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Apply to become someone's deputy (make a declaration): Form COP4
What is this form for?
Use this form to tell the court about your personal and financial circumstances, and how you would make decisions on behalf of someone (become their deputy).
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Official form and guidance ↗
Official documents
First page of the official PDF (8 pages in total). Use the official document links to view every page.
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Official publication updated 2015-08-31. Catalogue checked 9 November 2026. Follow the official guidance for the form's scope, required documents and filing route. Source: HMCTS. Crown copyright, Open Government Licence v3.0.