Most catering businesses don't lose money on bad food. They lose money on bad pricing — undercharging for labour, forgetting fixed costs, applying the wrong markup, or saying yes to clients who were always going to push them below break-even.
This is the working math caterers use to price an event profitably. It covers food cost percentage, labour ratios, the hidden line items most quotes miss, the markup-vs-margin confusion that costs you real money, and a worked example. There's also a short section on when to walk away from a quote rather than chase it down.
The per-guest mindset
Catering pricing is almost always quoted per guest, even when the underlying costs aren't strictly per-guest. The reason is conversational simplicity: the client thinks in headcount ("we have 90 guests"), so the price needs to land in that unit ("$95 per guest").
But you don't calculate per guest. You calculate total cost, then divide by guest count, then add markup. Conflating the two — quoting per-guest before doing the actual math — is the #1 way caterers undercharge.
The food cost percentage rule
The industry-standard target for food cost is 28–35% of the menu price. That means if you're charging the client $30 per guest for food, the raw ingredients should cost you $8.40–$10.50.
Why? Because food is only one of your costs. The other 65–72% has to cover labour, overhead, breakage, waste, and your margin. Caterers who price food at 50% cost (charging $30 against $15 ingredients) feel like they're being competitive — but they're working for free.
Reverse-engineering the rule: if your raw ingredients for a buffet menu run $14 per guest, your menu price for that item should be $40–$50 ($14 ÷ 0.30 to 0.35).
Quick formula: Menu price per guest = food cost per guest ÷ target food cost % (e.g. 0.30 or 0.32).
Example: $14 ÷ 0.30 = $46.67. Round to $47.
Labour: the cost most under-charged
Labour is the second-largest cost in catering and the most consistently under-charged. The math for labour:
- Count hours by role. Captain, servers, bartenders, kitchen prep, transport, setup, strike. Don't forget travel time and pre-event prep.
- Multiply by loaded hourly cost. Not the take-home wage — the full cost including payroll taxes, benefits, and a small buffer for overtime. A $20/hour server costs you closer to $26–28/hour fully loaded.
- Add a labour markup of 2–3×. Just like food, labour gets billed at a markup. A 90-guest event with 6 servers × 6 hours × $26 loaded = $936 raw labour cost. Bill it at $2,000–$2,500.
The standard server ratio rules:
- Plated: 1 server per 12–16 guests
- Buffet: 1 server per 25–35 guests
- Cocktail / canapés: 1 server per 40 guests
- Bartenders: 1 per 50–75 guests, depending on bar style
If you under-staff to keep labour down, the experience suffers and the next booking dries up. If you over-staff to look generous, your margin disappears. The ratio rules are there because they work.
The line items that move quotes from break-even to profitable
These are the costs you bake into the per-guest price (or itemise separately, depending on your pricing model). Either way, every one of them has to be accounted for or you're working at a loss:
- Rentals — tables, chairs, linens, glassware, china, flatware, serving pieces. Often marked up 1.5–2× from the rental house's price.
- Transportation — vehicle, fuel, driver time, return trip. For off-premise events more than 30 minutes out, this is real money.
- Disposables and packaging — chafing dish fuel, take-home containers, garbage bags, plastic wrap. ~$1–3 per guest.
- Insurance and licensing — your business carries liability and liquor liability; amortize that across your annual event volume.
- Kitchen overhead — rent, utilities, equipment depreciation. If you have a commissary, this gets spread across all events.
- Sales and admin time — the hours spent quoting, emailing, contracting, invoicing. Real labour, even if it isn't on-site.
- Marketing — what you spend to generate the lead in the first place. A quote that doesn't cover marketing cost means you're growing your business at a loss.
- Profit margin — yes, this is a separate line in your math even if it's invisible in the client's quote. Target 15–25% net.
Markup vs. margin: the math caterers get wrong
This is the most expensive math mistake in the industry. Markup and margin are not the same number.
- Markup = profit ÷ cost. If a dish costs you $10 and you sell it for $30, your markup is 200% ($20 profit ÷ $10 cost).
- Margin = profit ÷ selling price. Same dish: margin is 67% ($20 profit ÷ $30 selling price).
Caterers who say "I'm running 30% markup" usually mean they're running 30% margin — which is healthy. Caterers who actually apply 30% markup ($10 cost × 1.30 = $13 sell price) are running a 23% margin on food, and likely losing money once labour and overhead are factored in.
The quick check: Markup and margin only equal each other at 0%. After that, they diverge significantly. A 50% markup is a 33% margin. A 100% markup is a 50% margin. A 200% markup is a 67% margin.
Use whichever number you're comfortable with — but be sure which one you're using.
A worked example: 90-guest buffet wedding
Let's walk through the full math on a 90-guest off-premise buffet wedding, $14/guest food cost, 30% target food cost.
Calculation — internal numbers (not what the client sees)
| Raw food cost (90 × $14) | $1,260 |
| Food at 30% cost ($14 ÷ 0.30 × 90) | $4,200 |
| Bar — premium, $24/guest × 90 | $2,160 |
| Labour — 6 servers × 6h × $26 loaded | $936 |
| Labour billed (~2.5× markup) | $2,340 |
| Rentals — linens, glassware, chafing (with markup) | $680 |
| Transport + setup/strike | $420 |
| Disposables & packaging (90 × $2) | $180 |
| Service charge (18% of F&B) | $1,143 |
| Subtotal billed to client | $11,123 |
| Tax (14.975%, varies by jurisdiction) | $1,666 |
| Total to client | $12,789 |
Per-guest, this is roughly $142 all-in, or about $124 pre-tax. The food/bar component alone is ~$71 per guest, which is in the realistic range for a buffet wedding.
Now the profitability check:
What you actually keep
| Revenue (pre-tax) | $11,123 |
| Less: raw food | ($1,260) |
| Less: raw bar (50% cost) | ($1,080) |
| Less: labour at loaded cost | ($936) |
| Less: rentals at our cost | ($380) |
| Less: transport + disposables + admin | ($550) |
| Less: overhead allocation (~10%) | ($1,112) |
| Net profit | $5,805 |
That's a 52% gross margin, ~22% net margin after overhead. That's a healthy event. Reduce the food markup to 40% instead of 30%, and the net margin drops to ~12% — still profitable but with no safety net for the inevitable surprise.
When to walk away from a low-ball client
Some prospects will negotiate hard, then keep negotiating during the event, then write a Yelp review when the experience doesn't match what they wanted to pay. Learning to identify them early is part of pricing well.
Flags to watch for:
- "Can you match the quote from [competitor]?" without sending you the competitor's quote — usually doesn't exist.
- "What's the cheapest you can do?" as the opening question — they don't care about your work.
- Pushing for a price drop after you've already itemised every line — they want you to absorb labour cost.
- Asking you to remove the service charge or build it into the per-guest — they'll then under-tip too.
- "We're a non-profit / wedding / first event" — these can be real, but if every other signal is also low-budget, the discount won't come back as referrals.
A polite walk-away:
"Thanks for the consideration. Based on what you're looking for, our pricing comes in at $X. I understand if that's above your budget — happy to recommend a few other caterers in the area who work at different price points. Either way, all the best with your event."
Sending them elsewhere is better than spending six weeks negotiating to an unprofitable yes.
LightCater handles the pricing math for you. Pull from your menu library at its costed price, set the markup, apply taxes and service charge, send the polished proposal. Accepted proposals become contracts and invoices in one click — same numbers, no transcription errors. See how it works.
The five-minute version
Target 28–35% food cost. Charge labour at 2–3× loaded cost, sized by the right server ratio. Don't forget rentals, transport, disposables, admin time, and overhead allocation. Apply markup (not margin) consistently. Add service charge and tax explicitly. Walk away from clients who push you below your sustainable floor.
Do that on every quote and the difference between break-even years and good ones is — over 50 events — somewhere north of $80,000.