Key Takeaways
- A Part 36 offer is a powerful legal tool in litigation, shaping costs and strategy for both claimants and defendants.
- Failing to respond within strict deadlines can lead to losing settlement rights and facing substantial cost penalties.
- You generally have 21 days to accept a Part 36 offer and gain full cost protection, making prompt and informed action essential.
- Accepting a strategically sound Part 36 offer can help you avoid prolonged court proceedings, minimising stress and saving significant legal costs.
- Refusing or failing to beat a Part 36 offer at trial can result in large cost liabilities, even if partial success is achieved at court.
- Each Part 36 offer has unique advantages and risks; specialist advice is vital to avoid mistakes and protect your position.
- Our solicitors are rated Excellent on Trustpilot, with over 130 five-star reviews and a 4.9/5 satisfaction score.
- Our expert lawyers provide clear, tactical guidance on all Part 36 rules, ensuring you know your options and can respond strategically.
For tactical, hands-on guidance, book a Free Consultation or call us on 0207 459 4037 today.
Should You Accept a Part 36 Offer in the UK? Costs, Risk and Strategic Settlement Advice
A single misstep with a Part 36 offer can change the entire financial landscape of your dispute, sometimes swinging tens of thousands of pounds in costs one way or the other. Parties in England & Wales regularly face harsh consequences for overlooking seemingly technical Part 36 rules – especially around the 21-day deadline and the real-world impact of accepting or refusing offers on costs.
Understanding the exact rules, deadlines, and cost implications is crucial whether you are considering making, accepting, or refusing a Part 36 offer. By getting this decision right, you can secure early commercial settlement or avoid devastating costs liabilities.
If you need tailored strategic advice on Part 36, speak to our London-based team of litigation solicitors. Call 0207 459 4037 or book a Free Consultation before acting on any Part 36 offer.
What Is a Part 36 Offer in UK Litigation?
A Part 36 offer is a formal, written settlement offer governed by Part 36 of the Civil Procedure Rules (CPR) in England and Wales. Its unique purpose is to encourage swift, fair settlement of disputes by attaching significant cost rewards or penalties depending on how each party responds.
A valid Part 36 offer must:
- Be clear, in writing, and expressly indicated as a Part 36 offer.
- Set a “Relevant Period” of at least 21 days during which it may be accepted for standard costs protection.
- Specify whether the offer is to resolve all or only part of the dispute.
These offers are widely used in cases involving breach of contract, construction disputes, debt claims, professional negligence, and more.
How Does a Part 36 Offer Work in Practice?
As soon as one party (claimant or defendant) serves a Part 36 offer, a clear timetable and set of rules take effect. The opposing side must then assess and respond within the deadline, as any decision can shift the eventual cost and outcome of the case.
Key mechanics of the Part 36 regime:
- The offer must be open for acceptance during the 21-day “Relevant Period.”
- Acceptance within this window concludes the claim (or relevant part) automatically, with certainty on cost consequences.
- If rejected, or simply not accepted within 21 days, the court will determine later at trial whether the declining party managed to “beat” the offer. This assessment is central to who bears what costs.
A Part 36 offer can be an invaluable negotiating tool for both sides, but mishandling it can be financially catastrophic.
Should I Accept or Reject a Part 36 Offer? Key Factors to Consider
Deciding whether to accept or reject a Part 36 offer is a strategic process that demands careful, practical analysis. The main factors to assess include:
- The strength of your case and available evidence.
- The financial and legal terms of the offer compared to your realistic chances at trial.
- Legal costs already incurred and likely to be incurred up to trial.
- Potential cost penalties if you fail to secure an outcome more favourable than the offer at court.
Pausing to consider these issues with guidance from our expert litigation solicitors lets you make informed, risk-managed decisions.
What Are the Costs Risks of Accepting or Rejecting a Part 36 Offer?
“Costs risk” is the main reason the Part 36 regime works so powerfully. The rules at CPR 36.17 set out automatic cost penalties and rewards, depending on the conduct of each party.
If a claimant refuses a defendant’s Part 36 offer and then fails to win more at trial, the claimant usually becomes liable for:
- The defendant’s legal costs from the end of the Relevant Period.
- Interest on those costs, often at up to 10% above the Bank of England base rate.
- Losing the right to their own costs beyond the expiry of the relevant period.
If a defendant refuses a claimant’s offer and the claimant beats it at trial, the defendant can be penalised with:
- The claimant’s costs on the indemnity basis from the end of the Relevant Period.
- Interest penalties on damages and costs (up to 10% above base).
- An extra sum of up to £75,000 (per CPR 36.17(4)(d)).
How Long Do I Have to Respond to a Part 36 Offer?
A Part 36 offer must give at least 21 days – the “Relevant Period” – during which it can be accepted on standard terms with full cost protection. The offeror may choose to keep the offer open for longer, but never for a shorter period.
If you do not respond within 21 days:
- The Part 36 offer remains “open,” but you lose the automatic cost protection of the Relevant Period.
- Accepting after 21 days will usually require the court’s permission, and cost advantages may be reduced or lost as the court exercises discretion on who pays costs incurred after expiry.
Diarising the 21-day limit and acting promptly is vital to protect your position – and your wallet.
How to Respond to a Part 36 Offer: Step-by-Step Guide
Responding correctly to a Part 36 offer is essential to protect your costs and position. Follow these steps for maximum protection:
- Carefully read and understand the offer: Note the terms, amount, and the Relevant Period.
- Reassess your case: Review all evidence, developments, and your prospects at trial.
- Get specialist legal advice: Our experienced Part 36 lawyers can advise whether the offer is fair, and explain the cost risks.
- Respond in writing before the deadline: Accept, reject, or make a counter-offer (which can also be structured as a formal Part 36 offer).
- Keep thorough records: Retain all written correspondence and confirmations of receipt.
Our team can support you immediately if you need a same-day tactical review before replying.
Can a Part 36 Offer Be Withdrawn or Changed?
A Part 36 offer can be withdrawn or amended only:
- By written notice before it has been accepted.
- After the expiry of the Relevant Period, unless you have expressly reserved the right to withdraw earlier.
Withdrawing or reducing a Part 36 offer during the 21-day Relevant Period – without the recipient’s consent or the court’s permission – typically removes the automatic costs protection associated with the offer.
Our litigation lawyers can help you navigate the strategic risks before acting.
Strategic Part 36 Offer Advice: Tips for Claimants and Defendants
Effective use of Part 36 offers can provide game-changing leverage. The right timing, amount, and tactics can transform your negotiating and cost position.
For Claimants
- Make realistic, early Part 36 offers to increase costs pressure.
- Review and update your offer after critical evidence or disclosure.
For Defendants
- Use Part 36 offers to manage and cap future cost risk, particularly when liability is clear but value disputed.
- Consider late-stage “drop-dead” offers before trial to crystalise risk for claimants.
Our specialist Part 36 solicitors can help you design the right offer and timing for your dispute.
Legal Framework: Laws and Deadlines for Part 36 Offers in England & Wales
All Part 36 procedures are governed by:
- Civil Procedure Rules (CPR) Part 36, and specifically CPR 36.3 to 36.17.
- CPR 36.17 mandates automatic cost penalties unless applying them would be “unjust.”
- CPR 44 contains the broader legal framework for the recovery and assessment of litigation costs.
Important procedural points:
- The Relevant Period for acceptance is a minimum of 21 days.
- Part 36 offers can be made before, during, or even after trial starts, subject to court approval.
- Missing time limits or procedural steps – e.g. in claims involving children or protected parties – can severely restrict cost protection.
Missing deadlines or mishandling the rules undermines your settlement leverage. Our solicitors can ensure your Part 36 offer is compliant and fully effective.
What Do the Courts Say About Part 36 Offers?
| Case | Facts | Outcome | Significance |
|---|---|---|---|
| Gibbon v Manchester City Council [2010] EWCA Civ 726 | Claimant refused defendant’s Part 36 offer; won at trial but for less than the offer. | Ordered to pay defendant’s post-offer costs. | Strict enforcement – declining offers without justification leads to significant cost penalties. |
| JLE v Warrington & Halton Hospitals NHS Foundation Trust [2018] EWHC 1582 | Defendant’s offer exceeded damages later awarded at trial. | Claimant penalised with adverse costs. | Highlights need to accept well-pitched offers to avoid unnecessary costs exposure. |
| Smith v Trafford Housing Trust [2012] EWHC 3221 | Defendant refused claimant’s Part 36 offer, lost at trial for more than the offer. | Ordered to pay enhanced costs and 10% uplift. | Shows punitive cost risk to defendants who decline strong claimant offers. |
| Rawbank SA v Travelex Banknotes Ltd [2020] EWHC 1619 (Ch) | Both parties made competing Part 36 offers in a complex contract dispute. | Complex outcome, costs split | Precision in offering and record-keeping is crucial where multiple Part 36 offers exist. |
A review of major cases shows consistent judicial strictness: the courts rarely rescue parties from cost risks of refusing or mishandling Part 36 offers.
Our Approach to Winning Part 36 Offer Advice
Our litigation team combines in-depth legal knowledge with practical commercial sense to extract maximum benefit from Part 36 for our clients. We deliver:
- Thorough case analysis to identify your true litigation risk and settlement leverage.
- Drafting of robust, bespoke Part 36 offers to secure optimum cost protection.
- Strategic advice on making, responding, or revising offers at every stage of litigation – whether in breach of contract, construction disputes, professional negligence or other claims.
- Ongoing risk reviews to protect your interests as evidence and circumstances shift.
If you want clarity, control and confidence in your next litigation move, speak to our Part 36 specialists for a fixed-fee review.
Frequently Asked Questions
What happens if I accept a Part 36 offer after 21 days?
If you accept late, you lose automatic cost protection and the court will decide who pays the post-deadline costs. You could be liable for part or all of the other side’s legal fees after the Relevant Period.
Can I make a counter-offer after receiving a Part 36 offer?
Yes. You can send your own Part 36 offer or any other form of proposal, while the original offer usually remains open until formally withdrawn.
What is the difference between a Part 36 offer and a “without prejudice” offer?
Part 36 offers are governed by strict court rules and have specific cost consequences. “Without prejudice” offers are informal and do not automatically trigger adverse cost penalties.
How do courts decide who pays costs after a Part 36 offer?
Courts look at which party “beat” the offer at trial. If you do not achieve a better result than the offer, you typically suffer cost penalties as outlined in CPR 36.17.
If I reject a Part 36 offer, can I still settle later?
Yes, you can settle at any time. However, if the later settlement is on worse terms than the earlier offer, you may face adverse cost consequences from the expiry of the offer’s period.
Does a Part 36 offer affect my position at trial?
Yes. Making or accepting a sensible Part 36 offer positions you as a reasonable party. If your opponent fails to beat your offer, costs consequences work in your favour.
Does accepting a Part 36 offer end the court case?
Normally, yes. Acceptance of a valid offer concludes the proceedings (or the relevant part), though formal steps like a consent order may still be needed to close the matter officially.
Can defendants use Part 36 offers to put pressure on claimants?
Absolutely. Defendants frequently deploy Part 36 offers as a tactical means to limit risk and encourage claimants to settle on realistic terms.
Are Part 36 offers appropriate for all disputes?
They can be highly effective in most civil disputes, but require care in multi-party cases or where the remedy sought is non-financial.
What if both sides make Part 36 offers?
Each offer is judged independently. The court will compare trial outcomes with both offers and apply costs rules accordingly, which can sometimes result in a split liability for costs.
For deeper insights on these points, consult our litigation glossary or Part 36 strategy library.
Speak to Our Part 36 Offer Solicitors
If you have received, are considering, or want to serve a Part 36 offer, prompt and strategic advice is critical. Our expert litigation lawyers can:
- Carry out a cost-risk review of your case and any offers received or made
- Draft or respond to Part 36 offers to protect your financial and commercial interests
- Negotiate settlements or run robust trial defences where settlement is not in your favour

















