Notice Periods: 7 Numbers Behind What It Costs to Let Someone Go (2026 Numbers) | HappyChef
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Notice Periods: 7 Numbers Behind What It Costs to Let Someone Go

The severance line is the number owners brace for. It's rarely the biggest one on the invoice.

In this article
  1. Why this catches owners out
  2. 7 numbers most restaurant owners have never looked up
  3. What would letting this person go actually cost?
  4. How to be ready before you ever need this
  5. The short answer

Every stage of the staff lifecycle has an article on this site: finding people, onboarding them, paying a referral bonus for one, cross-training them, keeping them from leaving. Nothing covers the moment an owner actually lets someone go — the single most legally exposed conversation in the whole relationship, and one that just got more expensive to get wrong.

Belgium's statutory notice-period rules changed for contracts starting from mid-2026: a new cap on how long an employer's notice can run, and a new, much shorter notice period for both sides in an employee's first six months. Neither change has been mentioned on this site — and the underlying maths, the formula that decides how many weeks an owner owes an outgoing cook or waiter, has never been written down here at all.

A notice period isn't optional and it isn't negotiable after the fact: it's set by law, it grows automatically with every year someone stays, and getting it wrong — too short, badly documented, or simply never checked — is exactly the kind of mistake that turns a clean exit into a legal one.

This article is not the trade-secret side of an employee leaving (see the related non-compete piece for that, if the person walking out the door is your head chef with your recipes in their head). It's the ordinary case: someone's employment ends, on notice, and almost nobody has actually worked out what that costs — in the notice pay itself, and in what happens after, when the seat needs filling again.

Seven numbers, in this order: the new cap on what you can owe, the new short window in someone's first months, the asymmetry between what you owe and what they owe you, what replacing them really costs on top of the notice, how often this decision actually comes up, what a mishandled exit risks in legal cost, and the one choice — pay it out or have them work it — that decides how that cost actually lands.

Why this catches owners out

Most independent owners learn their notice-period obligations the first time they need them — mid-conversation, under pressure, with an employee sitting across the desk. That's the worst possible moment to be doing the arithmetic for the first time.

It also doesn't feel like a cost that deserves its own line. Rent, food cost, labour cost — those get planned for. A departure feels like a one-off event, not a recurring cost centre, even though restaurant turnover means most kitchens go through this more than once a year.

The rest of this article adds up what almost nobody in the trade has actually worked out ahead of time: what the statutory scale means in real weeks and euros, what changed in 2026, and what the true cost looks like once replacing the person is added to the notice itself.

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7 numbers most restaurant owners have never looked up

Every figure below comes from a published source — Belgium's own 2026 labour-law reform coverage, hospitality-turnover research, or UK employment-tribunal statistics used as the illustrative reference case for dismissal risk. The notice-period scale itself is presented as an illustrative approximation of the statutory formula, built from confirmed anchor points, not a substitute for checking the exact figure with your payroll provider or the official scale.

1. The new cap on what you can owe

For contracts starting from mid-2026, Belgium introduced something that never existed before: a hard ceiling on employer notice. Once an employee's statutory notice reaches 52 weeks — roughly a full year's wage, whether paid in lieu or worked — it stops climbing, no matter how many more years they stay.

Before this reform, there was no such ceiling: notice kept growing with seniority indefinitely, which meant a restaurant's longest-serving, most senior employee could carry an open-ended, ever-growing exposure. The cap doesn't make a long-serving employee cheap to let go — 52 weeks of wage is still 52 weeks of wage — but it does put a number on the worst case for the first time.

That number is reached at 17 years of seniority under the current scale. For most independent kitchens that's a rare milestone, but it's exactly the kind of number worth knowing before it applies to someone specific, standing in the kitchen doorway on their fifteenth work anniversary.

Four numbers that changed in 2026

Each from a separate, published source — together the reason this scale is worth checking even if you thought you already knew it.

52weeks the new statutory cap on employer notice, reached at 17 years' seniority Belgium's 2026 notice-period reform (contracts from mid-2026)
1week notice on both sides during an employee's first six months New in the same 2026 reform
13weeks the cap on what an employee owes back, resigning, at any seniority Set against the 52-week employer cap above
30–50% of annual salary — the real, all-in cost of replacing someone Industry-standard estimate; Cornell CHR puts a single departure at ~$5,864

Sources: Belgium 2026 notice-period reform coverage (DLA Piper GENIE, Boundless, Liantis, Securex); Cornell University Center for Hospitality Research turnover-cost estimate; UK Ministry of Justice employment-tribunal statistics, used as the illustrative reference case for dismissal-risk cost.

2. The new, much shorter window in someone's first months

The same 2026 reform introduced the opposite end of the scale: for the first six months of an indefinite contract, notice on both sides is now just 1 week.

That matters because most owners still assume the old, longer early-tenure scale applies from day one — and plan hiring decisions around a notice obligation that no longer exists for a genuinely new hire. A trial that isn't working out in month two or three now has a real, short exit window, on both sides.

It cuts both ways, too: a new hire who realises in week three that the job isn't what they expected owes you only a week's notice as well — which is worth knowing before staffing next weekend around someone who could, legally, be gone in seven days.

3. The asymmetry nobody states out loud

Here's the number most owners have never seen written down: what an employee owes back, resigning, is capped at 13 weeks — even at eight or more years of seniority. Compare that to number one: an employer's notice can run to 52 weeks.

In practice the gap shows up earlier than that. A well-known worked example from Belgian payroll guidance: an employee dismissed after roughly four and a half years' seniority is owed 12 weeks by the employer — but the same employee, resigning at that same seniority, owes only about half of that back.

That asymmetry is built into the law on purpose (the relationship is not meant to be symmetric), but almost no owner has ever had it stated as two numbers side by side. It's worth knowing before assuming a departing manager "owes you the same courtesy" you'd owe them.

4. What replacing them actually costs, on top of the notice

The notice-pay number is the one owners brace for. It's rarely the biggest one on the invoice. Once someone is actually gone, the real cost of REPLACING them — recruiting, onboarding, training time, coverage overtime while the seat is empty, management time spent on all of it — is widely estimated at 30 to 50% of that person's annual salary.

Cornell University's Center for Hospitality Research puts a concrete figure on a single front-line restaurant departure at roughly $5,864 once everything is counted — a number that holds up whether the exit was a resignation or a dismissal, because the seat still needs filling either way.

That's the number the calculator below adds to the notice-pay cost, because looking only at the notice period answers the wrong question: what an owner actually needs to know is what the whole transition costs, start to finish.

5. How often this decision actually comes up

Average annual staff turnover across the restaurant industry runs at 75% or higher, with quick-service segments regularly exceeding 100 to 150%. That reframes the whole question: "letting someone go" isn't a rare, dreaded exception most independent kitchens face once every few years — for many, it's closer to routine.

Which is exactly why the maths in this article is worth knowing cold, not looking up under pressure the one time it matters: at this turnover rate, most owners will make this exact decision, in one form or another, several times a year.

It also means the replacement-cost number above isn't a one-off either — it compounds every time a seat turns over, which is the argument for treating retention (see the related article below) as the cheaper alternative wherever it's genuinely possible.

How employer notice grows with seniority

An illustrative approximation of Belgium's statutory scale — built from confirmed anchor points (1 week at 6 months, 12 weeks at 4 years, the 52-week cap at 17 years), not a substitute for the exact official figure.

6 months' seniority
1 weeks
1 year
3 weeks
4 years
12 weeks
8 years
24 weeks
12 years
37 weeks
17+ years (capped)
52 weeks

Illustrative, not a legal calculation. Check the official FOD WASO / RSZ scale, your sector's collective agreement, or your payroll provider for the exact figure for a specific employee.

6. What a mishandled exit risks

Get the process wrong — the notice miscalculated, the paperwork thin, the reason poorly documented — and a dismissal can escalate into a formal, contested claim. Illustrative UK employment-tribunal figures put an employer's legal-defence cost for a straightforward contested case at roughly £10,000 to £25,000, with an average compensation award, where one is made, of around £14,000.

The reassuring number sits right next to it: roughly 90% of disputes that go through early conciliation resolve WITHOUT ever reaching that point. The number that matters isn't "dismissals are dangerous" — it's that following the correct notice period and keeping a clean paper trail is what keeps a case in that 90%, not the 10%.

That's the practical argument for treating the numbers above as more than trivia: a notice period calculated correctly and documented at the time is cheap insurance against the number in this step.

7. The choice that decides how the cost actually lands

Once the notice period is known, there are two ways to handle it: have the person work it out, or pay it out immediately and end the employment today. Working the notice delays the cash cost but keeps someone in the kitchen or dining room who has already mentally left — this site's own research on staff retention and engagement is the reason that trade-off is worth naming rather than ignoring.

Paying it out (in lieu of notice) is the same total wage cost, just concentrated into one payment instead of spread over N weeks of declining output — a cleaner break, at the cost of cash flow today rather than gradually.

There's no universally correct answer — a trusted long-server working out four weeks' notice is very different from a difficult exit where every extra day in the building is a cost of its own. The calculator below computes the total either way; which path to take is a judgement call the numbers can inform but not make for you.

What would letting this person go actually cost?

Enter one person's own numbers: their monthly gross wage, how long they've worked for you, and a replacement-cost percentage (the 30–50%-of-salary benchmark from number four above, adjustable to your own experience).

The tool computes two costs and adds them together: what the statutory notice period itself is worth in wage, and what replacing that person realistically costs on top — the number most owners never add to the first one.

The real cost of letting someone go

Enter your own numbers — the rest does the math.

Statutory notice pay
Wage owed for the notice period itself
Replacement cost
Recruiting, onboarding, training, coverage
Total cost of the transition
Notice pay plus replacement cost combined

Default: 4 years' seniority, 40% replacement cost — the midpoint of the 30–50% industry range. Replace both with your own numbers.

Illustrative, not legal or payroll advice. The notice-period curve is an approximation of Belgium's statutory scale — check the exact figure with your payroll provider, your sector's collective agreement, or the official scale for the country you operate in.

What the tool doesn't do: decide whether to pay the notice out immediately or have it worked. See number seven above — that choice changes when the cost lands, not how much it is in total.

It also doesn't price the trade-secret risk of a departing head chef or a non-compete situation — see the related article below for that specific case, which is a different kind of exposure entirely.

How to be ready before you ever need this

Three moments, in the order they actually happen — long before the conversation, the week you have it, and what to do once the seat is empty.

1. Before you ever need this

  • Know the current statutory scale for your country, and put it in writing in your staff handbook so it's never being looked up for the first time under pressure.
  • Check whether your sector's collective agreement sets different notice periods than the general statutory scale — hospitality often has its own rules layered on top.
  • Keep every employee's start date and any contract changes on file — the whole calculation depends on getting seniority exactly right.

2. The week you decide

  • Use the calculator above with this specific person's wage and seniority before the conversation, not during it.
  • Decide pay-in-lieu versus worked notice deliberately (see number seven above) — it's a real choice, not a formality.
  • Document the reason and the process in writing at the time — see number six above for what that paper trail is actually protecting you against.

3. After they're gone

  • Budget the replacement cost from number four above into your hiring plan from day one, not as a surprise once the new hire's first invoice arrives.
  • Use a structured hiring process for the replacement — the staff handbook, hiring board and onboarding plan already on this site exist for exactly this moment.
  • If this keeps happening with the same role or shift, treat it as a retention question, not a hiring one — see the related article on staff retention below.

The short answer

Belgium's 2026 reform changed both ends of the scale — a new 52-week cap on the worst case, a new 1-week notice in someone's first six months — and neither change is optional to know before the next time this decision comes up.

The number owners brace for (notice pay) is rarely the biggest one on the invoice: add realistic replacement cost, and the total is usually 30–50% higher than the notice period alone suggests.

None of this replaces a lawyer or a payroll provider for a specific case — but knowing the shape of the numbers, ahead of time, is what turns a stressful conversation into a budgeted, correctly handled one.

Frequently asked questions

What changed in Belgium's notice-period rules in 2026?

Two things, for contracts starting from mid-2026: a new 52-week cap on how long an employer's statutory notice can run (reached at 17 years' seniority), where previously there was no ceiling; and a new, much shorter 1-week notice period on both sides during an employee's first six months. See numbers 1 and 2 above.

How is the notice period calculated?

It's based purely on the employee's seniority (length of continuous service) under Belgium's unified statute — age, role and salary level don't affect it directly. This article's calculator uses an illustrative approximation of that scale; for the exact figure for a specific employee, check the official FOD WASO scale or ask your payroll provider.

Does an employee owe the same notice period back if they resign?

No — an employee's resignation notice is capped at 13 weeks regardless of seniority, well below what an employer can owe (up to 52 weeks under the 2026 reform). See number 3 above.

What does it really cost to let an employee go, beyond the notice pay?

Replacing them — recruiting, onboarding, training and covering the gap — is widely estimated at 30 to 50% of their annual salary, on top of whatever the notice period itself costs. Use the calculator above with your own numbers. See number 4.

Should I pay out the notice period or have the employee work it?

Both cost the same total wage — the difference is timing (one payment now, versus spread over the notice weeks) and whether you want someone who has already mentally left still working service. There's no universally correct answer; see number 7 above.

How risky is a dismissal, legally?

Illustrative UK figures put the legal cost of a contested case at roughly £10,000–£25,000, with an average award around £14,000 where compensation is ordered — but roughly 90% of disputes resolve before reaching that point when handled correctly. See number 6 above.

Is this article legal advice?

No. It's a way to understand the shape and scale of the numbers before a specific situation arises. For an actual dismissal, check the exact statutory scale for your country, your sector's collective agreement, and get advice from a payroll provider or employment lawyer.