Labour Cost in Industry
Last updated:
2/4/2026
In brief: Labour cost is the largest expense in industry and services. Shift premiums, overtime, agency workers, absenteeism: every component directly impacts profitability. Yet most industrial companies do not know their real labour cost per shift, per line or per product. This guide covers the structure of industrial labour cost, optimisation levers, productivity KPIs and tools to manage costs in real time. Shyfter calculates the forecast cost of every schedule before publication.
The structure of labour cost in industry
Components of labour cost
The labour cost of an industrial worker in Belgium is not simply the gross wage. It includes: the base gross wage (set by the joint committee, pay scale and seniority); employer NSSO contributions (approx. 25% of gross after structural reductions); shift premiums (morning, afternoon, night); overtime supplements (50% on weekdays, 100% on Sundays and public holidays); night and weekend premiums (per joint committee); holiday pay and end-of-year bonus; meal vouchers and eco-vouchers; insurance (hospitalisation, supplementary pension); work clothing and PPE.
In practice, the total employer cost is 1.5 to 1.8 times the gross wage. Shift premiums and overtime can add a further 10–25%.
The cost of shift work
Working a three-shift system generates structural additional costs vs. day work: afternoon shift premium (5–15% of hourly wage); night premium (15–30%); weekend supplement (50–100%); enhanced medical monitoring; extra compensatory rest days. A night shift costs 20–35% more than a day shift at equal headcount.
Knowing your real labour cost
Cost per hour worked
Divide total labour cost (all charges) by hours actually worked. This varies by shift, weekday and worker profile. Example for a JC 111 (metal) operator: day shift €35–40/hr; afternoon shift €38–44/hr; night shift €42–50/hr; Sunday shift €55–65/hr; night overtime €60–75/hr.
Cost per unit produced
Cross time-tracking data (hours worked) with production data (units produced). Variances reveal scheduling problems, productivity issues or quality defects.
Optimisation levers
Lever 1: reduce avoidable overtime
Overtime costs 50–100% more than regular hours. Causes: chronic understaffing, unplanned absences, unrealistic schedules, poor anticipation of production peaks. Real-time time-tracking identifies overtime as it happens, not at month end.
Lever 2: optimise the agency/permanent ratio
Agency workers cost 1.8–2.5× the gross wage. Analyse agency hours over 12 months: positions filled continuously for more than 6 months should be converted to permanent contracts.
Lever 3: reduce absenteeism
Belgian industrial absenteeism runs at 7–9%. A fair, predictable schedule reduces motivational absenteeism.
Lever 4: forecast cost scheduling
Shyfter calculates the forecast labour cost of each schedule before publication — shift premiums, overtime and all. If next week's schedule exceeds budget, you know before, not after.
Productivity KPIs
- Labour cost per unit produced
- Man-hours per unit
- Workforce utilisation rate: productive hours / hours clocked
- Overtime ratio: target below 5%
- Agency ratio: target vs. workload volatility
- Absenteeism by shift and team
- Replacement cost (agency + overtime to cover absences)
Labour cost by joint committee
JC 111 (metal): high pay scales, standardised shift premiums. JC 112 (garages): intermediate scales, specific working-time arrangements. JC 118 (food): variable scales, seasonal premiums possible. JC 140 (transport): driving time components, travel allowances. JC 317 (security): indexed scales, significant night/weekend premiums.
Belgium's high labour cost
Belgium has one of Europe's highest labour costs. The partial exemption from professional withholding tax for shift and night work is a significant fiscal benefit — verify with your social secretariat that all applicable reductions are active.
FAQ
How do you calculate the real cost of an overtime hour?
Take the total employer hourly cost. Add the legal supplement (50% weekday, 100% Sunday/holiday) and associated contributions. A weekday overtime hour costs approx. 1.6–1.8× the regular hour. A Sunday night overtime can reach 2.5–3×. Shyfter calculates these automatically by joint committee.
What is the ideal agency/permanent ratio?
Stable production: target below 5–10% agency. Major seasonal peaks: up to 25–35% at peak. Warning signal: same agency positions filled continuously for more than 6 months — likely more cost-effective to recruit permanently.
How do you reduce overtime without impacting production?
Analyse causes, build a pool of qualified replacements, anticipate peaks 2–3 weeks ahead. Real-time time-tracking gives the visibility to act before the overrun.
