How the maths works
The headline cost is base pay. Everything below it is the gap between salary and invoice. Each line is a real statutory or operational cost, and each one is sourced from a primary regulator or a transparent industry convention.
Employer National Insurance is 15% of earnings above the £5,000 secondary threshold from 6 April 2026 (HMRC, rates and thresholds 2026/27). Pension auto-enrolment is 3% on qualifying earnings between £6,240 and £50,270 (The Pensions Regulator, frozen at 2025/26 levels). Holiday accrual at 12.07% only applies in hourly mode, because a salaried contract already builds the 5.6 weeks of statutory leave into the salary; adding it twice would double-count.
SSP is £123.25 per week (HMRC), and from 6 April 2026 the three-day waiting period is removed under the Employment Rights Act 2025 (SI 2026/373), so day-1 SSP is the new baseline. Two weeks per year is a common reserve in chef payroll modelling. The apprenticeship levy is 0.5% of payroll, charged on annual pay bills above £3 million with a £15,000 allowance. Recruitment fee is amortised over 18 months because UK hospitality turnover sits at roughly 67% (Kitchen Cut, 2026), which is the realistic average tenure to spread the one-off cost over. The four-week onboarding ramp at 50% productivity reflects how a new chef hits a section: kit familiarity, allergen matrix, supplier list, head chef preferences, and the pace of the brigade.
The agency comparison is the simpler half of the calculator. Hourly rate times hours per week times weeks per year gives the ex-VAT cost. The inc-VAT figure is the same number plus 20% (HMRC standard rate). Direct wages are not VATable; agency invoices are. A VAT-registered restaurant or hotel reclaims it; a care home or non-VAT-registered school typically does not.
Why direct hire and agency are different costs
The two routes look similar on paper and behave very differently in practice. A direct hire is a fixed cost. The salary, the on-costs, and the recruitment fee are all committed before the chef has worked a single shift. If covers fall in February, the cost stays. If a section closes, the cost stays. An agency placement is a variable cost. The hours billed are the hours worked. Service quiet, billing quiet.
The risk profile is different too. With a direct hire the employer carries sickness, no-shows, disciplinary process, and notice periods. With agency cover the agency carries those. If the placed chef does not turn up, a credible agency replaces them. If they underperform, the agency replaces them on the next shift. The trade is hourly cost for risk transfer, and the calculator's break-even line is where that trade balances out for your specific weeks-per-year usage.
Productivity is the third honest difference. A new direct-hire chef takes around four weeks to reach full pace in a new kitchen. An experienced agency chef placed by a credible bench will be section-ready inside a single shift, because they cover unfamiliar kitchens for a living. The calculator captures this as a four-week onboarding ramp at half productivity on the direct-hire side and zero ramp on the agency side.
What this calculator does not price
Some real costs sit outside this scope on purpose. The reputational cost of a bad hire (covers walked out, a one-star review during the first weekend, a head chef leaving over a botched section appointment) is not modelled because we cannot price your reputation. Kit and consumables losses during the first weeks of a new chef figuring out the supplier list are not modelled. Training overhead beyond the four-week ramp (Level 2 Food Safety refresh, allergen training, IDDSI-specific training in care) is not in the calculator either, although the rate research that built the defaults assumes a baseline of those qualifications already in place. If your venue has unusual training overhead, add it to the recruitment-fee number as a workaround, or call us and we will model it with you.
Frequently asked questions
How does this calculator work?
Type in a chef role and region. The calculator pre-fills industry-estimate salary and agency rates from our 2026/27 rate research. It then layers on the statutory on-costs (employer National Insurance at 15% above £5,000, pension at 3% of qualifying earnings, holiday pay where it applies, SSP reserve, optional apprenticeship levy), an amortised recruitment fee, and a four-week onboarding ramp. The same engine builds the agency comparison from your hours per week, weeks per year, and an industry-estimate hourly rate. Override any number and the totals recalculate live.
Where do the rates come from?
Salary defaults are anchored to ASHE chef pay data, Caterer.com 2026 salary survey, Indeed UK, Glassdoor, and ChefsBay's own 2026/27 placement reference data, then reconciled against the National Living Wage £12.71 floor (April 2026) and the London Living Wage £14.80 floor. Agency hourly defaults are an industry estimate aggregated across UK chef agency rate cards. Statutory rates are taken directly from HMRC, The Pensions Regulator, Living Wage Foundation, and legislation.gov.uk. Every figure is open to override.
Does ChefsBay help with permanent recruitment?
No. ChefsBay is a temp and agency cover specialist. The 'direct hire' side of this calculator represents what a perm recruiter (not us) would cost you. We supply temp shifts and agency cover only. If you call us, we will quote you for relief and emergency cover, not a perm placement.
What is included in the true cost of a chef?
Base pay is the headline number, but the real annual cost adds employer National Insurance, employer pension contributions on qualifying earnings, statutory holiday accrual where the chef is paid hourly, an SSP reserve for sick pay, the apprenticeship levy if your annual pay bill is above £3 million, the amortised recruitment fee, and a four-week onboarding ramp at half productivity. The calculator shows each line so you can see how the salary becomes the invoiced cost.
What is WTD holiday accrual at 12.07%?
Working Time Regulations give every UK worker 5.6 weeks of paid holiday a year. For an hourly-paid chef, that works out as 12.07% of every hour worked (5.6 / 46.4 weeks of work). The calculator only adds 12.07% in hourly mode, because a salaried chef's contract already builds paid leave into the salary. Adding it twice would double-count.
When does the apprenticeship levy apply?
The apprenticeship levy is 0.5% of payroll, charged only on annual pay bills above £3 million, with a £15,000 allowance offsetting the first £15,000 of liability. Most independent operators sit well below the threshold and pay nothing. Larger contract caterers, hotel groups, and multi-site restaurant brands typically do pay it. The calculator leaves this off by default and exposes a tick box.
Why is the agency comparison shown ex-VAT and inc-VAT?
Direct wages are not VATable. Agency invoices are. A VAT-registered restaurant or hotel can usually reclaim the 20% VAT, so the ex-VAT figure is the real cost. Care homes, schools, and other operators that are not VAT-registered or that supply VAT-exempt services cannot reclaim, so the inc-VAT figure is what the agency invoice actually costs them. The calculator shows both so the comparison is honest for either case.
How accurate are these defaults?
Accurate enough to budget against and refine on a phone call. The salary defaults are market medians; premium and London-specialist roles routinely sit at the 75th percentile (10-15% higher). Agency rate defaults are industry estimates, not ChefsBay's quoted rates. Real ChefsBay rates flex by shift length, notice period, postcode density, framework volume, and venue type. For a tailored quote, call 0151 440 2249 and we will model your scenario live in five minutes.
This calculator is one of three pieces in our 2026 chef hiring resources. The UK chef hire rate benchmark 2026 carries the full methodology, salary and rate tables across roles and regions, sector overlays for care, education, hotels, contract catering and events, the macro picture (vacancies, wage inflation, the post-22 July 2025 visa restrictions), and 22 cited sources. Temp chef rates UK 2026 walks through what the agency side actually quotes shift by shift.
