Part 36 (Fixed Costs Tracks) Calculator

For claims subject to the fixed recoverable costs regime in the fast track or intermediate track (CPR Part 45, Sections VI/VII), Part 36 costs consequences work differently from the standard track: indemnity costs are replaced by an uplift on fixed costs, and enhanced interest and the tiered additional amount interact with that uplift. Select the track and band, enter the offer/judgment details, then pick the stage the case had reached both when the relevant period expired and at judgment — the difference between those two stages drives the uplift.

Part 36 — Fixed Costs Tracks

Costs consequences under CPR r.36.24 where a party beats (or fails to beat) its own Part 36 offer at trial, in a fast track or intermediate track fixed-costs claim.

Personal injury claim — QOCS applies (CPR 44.13–44.16)

Relevant only where the defendant beats its own offer: any costs enforceable against the claimant are capped at the aggregate of the orders for damages, interest and costs in the claimant's favour (CPR r.44.14).

Track and complexity band

Complexity band

Additional defendants (Band 4 only)

Legal representative practises in London — 12.5% uplift (CPR 45.29D / PD 45 para 5.1)

Who made the offer?

Offer and judgment details

Part 36 offer amount (£)

Date of service of offer

Amount awarded by the court (£)

Also used to fix the damages tier / band percentage in the fixed-costs tables at both stages below (r.36.24(8)).

Date of judgment

Enhanced interest rate (r.36.17(4)(a)/(c), applied via r.36.24(1))

% above base rate Fixed rate

% above base (max 10)

Base rate is the Bank of England base rate, applied automatically over the period (and varied where it changed).

Stage reached when the relevant period expired

The relevant period is 21 days after service of the offer (or such longer period as agreed) — r.36.3(g).

Fast track stage (Table 12)

Stage reached at judgment

Fast track stage (Table 12)