Staff can be one of the most important parts of a business sale. Buyers and sellers should plan TUPE, employee information, communication, payroll, key-person risk, confidentiality and handover before completion.
Quick Answer: What happens to staff when a business is bought or sold?
When a business changes hands, employees may be legally protected under TUPE — the Transfer of Undertakings (Protection of Employment) Regulations 2006. GOV.UK confirms that where TUPE applies, the new employer takes on employees' existing employment contracts, including their terms and conditions, holiday entitlement, continuous service and certain pre-existing liabilities.
Whether TUPE applies depends on the structure of the transaction. A share sale, an asset sale, a service provider change and a partial business transfer can each produce different legal outcomes. Getting this wrong can be expensive.
Buyers and sellers should not guess about the employment position. Both need employment advice early in the process. Sellers should prepare employee information carefully and in a controlled way. Buyers should check everything from contracts and pay rates to holiday accrual, pension compliance and potential disputes. And both sides need a clear, agreed plan for when and how staff will be told about the change of ownership.
Contents
Why staff matter in a business sale
In many owner-managed businesses, the team is one of the most significant components of the business's value. A buyer who pays a premium for goodwill is partly paying for the skilled, experienced and customer-connected team that makes the business work. If that team leaves before or immediately after completion, the value can disappear quickly.
From a buyer's perspective, staff matter because they represent:
The skills and technical expertise needed to deliver the product or service
The customer relationships that drive repeat trade and referrals
The operational knowledge that keeps the business running day-to-day
Management continuity that reduces the risk of disruption post-completion
Compliance and regulatory knowledge that may not be easily replaceable
The local reputation and service quality that the goodwill reflects
But staff also represent risk, and buyers who do not look carefully at the employment position can find themselves with unexpected problems after completion. Staff issues that commonly cause difficulty in business sales include employment contracts that are missing, incomplete or inconsistent with what staff are actually being paid; payroll records that are poorly maintained or do not match the contracted terms; key employees who may be at risk of leaving because they have not been retained or properly communicated with; accrued holiday liabilities that are larger than expected; pension records that are incomplete or non-compliant; disputes or grievances that have not been resolved; and, in some cases, staff arrangements that are not in writing at all — particularly in smaller or family-run businesses where practices have developed informally over time.
A business can lose significant value quickly if the wrong staff leave. Managing the employment aspects of a sale well is not a formality — it is central to protecting the investment for both sides.
What is TUPE?
TUPE stands for the Transfer of Undertakings (Protection of Employment) Regulations 2006. It is a piece of employment legislation that protects employees when the business or undertaking they work for transfers to a new employer.
Acas describes TUPE as protecting employees' rights when they transfer to a new employer, whether through a business transfer or a service provider change. GOV.UK confirms that when a business changes owner, employees may be protected under TUPE, meaning the new employer takes over their existing contracts of employment.
In practical terms, where TUPE applies, the new employer — the buyer — takes on the transferring employees' existing terms and conditions of employment as they stood at the point of transfer. That means salary, working hours, holiday entitlement, contractual benefits, seniority and continuous employment all carry over. In general, the buyer cannot simply impose new terms on transferred employees as a consequence of the transfer itself, and doing so can create legal liability.
The key things TUPE may transfer to the new employer include:
The existing employment contracts of transferring employees
All terms and conditions, including those that may be more favourable than what the buyer would have offered
Accrued holiday entitlement not yet taken
Continuous employment — the employees' years of service continue with the new employer
Rights under applicable collective agreements
Certain pre-existing liabilities, including some claims relating to earlier employment
TUPE is a technically complex area of law. Whether it applies in any given transaction, which employees are in scope, what information must be provided, whether any consultation is required, and what liabilities transfer are all questions that should be answered by a qualified employment lawyer before the deal progresses. Attempting to guess at the TUPE position, or to ignore it in the hope that it does not apply, regularly results in claims against buyers after completion.
Asset sale vs share sale staff issues
The structure of the transaction — whether it is an asset purchase or a share purchase — significantly affects how employees and TUPE are treated.
Asset sale
In an asset sale, the buyer purchases specific assets from the business and the employees do not automatically stay with the selling company. Instead, if the transaction constitutes a relevant transfer under TUPE, the employees assigned to the business being transferred will transfer automatically to the buyer on their existing terms.
The key questions that need to be answered in an asset sale include: which employees are assigned to the part of the business being transferred and should therefore transfer under TUPE; what employee information must the seller provide to the buyer, and by when; are there any consultation obligations that must be met before the transfer; which pre-existing liabilities — such as accrued holiday, outstanding pay, or claims — transfer with the employees and which remain with the seller; what restrictions does TUPE place on the buyer's ability to change terms and conditions after completion; what happens to employees who are not within the scope of the transfer?
Each of these questions needs to be answered specifically for the transaction at hand, not assumed. An employment lawyer should be involved from the heads of terms stage.
Share sale
In a share sale, the company remains the employer throughout. The shares change hands, but the employment contracts remain with the same company — the employees do not technically transfer to a new employer. As a result, TUPE may not apply in the same way.
However, this does not mean employment issues are irrelevant in a share sale. Buyers acquiring a company through a share purchase take on that company's entire employment history, including all existing contracts, all accrued liabilities, any pending or threatened claims, and any obligations arising from the company's conduct as an employer. Buyers should therefore still check contracts, pay rates, holiday and pension records, any disputes or tribunal claims, bonus and commission arrangements, and change-of-control clauses in key employees' contracts that might be triggered by the acquisition.
Staff morale and key-person risk also matter in a share sale. Employees may be aware of the change of ownership, or may learn of it around completion, and how that is managed can have a real impact on whether key people stay.
What employee information should sellers prepare?
Sellers should prepare a comprehensive package of staff information for disclosure during due diligence. This information is commercially sensitive and should be shared in a controlled way — typically starting with anonymised summaries and moving to named individual information only at the appropriate stage of the process, within a structured data room.
The information sellers should prepare includes:
A staff list with names, job titles and departments
Roles and responsibilities for each employee
Employment start dates and any break in continuous service
Employment contracts for each employee
Pay rates, including any recent pay reviews
Contracted and actual working hours
Bonus and commission schemes, with details of how they are calculated and paid
Holiday entitlement and current accrued holiday not yet taken
Pension scheme details and auto-enrolment records
Payroll records, typically for the past twelve months
Sickness and absence records
Disciplinary records, including any current or recent disciplinary proceedings
Grievance records, including any current or open grievances
Training records and professional qualifications
Evidence of right-to-work checks for all employees
Restrictive covenant provisions in employment contracts
Contractor and freelancer agreements for any non-employees working in the business
Details of any pending employment claims or tribunal proceedings
The company's staff handbook and key employment policies
Staff information is personal data. The ICO guidance on mergers and acquisitions makes clear that sharing personal data during due diligence requires careful handling, and that the basis for sharing should be considered and documented. Use anonymised data initially, provide named individual data only within a controlled and appropriately secured process, and ensure the buyer understands their obligations in relation to the data they receive.
What should buyers check?
Buyers should approach the employment position with the same rigour they bring to the financial and legal due diligence. Employment issues that are missed before completion become the buyer's problems after it.
Key areas to check include:
How many staff are genuinely essential to the business, and which could be replaced without significant disruption
Whether all employees have written employment contracts, and whether those contracts reflect the actual arrangements
Whether pay rates are at, above or below market rates — and whether the business can afford the wage bill going forward
Whether there is any accrued unpaid holiday, and how significant the liability is
Whether pension records are in order and auto-enrolment has been properly managed
Whether any bonuses or commission are owed that may not have been disclosed
Whether there are any current or recent disciplinary proceedings, grievances or employment claims
Whether staff are likely to stay after the change of ownership
Whether key knowledge is documented or exists only in the heads of specific individuals
Whether any members of the owner's family work in the business on informal or non-commercial terms
Whether any informal working arrangements — hours, pay, benefits — exist that are not reflected in the contracts
Whether TUPE applies and, if so, what obligations it creates for the buyer
Key-person risk
One of the most important assessments a buyer needs to make is the degree of key-person risk in the business. The key questions to ask are: who holds the most important customer relationships, and what happens to those relationships if that person leaves? Who is responsible for running operations on a day-to-day basis? Who holds the institutional knowledge about the systems, processes, suppliers or regulatory requirements? Who is the technical expert whose skills underpin the service or product? Who handles compliance or regulatory matters that cannot easily be delegated?
If the answer to several of these questions is "the seller", or if one or two other individuals are identified as critical with no obvious successor, that is a meaningful risk. A buyer in this position may reasonably negotiate a lower price, require a retention arrangement, ask for specific warranties about key employees, or insist on a longer and more structured handover period as a condition of the deal.
When should staff be told?
Timing the communication to staff about a business sale is one of the most sensitive decisions in the entire process. Both extremes — telling people too early and telling people too late — carry real risk.
Telling staff too early creates problems: it can cause anxiety and uncertainty before the deal is certain; it may lead to resignations from staff who assume the worst; it can generate rumours that are harder to manage than a clear announcement; and it may reach customers, suppliers or competitors before the seller wants it to.
Telling staff too late creates different problems: employees may feel deceived when they find out the sale was in progress for months without them being told; there may be legal obligations — particularly under TUPE — that require information and possibly consultation to happen before completion; and key staff who were not approached or retained may make their own decisions in the meantime.
The right timing depends on a number of factors: whether TUPE applies and what obligations that creates; the deal structure and how it affects the employment position; the size and complexity of the team; how tight confidentiality is within the business; whether any key staff need to be retained through a specific conversation or incentive before completion; whether the deal is sufficiently certain to justify the announcement; and the advice of the employment lawyer advising on the transaction.
Communication plan
Both buyer and seller should agree a communication plan before completion. This plan should address: who tells staff — the seller, the buyer, or both together; when the announcement is made — in advance of completion, on the day, or shortly after; what message is delivered and how it is framed; whether the buyer will be present for the announcement or will meet the team separately; how staff who ask specific questions about their jobs, contracts, pay and continuity will be answered; who handles follow-up questions; how key individuals will be spoken to separately and what, if anything, they will be offered; and what happens if staff react badly or express concerns that need to be addressed.
Do not leave staff communication to chance. Improvising an announcement on completion day is not a plan.
How to reduce key-person risk
Sellers can take meaningful steps before a business sale to reduce the risk that key staff issues become a significant problem during or after the transaction.
Actions sellers can take in advance include putting written employment contracts in place for all staff, if any are currently working without them; documenting operational processes and procedures so that key tasks are not dependent on any single individual's memory or personal knowledge; training other team members to handle responsibilities that currently sit with the owner or one key employee; formally recognising and recording the roles and responsibilities of the existing team; reviewing and tidying up pay, holiday and pension records; resolving any outstanding disputes or grievances before the business goes on the market; improving general staff stability and reducing turnover; preparing structured handover notes for key roles; identifying at an early stage which staff are most critical to the business and thinking about how they will be retained through the transition; and planning the staff communication carefully rather than leaving it to the last moment.
Buyers can take their own steps to reduce key-person risk in the period leading up to and following completion. These include meeting key staff members at the appropriate stage — with the seller's agreement and within a carefully controlled confidentiality framework — to build rapport before the change happens; providing reassurance about job security, continuity of terms and the buyer's intentions for the business; keeping communication clear, honest and consistent; agreeing handover support with the seller so that the transition period is structured; considering retention incentives for employees who are critical to the business's ongoing performance; avoiding making sudden or significant changes to the team immediately after completion; and taking time before completion to understand the culture of the business and what matters to the team before deciding what to change and when.
Payroll, pensions and liabilities
Employee-related financial liabilities can be more significant than they appear in the headline pay figures. A thorough review of payroll, pensions and related obligations should form part of any business sale due diligence.
Key areas to cover include:
Payroll records for the past twelve months, including all salary payments, bonuses and irregular payments
PAYE compliance — whether income tax and National Insurance have been correctly deducted and paid over to HMRC
Pension auto-enrolment records — whether the business has enrolled eligible employees correctly and paid contributions at the right rates
Holiday pay — both the accrued holiday not yet taken and whether holiday pay calculations comply with the current legal requirements
Overtime and irregular pay arrangements, particularly whether these have been correctly reflected in holiday pay calculations
Commission and bonus schemes — whether any amounts are currently owed, and whether the arrangements comply with employment law
Contractual benefits — company vehicles, private medical insurance, life assurance, enhanced sick pay
Sick pay obligations, including any enhanced sick pay commitments
Maternity, paternity and shared parental leave obligations for anyone currently on leave or recently returned
Apprenticeships and training repayment clauses
Settlement agreements relating to departing employees
Any outstanding grievances, disciplinary proceedings or employment tribunal claims
A buyer should understand not only what the current wage bill is but what financial obligations — past, present and ongoing — the business carries in relation to its workforce.
Staff transfer checklist
Seller checklist
A complete staff list has been prepared, with names, roles, start dates and key terms.
Employment contracts have been located and gathered for all employees.
Payroll records are in order and available for disclosure.
Accrued holiday entitlement has been calculated for all employees.
Pension records are complete and auto-enrolment compliance is confirmed.
All bonus and commission obligations have been listed and assessed.
Sickness and absence records have been prepared.
Any disciplinary or grievance records have been prepared.
Training records and professional qualifications have been gathered.
Right-to-work documentation has been checked and is available.
Employment advice on TUPE has been taken.
A staff communication plan has been prepared and agreed with the buyer.
Key-person risk has been assessed and a retention approach is in place.
Staff data is being handled in compliance with data protection requirements.
Buyer checklist
Total staff costs — including all liabilities, not just wages — have been understood and modelled.
TUPE applicability has been reviewed with an employment lawyer.
All employment contracts have been reviewed and any irregularities noted.
Payroll records have been checked for accuracy and compliance.
Holiday and pension liabilities have been quantified.
Key staff have been identified and a retention strategy is in place.
Staff retention risk has been assessed and is reflected in the deal structure if necessary.
Any employment claims or disputes have been identified and addressed in the warranties.
A post-completion communication plan for the team has been prepared.
Handover support from the seller has been agreed and documented.
Employment advice has been taken at an appropriate stage of the process.
FAQs
Does TUPE always apply when buying a business?
No. Whether TUPE applies depends on the structure of the transaction and the specific facts — including whether a business or part of a business is transferring, or whether it is a service provider change. In a share sale, TUPE may not apply in the same way because the employing company remains the same. In an asset sale where a business transfers as a going concern, TUPE is more likely to apply. Employment advice should always be taken to confirm the position in any specific deal.
Can a buyer change staff contracts after buying a business?
TUPE restricts a buyer's ability to change employment terms where the reason for the change is the transfer itself. Changes that are genuinely for economic, technical or organisational reasons — unconnected to the transfer — may be permissible, but the line is technical and the consequences of getting it wrong can be serious. Legal advice should be taken before any changes are made to terms and conditions following a business acquisition.
Should staff be told about the sale before completion?
It depends on the specific circumstances, the deal structure, and whether any statutory information or consultation obligations apply under TUPE. In some cases, information must be provided to employees or their representatives before completion. In others, informing staff early may create unnecessary disruption. The timing should be determined with employment and legal advice, not by instinct.
Can a buyer meet staff before completion?
Possibly, but only with the seller's explicit agreement and with careful management of confidentiality. Uncontrolled contact between a buyer and employees before completion — particularly if those employees do not yet know the business is being sold — creates risk for everyone. Any pre-completion meetings with staff should be planned, agreed between the parties, and handled professionally.
What happens if a key member of staff leaves before completion?
The impact depends on how critical the individual is and how close the deal is to completion. A buyer may seek to renegotiate the price or terms, delay completion to allow a replacement to be found, ask for specific warranties about staff retention, require a longer handover period from the seller, or in serious cases decide to withdraw from the transaction. The best protection is to identify key personnel risk early and address it proactively, rather than discovering it at a late stage.
Key takeaways
Staff are often central to the value of a business — and they are one of the most consequential aspects of any business sale if they are not handled properly.
For sellers: prepare your employee information carefully and in advance. Understand the TUPE position for your transaction. Plan the communication to staff thoughtfully and agree it with the buyer. Take steps to reduce key-person risk before the business goes to market. And take employment advice — not after a problem arises, but before the deal process begins.
For buyers: do not underestimate the employment due diligence. Check not just the headlines — the wage bill and staff numbers — but the underlying contracts, liabilities and risk. Assess key-person risk honestly and factor it into your price and deal structure if needed. Agree a communication plan with the seller. And take your own employment advice independently so you understand what you are taking on.
Both sides should understand that employment mistakes in a business sale do not disappear at completion. They become the new owner's problem. Taking this part of the process seriously is not a bureaucratic exercise — it is a fundamental part of protecting the investment.
Related resources
Important disclaimer
Buy a Business Ltd is a marketplace, not a broker. Information, guides, checklists and examples on this site are for general guidance only and do not constitute legal, tax, financial, investment, lending, valuation, employment, data protection, brokerage or regulated advice.
Buying or selling a business involves risk. You should seek independent professional advice before buying, selling, valuing, financing, negotiating or completing a business purchase.
Sources and useful references
GOV.UK: Business transfers, takeovers and TUPE
GOV.UK: Transfers of employment contracts under TUPE
Acas: What a TUPE transfer is
ICO: Due diligence when sharing data following mergers and acquisitions