# The Civil Procedure (Amendment No.4) Rules 2005, Paragraph 20.4: Defendant’s counterclaim against the claimant


(1) A defendant may make a counterclaim against a claimant by filing particulars of the counterclaim.
(2) A defendant may make a counterclaim against a claimant—
(a) without the court’s permission if he files it with his defence; or
(b) at any other time with the court’s permission.
(Part 15 makes provision for a defence to a claim and applies to a defence to a counterclaim by virtue of rule 20.3).
(3) Part 10 (acknowledgment of service) does not apply to a claimant who wishes to defend a counterclaim.

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Source: https://www.legislation.gov.uk/uksi/2005/3515/schedule/1/paragraph/20.4 (the official version)
Page: https://openlegislation.uk/civil-procedure-amendment-no4-rules-2005/schedule-1/paragraph-20.4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.