About

Why this exists

Most people looking up UK residence find the 183-day rule and stop there. The actual test is a sequence: the automatic overseas tests, then the automatic UK tests, then the sufficient ties test — and the answer can turn on 16 days or survive 182.

This checker works through that sequence in HMRC's own order and shows its working at every step, with the RDR3 paragraph behind each decision. Nothing is hidden behind an email form: you get the verdict and the reasoning for free. The written report is for people who need the determination on paper.

Rules last reviewed September 2026. If HMRC's guidance changes, the logic here is updated and the review date moves with it.

This is guidance, not advice. Edge cases — exceptional circumstances, international transport workers, deceased persons, treaty tie-breakers — need a qualified adviser.