Jurisdiction(s):
United Kingdom

Key definition

Detailed assessment definition

What does Detailed assessment mean? The court process for calculating how much one party must pay another after a costs order, by scrutinising a bill of costs and allowing only costs that are reasonably incurred and proportionate. In England and Wales, detailed assessment is a formal procedure under the Civil Procedure Rules (notably CPR Part 47 and associated Practice Directions). It commonly follows an inter partes costs order or a solicitor–client costs challenge. The receiving party serves a bill of costs; the paying party serves points of dispute; replies may follow. A costs judge or district judge then assesses the items (often provisionally on the...

Guide to detailed assessment under CPR 47 post-Jackson: provisional assessment, bills of costs, points of dispute, hearings, certificates, settlement and appeals (England and Wales) [Archived]

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Practice notes

ARCHIVED: This Practice Note has been archived and will not be updated.

cpr provisions

The rules governing detailed assessment appear in CPR 47 and practice direction 47. Following the Jackson Reforms, the principal alteration in Part 47 is the launch of provisional assessment—a paper-based form of detailed assessment—set out at CPR 47.15 and CPR PD 47, para 14.1 onwards. As this is a wholly new procedure, we cover it in Lexis+® UK DR under costs as ‘provisional assessment’, rather than within the detailed assessment topic.

Additional revisions to Part 47 and practice direction 47 include:

revised paragraph numbering, reflecting a practice direction tailored to Part 47, replacing the former Costs Practice Direction
a new rule allowing the court, on its own initiative, to order the venue for the detailed assessment; previously, parties were invited to make representations...

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Web page updated on 21/05/2026

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