How to Calculate Redundancy Costs in the UK: A Step-by-Step Guide for Employers
How to Calculate Redundancy Costs in the UK: A Step-by-Step Guide for Employers
Planning a redundancy process? One of the first questions you’ll face is: “How much will this cost?”
Whether you’re making a single role redundant or restructuring a whole department, getting your redundancy cost calculations right is vital — for legal compliance and financial planning. This guide walks you through what to include, where errors commonly occur, and how to save time using our UK redundancy cost calculator.
🔍 What Is a Redundancy Cost?
A redundancy cost is the total amount an employer must pay when ending an employee’s role due to redundancy. In the UK, this can include:
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Statutory redundancy pay
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Notice period pay (worked or paid in lieu)
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Accrued but unused holiday pay
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Employer National Insurance and pension contributions
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Any enhanced redundancy agreed in contract or policy
You’ll also need to account for selection criteria documentation — and we’ll show you how our Redundancy Selection Matrix helps with that too.
🧮 Main Components of Redundancy Costs
Here’s what typically makes up the redundancy payout for each affected employee:
1. Statutory Redundancy Pay
Employees with 2+ years’ service are entitled to statutory redundancy pay, calculated based on:
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Age
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Complete years of service
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Weekly gross wage (capped at £700 from 6 April 2025*)
Use this formula:
0.5 week’s pay for each full year under age 22
1 week’s pay for each full year aged 22 to 40
1.5 week’s pay for each full year aged 41 or over
*Subject to the statutory cap — updated yearly.
2. Notice Pay
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Employees are entitled to at least one week per year of service, up to 12 weeks.
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You may require them to work the notice or pay in lieu (PILON).
3. Holiday Pay
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You must pay for unused statutory holiday entitlement up to the termination date.
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Check for any enhanced leave under the contract.
4. Employer NI and Pension Contributions
If notice is paid in lieu or employees are on garden leave, you may still be liable for:
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Employer National Insurance
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Employer pension contributions
5. Enhanced Redundancy Pay
Some employers offer a better-than-statutory deal in contracts or policies. This must be honoured.
🧠 Common Mistakes Employers Make
Avoid tribunal risk by watching out for these common errors:
| ❌ Mistake | ⚠️ Risk |
|---|---|
| Forgetting to pay notice period in full | Unlawful deduction or breach of contract |
| Using incorrect weekly pay (above cap or excluding bonuses) | Overpayment or underpayment |
| Ignoring accrued holiday pay | Breach of Working Time Regulations |
| Miscalculating continuous service (e.g. TUPE transfers) | Tribunal challenge |
| Lacking documented selection criteria | Claims of unfair dismissal |
✅ Save Time with Our Redundancy Calculator Tool
Manually working through these calculations — especially for multiple staff — is time-consuming and prone to error.
Our Redundancy Calculator for Employers helps you:
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✅ Calculate redundancy pay for multiple staff in parallel
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✅ Include notice and holiday pay in one place
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✅ Apply statutory caps and 2025 thresholds automatically
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✅ Export clean, auditable reports
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✅ Use our optional Redundancy Selection Matrix to document your decision-making fairly
⚙️ The Selection Matrix: Avoid Discrimination & Legal Risk
Our downloadable Redundancy Selection Matrix helps you score employees objectively based on fair, transparent criteria (e.g. attendance, skills, conduct).
This reduces legal risk and helps defend your process if challenged.
🧾 Redundancy Cost Example
Here’s a quick worked example for an employee aged 45, with 12 years’ service and a weekly pay of £750:
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Statutory redundancy pay = 1.5 weeks x 12 years = 18 weeks
– capped at £700/week = £12,600 -
Notice pay = 12 weeks x £700 = £8,400
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Holiday pay = 5 days unused holiday = ~£700
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Total cost = ~£21,700 plus employer contributions
With 5 employees? That’s £100,000+ — it pays to get it right.
🎯 Final Thoughts: Let the Calculator Do the Work
Redundancies are stressful enough. Don’t waste time with spreadsheets or risk underpaying staff.
Use our simple tool to calculate redundancy costs for multiple staff, backed by current UK law. Our system is designed by HR professionals for busy employers — especially SMEs.
👉 Use the Redundancy Calculator Now
🔒 Instant access – No signup required
📄 Optional download – Redundancy Selection Matrix included
