plus 30% for employer contributions.
Should I always include opportunity costs?
Absolutely, especially if catering disrupts your regular service. This gives you the true picture of what catering actually delivers versus restaurant operations.
Why is my catering margin lower than restaurant?
Catering typically has higher food costs due to buffet surplus, plus additional staff and transport expenses that restaurant service doesn't require.
How do I handle seasonal catering demand spikes?
Track your kitchen capacity limits during peak seasons and price accordingly. Don't accept jobs that will compromise your core restaurant quality during busy periods.
What's the minimum catering order size that makes financial sense?
Most restaurants need at least 30-40 covers to cover fixed costs like transport and setup time. Smaller orders rarely generate acceptable margins unless priced significantly higher.
📚 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.
Calculate your break-even point in seconds
Food cost is just one part of the story. KitchenNmbrs also helps you structure labor costs and other expenses for a complete break-even overview. Start free.
Start free trial →