Code of Civil Procedure section 428.80

The counterclaim is abolished. Any cause of action that formerly was asserted by a counterclaim shall be asserted by a cross-complaint. Where any statute refers to asserting a cause of action as a counterclaim, such cause shall be asserted as a cross-complaint. The erroneous designation of a pleading as a counterclaim shall not affect its validity, but such pleading shall be deemed to be a cross-complaint.

Source: Section 428.80, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=CCP§ionNum=428.­80.­ (updated Jan. 1, 1971; accessed Dec. 1, 2025).

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Verified:
Dec. 1, 2025

§ 428.80's source at ca​.gov