Part 36 Offers: How to Use Them Tactically

Civil litigation in England and Wales is not just about winning or losing at trial. Settlement is always a key consideration, and the Civil Procedure Rules (CPR) provide formal mechanisms to encourage parties to resolve disputes early. One of the most powerful of these is the Part 36 offer.

Part 36 offers can put real pressure on opponents to settle because of the strict cost consequences attached to rejecting them. For claimants and defendants alike, understanding how to use Part 36 offers tactically can shift the balance of risk and reward in litigation.

This article explains what Part 36 offers, its formal requirements, cost consequences, and the strategies for deploying them effectively.

Table of Contents

Key Takeaways

Part 36 offers are powerful settlement tools under the Civil Procedure Rules.
They must meet strict formal requirements to be valid.
Rejecting a reasonable offer carries heavy cost risks if trial results are less favourable.
Timing and realistic pitching are critical for tactical effectiveness.
Courts will not enforce cost consequences if an offer is not a genuine attempt to settle.
Both claimants and defendants can use Part 36 offers strategically.
Professional advice helps ensure offers are drafted correctly and used to maximum effect.

What Is a Part 36 Offer?

A Part 36 offer is a written settlement proposal made under Part 36 of the Civil Procedure Rules. Unlike informal settlement discussions, it carries specific procedural rules and financial consequences. If a party rejects a Part 36 offer and later fails to achieve a better outcome at trial, the rejecting party can face significant cost penalties.

Part 36 offers can be made:

Before proceedings begin.
At any stage during litigation.
Even during appeals.

They can apply to all or part of a claim, and can be used by either claimants or defendants. Their main purpose is to create certainty and incentivise sensible settlement decisions.

Formal Requirements of a Valid Part 36 Offer

For an offer to qualify as a Part 36 offer, it must meet strict conditions under the CPR. Key requirements include:

Written form: The offer must be in writing.
Clear reference: It must expressly state that it is made under Part 36.
Relevant acceptance period: The offer must allow the offeree at least 21 days to accept. This period is known as the “relevant period.”
Scope: The offer must make clear whether it relates to the whole claim, part of the claim, or specific issues (such as liability or damages).
Interest and costs: Where relevant, the offer must clarify how interest and costs are treated.

Failure to meet these requirements means the offer will not be treated as a valid Part 36 offer, and the cost consequences will not apply.

Why Part 36 Offers Matter in Civil Litigation

Part 36 offers matter because they shifts the risk calculation for both sides. The CPR is designed to encourage early settlement, reduce the burden on the courts, and promote proportionate costs.

For the offeror, a well-judged Part 36 offer provides a safety net. If the opponent refuses and fails to do better at trial, the offeror gains significant cost advantages.

For the offeree, rejecting a Part 36 offer carries real danger. If the court’s final judgment is less favourable than the offer, they may face enhanced costs, interest penalties, and potentially an additional damages award.

In practice, this mechanism creates a strong incentive to think carefully before rejecting a reasonable settlement proposal.

Costs Consequences of Part 36 Offers

The most important feature of Part 36 offers is their cost consequences.

If a claimant makes a Part 36 offer which the defendant rejects, and the claimant goes on to secure a judgment equal to or better than their offer, the court will usually order the defendant to pay:

The claimant’s costs from the end of the relevant period, on the indemnity basis.
Interest is charged on those costs at a higher rate (up to 10% above the base rate).
Interest on damages at an enhanced rate.
An additional award of up to 10% of damages or costs, capped by the CPR.

If a defendant makes a Part 36 offer which the claimant rejects, and the claimant fails to obtain a judgment better than that offer, the claimant will usually have to:

Pay the defendant’s costs from the end of the relevant period.
Pay interest on those costs.

These consequences demonstrate the tactical power of Part 36: they are designed to punish parties who reject reasonable settlement offers without good reason.

Tactical Use of Part 36 Offers

Timing Your Offer

The point at which a Part 36 offer is made can be just as important as the amount proposed. Offers made too early, before the issues are clear, may be dismissed as premature. On the other hand, leaving it too late reduces the pressure on the other side.

A strong tactical moment often occurs after disclosure or once expert evidence is available, when both parties can see the strengths and weaknesses of the case.

Calibrating the Offer

The offer must strike a balance. If it is unrealistically high (for claimants) or low (for defendants), the court may decide it was not a genuine attempt to settle and refuse to apply the usual cost benefits.

Equally, an offer that is too generous could result in leaving money on the table. The key is to pitch the offer at a level that would be attractive to the other side but still favourable if litigation continues.

Drafting the Offer Clearly

Ambiguity can undermine a Part 36 offer. The wording should make it clear what the offer covers: the whole claim, part of the claim, or specific issues such as liability. The terms should also address interest and costs. A poorly drafted offer may not qualify under Part 36, losing its tactical advantage.

Using Part Offers Strategically

Part 36 is flexible. Offers can be made in relation to liability only, damages only, or the entire claim. For example, a defendant might admit liability but dispute the quantum and issue a Part 36 offer covering damages.

Similarly, a claimant may make an offer that accepts a lower figure in exchange for an admission of liability. These strategies can narrow the issues and put pressure on the opponent to settle specific points.

Risks and Pitfalls to Avoid

While Part 36 offers are powerful, they are not risk-free.

Not a genuine attempt to settle: Courts have refused to apply cost consequences where offers were seen as unrealistic. For example, in Yieldpoint v Kimura (2023), a claimant’s offer was so close to the full value of the claim that it was not considered a genuine settlement attempt.
Timing mistakes: Waiting too long to make an offer reduces its pressure. Equally, making one too early without sufficient evidence can weaken credibility.
Ignoring cost exposure: Rejecting a valid Part 36 offer exposes a party to severe costs if the judgment is less favourable than the offer.
Poor drafting: Offers that do not comply strictly with CPR requirements may be ruled invalid, stripping away tactical benefits.

These risks highlight the importance of careful drafting and legal advice before making or rejecting an offer.

Responding to a Part 36 Offer

Receiving a Part 36 offer requires a serious and calculated response. Parties should:

Assess the merits of the case: Can the offer realistically be beaten at trial?
Consider financial exposure: Even a strong case carries risk; if the judgment comes in lower, the costs could outweigh the gains.
Seek legal advice quickly: The 21-day relevant period is strict. Delay reduces flexibility.
Negotiate alternatives: A counteroffer, including another Part 36 offer, may shift the balance back in your favour.

Accepting a Part 36 offer must be done in writing and within the acceptance period. Once accepted, the case settles on those terms, and the court enforces the agreement.

Practical Checklist for Using Part 36 Offers

For claimants:

Assess the strength of your case after disclosure or expert evidence.
Pitch the offer attractively but not excessively.
Ensure the offer clearly complies with CPR requirements.
Monitor deadlines carefully and document acceptance or rejection.

For defendants:

Consider early offers to cap exposure and shift cost risk.
Use Part 36 tactically on damages or liability alone if appropriate.
Be realistic about trial prospects before rejecting a claimant’s offer.
Keep evidence organised to justify your position.

Let Our Experts Help You

Part 36 offers can make or break a case. If drafted or handled poorly, they can expose you to serious costs risks. At Civil Litigation Lawyers, we help clients use Part 36 offers to their advantage, ensuring compliance with the CPR, maximising tactical benefit, and protecting your financial interests.

Contact us today to discuss your case and learn how a well-timed Part 36 strategy could strengthen your position.