Here's something most restaurant owners won't admit: they know their monthly payroll, but have no clue what each individual service costs them in wages. Without tracking labor cost per service, you're flying blind on profitability.
What is labor cost per service?
Labor cost per service breaks down your total staff expenses by individual shifts. It's your complete wage bill - kitchen crew, servers, dishwashers - divided by how many lunch and dinner services you run in that timeframe.
💡 Example:
Restaurant with 6 services per week (Tue-Sun lunch + dinner):
- Total payroll costs per week: €4,200
- Number of services: 6
- Labor cost per service: €4,200 ÷ 6 = €700
Which costs do you include?
Don't just count gross wages. You need every staff expense:
- Gross wages: Kitchen, front-of-house, dishwashing
- Employer contributions: Social security (approximately 25% of gross wage)
- Holiday pay: 8% of gross annual salary
- Pension contributions: If applicable
- Health insurance: Employer contribution
⚠️ Important:
Many entrepreneurs only calculate with gross wages. Real costs are 30-35% higher due to employer contributions and allowances.
Labor cost per service formula
Labor cost per service = Total staff costs per period ÷ Number of services in that period
Weekly calculations give you the fastest feedback loop. Monthly numbers hide too much variation:
💡 Weekly calculation:
Bistro open Tue-Sat lunch + dinner, Sun dinner only:
- Total staff costs per week: €3,800
- Services: 11 (5×2 + 1×1)
- Labor cost per service: €3,800 ÷ 11 = €345
Labor cost as a percentage of revenue
Raw dollar amounts don't tell the whole story. The labor cost percentage reveals if you're actually profitable:
Labor cost % = (Labor cost per service ÷ Average revenue per service) × 100
From analyzing actual purchasing data across different restaurant types, here's what healthy percentages look like:
- Casual dining: 28-35% of revenue
- Fine dining: 35-45% of revenue
- Fast casual: 25-30% of revenue
- Café/bistro: 30-38% of revenue
💡 Practical example:
Service with 80 covers, average check €32:
- Service revenue: 80 × €32 = €2,560
- Labor cost per service: €850
- Labor cost %: (€850 ÷ €2,560) × 100 = 33.2%
This falls within the normal range for casual dining.
Different services, different costs
Not all shifts drain your wallet equally. Lunch typically runs leaner than dinner:
- Lunch: Fewer staff, faster turnover
- Dinner: Full brigade, extended hours, chef stays late
- Weekends: Premium pay rates, but higher revenue per seat
⚠️ Important:
Calculate lunch and dinner separately if you have very different staffing levels. An average can be misleading.
Red flags: labor costs spiraling out of control
Watch for these warning signs:
- Labor cost above 40% of revenue (except fine dining)
- Rising costs per service with identical cover counts
- Overstaffing during slow periods
- Constant overtime from poor scheduling
Tools like KitchenNmbrs track these metrics automatically, alerting you before labor costs destroy your margins.
How do you calculate labor cost per service? (step by step)
Gather all staff costs for a week
Add up all payroll costs: gross wages, employer contributions (25% of gross), holiday pay, and other allowances. Don't forget casual staff or outsourced workers.
Count the number of services that week
Count each lunch and each dinner as a separate service. For example, if you're open Tue-Sat lunch+dinner and Sun dinner only, you have 11 services.
Divide total costs by number of services
Use the formula: Total staff costs ÷ Number of services = Labor cost per service. This gives you the exact amount each service costs in staff.
✨ Pro tip
Compare your labor percentage between your busiest Saturday dinner and quietest Tuesday lunch over the past 4 weeks. If the gap exceeds 18 percentage points, you're likely overstaffing slow shifts or missing revenue opportunities during peak times.
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
Should I include the owner/chef-owner in the calculation?
Only if you actually pay yourself a salary. If you're working for free, assign yourself a realistic hourly rate like €20-25 to get accurate cost data.
How often should I calculate labor cost per service?
Weekly calculations catch problems fast. During busy seasons or major staffing changes, track it after every service. Monthly reviews miss too much variation.
What if I have varying opening hours throughout the year?
Calculate separate periods for different schedules. Summer vs winter hours, or peak vs off-season for tourist areas need their own baselines.
Is 35% labor cost always problematic?
Not for fine dining establishments, which typically run 35-45% due to higher service standards and larger teams. Your concept determines acceptable ranges.
How do I reduce labor cost per service without cutting quality?
Focus on smarter scheduling to eliminate overtime, cross-train staff for flexibility, and match staffing levels to actual covers. Sometimes closing the slowest service saves more than you'd expect.
Should I calculate labor costs differently for private events vs regular service?
Absolutely. Private events often require different staffing ratios and preparation time. Track them separately to price future events accurately.
📚 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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