Restaurant Labour Cost: How to Control Your Biggest Variable Expense

Labour is simultaneously the most important and most difficult cost to manage in a restaurant. Unlike food cost — where a bad week shows up immediately in your numbers — labour cost creep is gradual and insidious. By the time most operators notice it, they're already 3–4% over benchmark and wondering why their margin has quietly disappeared.

What should your labour cost percentage be?

The industry benchmark for total labour cost is 28–35% of revenue. This includes kitchen staff, front of house, management, and — critically — the owner's salary at market rate.

Combined with food cost, labour forms your prime cost — the single most important number in your business. Keep prime cost below 65% of revenue. The best operators keep it below 60%.

Why restaurant labour cost is so hard to control

Revenue is variable, labour is semi-fixed

You can't send half your kitchen home because it's a quiet Tuesday. You need a minimum crew to open the doors. This means your labour cost percentage rises dramatically on slow days and drops on busy ones — and your weekly average is determined by how well your roster matches your actual trading patterns.

Overtime accumulates quietly

A kitchen hand who stays 40 minutes late three times a week is costing you 2 hours of overtime per week — across a team of six kitchen staff, that's potentially 12 hours of overtime per week that may not even appear on a simple weekly payroll summary unless you're looking for it.

Rostering is done by feel, not by data

Most restaurant managers roster based on memory and habit rather than actual sales data. The result is chronic overstaffing on predictable slow periods and occasional understaffing on busy ones. A data-driven roster — built from your POS sales history by hour and day — can typically reduce labour cost by 2–3% without any reduction in service quality.

The labour cost ratio: checking it weekly

The single most impactful habit you can develop is calculating your labour-to-sales ratio every week. It takes ten minutes:

1. Pull total wages paid for the week from your payroll system
2. Pull total revenue for the week from your POS
3. Divide wages by revenue and multiply by 100

If it's above your target, investigate before the next week's roster is written — not after the month-end P&L arrives. By then it's too late to act.

Break it down by department

Kitchen labour and front-of-house labour behave differently and need to be tracked separately. A common pattern is a well-controlled kitchen labour cost masked by front-of-house overstaffing, or vice versa. Once you split them out, the problem becomes obvious and the solution follows naturally.

Five practical ways to reduce labour cost

1. Build your roster from sales data

Export a month of hourly sales data from your POS and build a heat map showing your busiest and quietest hours by day of week. Roster to that pattern. Most operations find 2–4 hours per week of labour that can be eliminated from slow periods without any customer impact.

2. Cross-train your team

Staff who can work multiple roles give you scheduling flexibility. A front-of-house team member who can also run the bar allows you to reduce your bar roster on quiet nights. Cross-training costs time upfront but pays for itself within weeks.

3. Review your opening and closing procedures

Opening and closing often have more labour than the actual service period because they're rarely questioned. Time your prep procedures and look for tasks that could be done during service or eliminated entirely. Often 30–45 minutes of opening or closing labour can be reduced without any impact.

4. Track actual vs scheduled hours

Scheduled hours and actual hours are often different — and the gap is almost always in the same direction. Compare scheduled to actual every week and have a direct conversation when they diverge significantly. The accountability alone reduces the gap.

5. Review your management structure

Management labour is often the least scrutinised. An extra manager who was hired during a growth phase that didn't materialise can sit on the books for years. Review whether every management role is generating a return commensurate with its cost.