How to terminate a contract in the UK: notice and letters

To terminate a contract in the UK, use the right your contract gives you and follow its notice clause exactly: the length of notice, the form it must take, and the person it must go to. If you are an employee, you must give at least one week's notice once you have worked for a month, and more if your contract says so. If you are a freelancer or contractor, your notice is whatever your service agreement says.

Most contracts are easy to end, and just as easy to end badly. An email to the wrong person, a last day counted from the wrong date, or a walk-out after a bad week can turn a clean exit into a breach of contract or a disputed final invoice.

This guide is for when you have decided to go, with a sample notice for freelancers and a sample letter for employees. If you are still deciding whether to sign, start with our page on the termination clause instead.

Key Takeaways

Your contract sets the route out. Before you send anything, check the notice period, who can terminate and on what grounds, and how notice has to be served.

Employees must give at least one week's notice after a month's service under section 86 of the Employment Rights Act 1996. Most employment contracts ask for more, and the contract figure is the one to meet.

Freelancers and contractors have no statutory notice period. As a general rule, an open-ended arrangement with no notice clause can be ended on reasonable notice, while a contract for a set period runs to its end date.

Notice served the wrong way can be treated as no notice at all. If the contract says post to a named address, an email may not count.

Walking out, or terminating over a breach that turns out not to be serious enough, can put you in breach yourself. An early exit agreed in writing is almost always the safer route.

Before you terminate a contract: five things to check

Find the termination clause (it may be headed "Notice" or "Ending this agreement") and the separate notices clause, which usually sits near the end with the boilerplate. Then answer five questions.

Which rules apply to you? Employees have a statutory minimum notice period. Gov.uk lists minimum notice among the rights that workers "usually are not entitled to", and self-employed people have only the rights "set out by the terms of the contract they have with their client". Which you are turns on how the work actually runs, whatever the label at the top of the document says.
What right to end it do you have? Termination on notice, or for convenience, needs no reason. Termination for cause needs a breach by the other side, usually one the clause defines.
How much notice, and in what form? Look for the period ("30 days' written notice"), whether it has to be in writing, and whether email counts as writing for this contract.
Where does it have to go? Many notices clauses name a person, a postal address or an email address, and some say when a notice sent each way is treated as received.
What happens at the end? Final invoices or final pay, work in progress, return of property, and the obligations that carry on afterwards, such as confidentiality and restrictive covenants.

If the wording is dense, Ookulli's AI contract review pulls out the termination, notice and post-termination terms in plain English, points each one back to the wording it came from, and names the UK law where there is one, so you can answer those questions before you commit to a date. For how these clauses are usually built, see our guide to termination clauses in UK contracts.

If your contract says nothing about notice

Employees still have the statutory minimum, which is covered in the employee section below.
Freelancers on an open-ended arrangement, such as a rolling retainer with no end date, can generally end it by giving reasonable notice. What counts as reasonable is judged on the facts when you give it, such as how long you have worked together and what is normal in your line of work. If in doubt, give more rather than less.
Contracts for a set period or a single project generally run until the period or the project ends. For a freelancer, ending one part-way through needs a right in the contract, the client's agreement, or a serious breach by the client. If you are an employee on a fixed-term contract, what you can do turns on whether it has an early termination clause, and our guide to fixed-term contracts covers both cases.

How to terminate a freelance or service contract

Confirm your right to end it. If either party can terminate on notice, you need no reason. If you are relying on the client's breach instead, read the section on breach below first, because that route is less forgiving.
Work out the end date and write it down. Count from when your notice is treated as received under the contract, then put the actual date in the notice. "30 days from receipt" invites an argument. "This agreement will end on 16 October 2026" does not.
Serve it exactly as the contract says. Use the method, address and recipient in the notices clause, and send an email copy as a courtesy if it requires post. If the contract rules out notice by email, an emailed termination may not be effective, and the contract carries on.
Make it clear and unconditional. Say that you are terminating, under which clause, and when the agreement ends. A message saying you are "thinking about stepping back" is not notice.
Plan the handover and the final invoice. Note what you will deliver before the end date and when you will invoice for it.
Ask for written acknowledgement. A one-line reply confirming receipt and the end date closes off most later disputes.

Take Priya, a freelance UX designer on a rolling retainer. Her agreement lets either party end it on 30 days' written notice "delivered to the address in clause 18". She tells her day-to-day contact on Slack that she is wrapping up at the end of the month. Four weeks later the client says no valid notice was served and expects another month of work. Clause 18 names the finance director and a postal address, and a short letter to that person on day one would have ended the retainer on the date she chose.

Sample notice to terminate a service agreement

Adapt the details to your contract and keep the tone neutral. Anything you write in a notice can be read back to you later.

[Your name or business name]

[Date]

To: [name and address from the notices clause]

Notice of termination: [name of agreement] dated [date]

I am writing to give notice that I am terminating the agreement between [client name] and [your name or business name] dated [date], under clause [number], which allows either party to end it on [period] written notice.

The agreement will end on [end date]. I will continue to provide the services as agreed until then. Before that date I will [deliver or hand over the work in progress], and I will send my final invoice for work completed up to the end date by [date].

Please confirm that you have received this notice and the end date.

[Your name]

How to hand in your notice as an employee

How much notice you have to give

Once you have worked for your employer for a month, you must give at least one week's notice, however long you have been there. That is section 86(2) of the Employment Rights Act 1996. Your contract will usually ask for more, often a month, and that is the figure you have to meet. If you have worked there for less than a month and your written statement sets no notice period, Acas's guidance is that you do not have to give any. The bigger numbers you may have seen, rising to 12 weeks, are what your employer owes you; our guide to the statutory notice period sets them out.

💡 Pro Tip: Check your written statement of employment particulars before you resign. It has to say how much notice you must give, and it is often clearer than the contract.

Putting your resignation in writing

According to gov.uk, your contract tells you whether notice has to be in writing, and if it does not, you can resign verbally. Write it down anyway. Acas suggests telling your manager or HR that you are resigning, how much notice you are giving and your expected last day, and asking them to confirm receipt. An email does that job unless your contract says otherwise.

Two points catch people out. Your employer cannot reject your resignation, so you do not need permission to leave, only to leave early. And once you have resigned you cannot simply take it back: if you change your mind, tell them straight away, but they do not have to accept the withdrawal.

Your notice usually runs from the start of the day after you hand it in. Put the last day you have calculated in your letter and ask your employer to say if they work it out differently.

Sample resignation letter

[Date]

Dear [manager's name],

Please accept this letter as notice of my resignation from my role as [job title] at [employer name].

My contract requires [notice period] notice, so I understand my last working day will be [date]. Please let me know if you calculate it differently.

Could you also confirm how much accrued holiday I have left, and whether you would like me to take it during my notice period or have it included in my final pay?

I will do what I can to hand over my work smoothly before I leave.

Yours sincerely,

[Your name]

Do not send a standard letter like this if you are resigning because of something your employer has done. Acas warns against using its own template in that situation, and says a resignation over a serious breach should explain clearly why you are leaving.

Tom has a one-month notice period, and his new employer wants him in two weeks. His employer does not have to let him go early, and if he just stops coming in he is likely to be in breach of contract. So he asks in writing, offers to use five days of built-up holiday to close part of the gap, and gets the agreed last day confirmed by email. If you leave early by agreement, Acas says you are usually paid only for the time you work, unless you agree something else, such as taking accrued holiday.

Ending a contract early by agreement

The cleanest way to end a contract is the one both sides sign up to. A short termination agreement, which can be an exchange of emails for a simple arrangement, lets you choose the end date and settle the loose ends at once. Cover:

the end date
what is paid and when: the final invoice, notice pay or holiday pay
what happens to work in progress, and who owns it
what you hand back, such as equipment, documents, data and logins
which obligations carry on, such as confidentiality
whether either side is giving up any claims

Employees have three common routes, and each has its own rules:

Payment in lieu of notice: Your employer pays your notice and your employment ends straight away. Gov.uk is clear that you can only get payment in lieu if it is in your contract or you agree to it. Our guide to payment in lieu of notice covers what the payment has to include.
Garden leave: You stay employed and on the same pay and contractual benefits, but away from work, until your notice runs out. See our guide to garden leave and notice periods.
A settlement agreement: If the deal involves you giving up possible tribunal claims, an ordinary agreement will not do it. Under section 203 of the Employment Rights Act 1996, a term stopping you bringing tribunal claims under the Act is void unless the claim is settled through Acas conciliation or the agreement meets the statutory conditions. Those conditions include that the agreement is in writing and that you have received advice from an independent adviser it names. Our settlement agreement checklist goes through it clause by clause.

What happens if you give too little notice or walk out

If you are an employee

If you leave without the notice your contract requires, and your employer has not agreed, Acas says you are likely to be in breach of contract. In practice:

You are paid for the time you worked, not for the notice you did not serve.
Your employer cannot simply keep back wages you have earned. Under section 13 of the Employment Rights Act 1996, a deduction from wages needs a statutory basis, a term of your contract you were given in writing, or your written agreement given beforehand. Some contracts do include such a term, for example to cover the cost of an agency replacement, so check yours.
Your employer could claim its losses. Acas notes that an employer might go to the county court in England and Wales, or the sheriff court in Scotland, to recover costs like these. Your references can suffer too, which matters most in regulated work such as financial services or care.
Your restrictive covenants are still there. They are written to apply after you leave, and gov.uk warns that your employer could take you to court if you breach them. Our page on restrictive covenants explains the test that decides whether yours are likely to hold.

If you are a freelancer or contractor

Ending a service agreement without the right to, or on less notice than it requires, is a breach. The client may be able to claim damages aimed at putting it where it would have been if the contract had run its course. That could include the extra cost of getting someone else to finish the work at short notice, subject to any limitation clause in the agreement.

What you were already owed for work done does not disappear, because rights that accrued before termination generally survive it, although you should expect your final invoice to become part of the negotiation. Confidentiality, intellectual property and return-of-property terms are commonly written to survive termination too. Check which of yours do.

Ending a contract because the other side broke it

Freelancers: unpaid invoices and other serious breaches

Start with your contract. Many service agreements give each party an express right to terminate for material breach or non-payment, often after a written warning and a period to put things right. If yours does, follow that process to the letter: send the warning, let the period run, then terminate under that clause.

If there is no express right, you are relying on the common law, which lets you end a contract for a repudiatory breach: one so serious it goes to the heart of the agreement. Whether a particular breach reaches that bar is often disputed. If you terminate and it turns out the breach was not serious enough, your termination can itself be treated as a repudiatory breach, and the claim runs against you. Do not assume a single late payment is enough, and take advice before relying on this route.

Do not sit on it either. Carrying on as if nothing has happened, or waiting too long, can be treated as affirming the contract, and you can lose the right to terminate for that breach.

You can also put pressure on a slow payer without ending anything. If your client is a business, you can charge statutory interest on a late payment at 8% plus the Bank of England base rate, unless your contract sets a different rate. On top of that you can charge a fixed sum for recovering the debt: £40 on a debt under £1,000, £70 from £1,000 to under £10,000, and £100 on £10,000 or more.

Dan, a freelance developer, is owed two invoices on a six-month build under an agreement that lets either party terminate if an undisputed invoice is still unpaid 14 days after a written reminder. Instead of firing off a termination email, he sends the reminder and reissues both invoices with statutory interest added. The client pays on day 12. Had it not, Dan would have had a clear contractual right to end the agreement, rather than an argument about whether two late invoices were serious enough.

Employees: resigning over a serious breach

If your employer has seriously breached your contract, for example by regularly not paying you the agreed amount, you may be entitled to resign without notice and treat it as a dismissal. That is what section 95(1)(c) of the Employment Rights Act 1996 covers, and the claim is usually called constructive dismissal.

Acas does not play down the risks. A constructive dismissal claim can be difficult to win, and you usually need a minimum length of service to bring one. The time limit is strict: in most cases three months minus one day from the end of your notice period, or from the day you resigned if you gave no notice. Its advice is to raise the problem with your employer, then a formal grievance if that does not work, and to get legal advice before you resign. If you do resign, say clearly in your letter why you are leaving.

Work in progress, final invoices and final pay

For freelancers

Invoice everything up to the end date. The right to be paid for work already delivered is generally an accrued right that survives termination. Send the final invoice promptly and itemise it.
Check what the contract says about part-finished work. Some agreements pay a proportion of an unfinished milestone, some pay only on completion, and some say nothing, which usually means a negotiation. Our guide to payment terms in freelance contracts covers the wording to look for.
Read the IP clause before you hand files over. Some transfer ownership on delivery and others only on payment.
Return or delete client material as the confidentiality or data terms require, and confirm in writing that you have.

For employees

Final pay usually arrives on your normal payday, not on your last day, and it may differ from a normal month because of holiday taken or a part month worked.
Untaken statutory holiday is paid. When you leave, your employer must pay for statutory leave you have built up and not taken, even on a dismissal for gross misconduct. If you have taken more than you built up, gov.uk says your employer must not take money from your final pay unless that was agreed in writing beforehand.
Bonus and commission during your notice period are payable unless your contract says otherwise.
You should get a P45. Your employer has to give you one when you leave.

When to get legal advice before ending a contract

Most contracts can be ended without a solicitor. Get advice first if:

you want to leave because of the other side's breach, whether that is a client who has not paid or an employer who has seriously broken your contract
you have been offered a settlement agreement, where independent advice is one of the conditions for it to be binding
your restrictive covenants could stop you taking a job or client you already have lined up
the contract is high-value, or the other side disputes that your notice was valid
a tribunal claim is possible, because the time limits are short

This article is general information, not legal advice. The statutory rules described here come from the Employment Rights Act 1996, which applies in England, Wales and Scotland; Northern Ireland has its own equivalent legislation. If you are in a dispute, or ending a contract because of a breach, speak to a qualified solicitor.

How to terminate a contract: FAQ

Can I terminate a contract by email?

Often, but not always. For a service agreement, check the notices clause: if it requires post to a named address or rules out email, an emailed notice may not count. For employment, your contract says whether notice has to be in writing, and Acas treats a letter or an email as putting your resignation in writing.

How much notice do I have to give to end a contract?

Whatever your contract says, with one floor: once you have a month's service, an employee's notice cannot be less than a week (section 86 of the Employment Rights Act 1996). Freelancers and contractors have no statutory minimum. If an open-ended agreement is silent on notice, reasonable notice generally applies, and what is reasonable depends on the circumstances at the time.

Can my employer refuse to accept my resignation?

No. Acas is clear that an employer cannot reject a resignation. What your employer can do is hold you to your notice period, so if you want to leave sooner you need their agreement, ideally in writing.

Can I change my mind after handing in my notice?

You can ask, but your employer does not have to agree. Tell them as soon as you can. Acas says an employer should give a withdrawal serious consideration if you changed your mind quickly, or resigned while affected by something like a health condition or a bereavement.

Can I end a freelance contract early if the client has not paid?

It is only safe if your contract gives you that right, usually after a written reminder and a set period to pay. Without one, the non-payment would need to be a repudiatory breach, which is often disputed, and getting that wrong can put you in breach instead. If your client is a business, charge statutory late payment interest meanwhile, and take advice before you terminate.

What should a letter to terminate a contract include?

The name and date of the agreement, the clause you are relying on, a clear statement that you are terminating it, the exact end date, what happens to outstanding work and your final invoice or final pay, and a request to confirm receipt. Send it to the person and address your contract names, by a method it allows.