United Kingdom day-count rules
UK residency rules are unusually layered: the Statutory Residence Test decides tax residency on a sliding day-count that depends on your ties; ILR and settled status each have their own presence and absence arithmetic; visitors get 180 days per visit; and naturalisation looks back at your absences over five years.
Each page below takes one UK day-count rule and explains it in plain English — thresholds, windows, and what counts as a day — with links to GOV.UK and HMRC official guidance.
Frequently asked questions
It depends on your ties. 183+ days in the UK tax year makes you resident automatically. Below that, the Statutory Residence Test scales the safe threshold by your UK ties (home, family, work, past residence) — for some people as few as 46 or even 16 days can tip the balance.
For pre-settled holders to qualify for settled status: at least 913 days (30 months) of UK presence within the most recent 60 months. Once you hold settled status, you keep it unless you stay outside the UK for 5 consecutive years (4 for Swiss nationals).
ILR's continuous-residence rule allows at most 180 days of absence in any rolling 12-month period of the qualifying years. Naturalisation then looks back 5 years: no more than 450 days absent in total, and no more than 90 in the final year.
Standard visitors can stay up to 6 months (180 days) per visit. There's no fixed annual quota like Schengen's 90/180, but frequent long visits invite questions at the border about whether you're genuinely visiting rather than living in the UK.