All persons residing in Ukraine — including foreign nationals — must register their place of residence at the local administrative service centre (TsNAP — Tsentr nadannia administratyvnykh posluh) or through the Diya e-governance portal. Registration establishes your official address in the State Population Register and is required before applying for a Tax Identification Number and social services. This guide explains the registration process, required documents including a valid passport and proof of accommodation, the registration certificate issued after completion, and the legal requirements for residence registration under Ukrainian law.