A settlement agreement usually lands in an employee's inbox at the worst possible moment — after a difficult meeting, often with a short deadline and a tone that suggests the numbers are fixed. They rarely are. What looks like a final offer is, in most cases, an opening position, drafted on a template the employer has used many times before.
For HR teams, the picture is the mirror image: a process that has to be commercially sensible, legally watertight, and humane enough that the departing employee signs without litigation noise afterwards. Both sides have more room to negotiate than the first draft suggests — but only if they understand what the document is actually doing.
What a settlement agreement is, and what a COT3 is not
A UK settlement agreement is a statutory contract under which an employee agrees to waive specified employment claims — typically unfair dismissal, discrimination, unpaid wages, and similar — in exchange for agreed terms, usually including a payment. For the waiver to be enforceable, the statutory conditions must be met, including that the employee receives independent legal advice from a relevant adviser whose advice is covered by professional indemnity insurance.
A COT3 is different. It is the form of agreement recorded through Acas when a dispute is settled via an Acas conciliator. A COT3 also compromises claims, but it does not require the same statutory formalities — there is no requirement for the employee to take independent legal advice, although in practice most do. COT3s tend to be shorter, faster, and more common once a tribunal claim is already on foot or contemplated through early conciliation.
Knowing which route you are on matters. A pre-claim exit conversation will almost always lead to a settlement agreement. A live or imminent tribunal claim may well be resolved by COT3. The negotiation dynamics — and the documents — differ accordingly.
Heads of terms: where the real negotiation happens
By the time a draft agreement is circulating, the commercial shape is usually set. The leverage point is earlier — at the heads of terms stage, even if it is only an informal email or a verbal "without prejudice" conversation. The headings worth thinking through carefully are:
- Termination date and notice. Will notice be worked, paid in lieu, or rolled into a longer "garden leave" period? Each has different tax and benefits consequences.
- Compensation payment. The ex gratia sum, distinct from contractual entitlements. This is usually the headline number, but it is rarely the whole story.
- Contractual entitlements. Accrued but untaken holiday, outstanding bonus or commission, share options, pension contributions, private medical cover run-off.
- Tax treatment. How each element is characterised on the payslip and in the agreement (see below).
- References. Form, content, and who within the business is authorised to give them.
- Restrictive covenants. Whether existing covenants are reaffirmed, varied, or released; whether new ones are introduced in exchange for the payment.
- Confidentiality and non-derogatory statements. Usually mutual in well-drafted agreements; often one-sided in first drafts.
- Internal announcement. An agreed wording shared with colleagues and clients can be more valuable than an extra month's pay.
- Legal fees contribution. The employer typically pays a contribution towards the employee's legal advice; the market range is well understood by employment solicitors.
The mistake employees most often make is fixating on the compensation figure while leaving references, announcements, and covenants on the employer's preferred terms. The mistake employers most often make is sending a draft so aggressive that the employee instructs a solicitor in combative mode.
The £30,000 question: employment settlement tax
The tax treatment of a settlement payment is one of the most misunderstood areas of the whole exercise. The general position under current UK rules is:
- Genuine ex gratia termination payments — compensation for loss of employment rather than for work done — can benefit from the £30,000 tax-free threshold. Anything above £30,000 is taxable as employment income, and the portion above the threshold may also attract employer National Insurance.
- Contractual payments — salary, accrued holiday, bonuses, payments in lieu of notice (PILON) — are taxable in full as earnings. Post-employment notice pay (PENP) rules mean that the value of notice cannot be dressed up as tax-free compensation.
- Payments for restrictive covenants are generally taxable in full.
- Injury to feelings payments connected to discrimination can, in some circumstances, fall outside the £30,000 cap, but the analysis is fact-specific and HMRC scrutinises the characterisation carefully.
A well-drafted agreement will allocate each element to the right column and include a tax indemnity from the employee. That indemnity is standard, but its scope is negotiable. Employees should ensure the indemnity does not cover tax that arises from the employer's own incorrect characterisation.
References, covenants, and the things people forget
A good reference can be worth more than several thousand pounds in additional compensation, particularly in regulated sectors where reference quality is scrutinised by the next employer. Agree the wording, attach it as a schedule, and name the person responsible for issuing it. A "factual reference only" clause is the industry default but is not the only option — agreed substantive references are routinely negotiated.
On covenants, ask three questions. Are the existing covenants enforceable in the first place? Are they being released, narrowed, or reaffirmed? And, if the employer wants new or extended restrictions, what is the consideration being offered for them?
Finally, think about the practical tail: return of equipment, deletion of personal data from devices, LinkedIn updates, handling of client contact, and any ongoing involvement as a consultant or witness. These often sit in a final schedule and are signed without much thought — sometimes to the employee's later regret.
Why independent legal advice is non-negotiable
The requirement for the employee to take independent legal advice is not a formality. It exists because the employee is giving up the right to bring claims that may be worth substantially more than the offer on the table. A competent adviser will pressure-test the numbers, identify claims the employee may not have spotted, and negotiate the points that the first draft quietly resolves in the employer's favour.
For employers, paying a sensible legal fees contribution is not generosity — it is risk management. An employee who feels properly advised is far more likely to sign, stay signed, and move on.
FAQ
Is the £30,000 tax-free threshold guaranteed on every settlement payment? No. It applies only to genuine compensation for loss of employment, and only to the portion that is not contractual. Notice pay, holiday pay, bonuses, and covenant payments are taxed as earnings regardless of how the agreement is labelled.
Can I negotiate the reference wording, or do I have to accept "factual only"? You can almost always negotiate it. Many employers will agree a short substantive reference annexed to the agreement, particularly where the departure is not performance-related.
What happens if I don't sign by the deadline in the draft? The deadline is usually a negotiating device rather than a hard cut-off. If you need more time to take advice — and Acas guidance suggests employees should be given a reasonable minimum period — most employers will extend rather than withdraw the offer.
Serene Jade's UK legal-tech platform, JustiScript, connects employees and HR teams with England-qualified solicitors for settlement agreement review and negotiation, with documents drafted under UK law and an interface available in more than 50 languages.