How to calculate the 180 days of permanent residence abroad? 3 steps until the sky is over

How to count the number of days of permanent residence abroad? The day of departure and return to the UK does not count

This is the second detail that can help you "save" several days, and it is also stated in black and white in the official guidelines: the day leaves the UK and the day he returns to the UK are not included in the number of days spent abroad. only counts the whole days in between.

Here’s an example to help you remember:

He flew out of London on January 1st and landed back in the UK on January 10th. The departure day (1st) of
does not count, and the return date (10th) does not count.
is really counted from the 2nd to the 9th, a total of 8 days , not 10 days or 9 days as many people think.

Don't underestimate this rule. If you go abroad more than a dozen times a year (it's common for people doing business and traveling to Europe), saving 2 days each time will make a difference of 20 to 30 days in a year, which is enough to determine whether you are "safe" or "stepping on the line." same-day round trip or itinerary of less than 24 hours will not be counted.

3 steps of actuarial calculation for permanent residence and departure: Calculate the day by yourself

There’s no need to wait until you apply. With these three steps, you can figure out your situation now.

Step one: List all entry and exit flows. lists the dates of departure and return to the UK in the past few years, one by one. The entry and exit stamps in your passport, air ticket itinerary, and e-Gate records can all help you recall. Even if it’s a short trip like returning home for Christmas or traveling during summer vacation, don’t miss it – it’s these small and fragmentary trips that are easiest to add up quietly in a rolling window.

Step 2: Count each trip individually as "the whole day in between". subtracts the departure day from the return date, and then subtracts 1, which is the actual number of departure days for this trip (the departure and return days are not counted). Remember each trip.

Step 3: Slide through each 12-month window. This step is the easiest to miscalculate. What you have to do is not to "add up each year", but to push forward 365 days from any day, add up all the outbound days that fall within this window, and see if there is any window > 180. It is easy to miss windows when doing it manually. It is recommended to use a table or directly use tools to calculate on a daily basis.

💡 This step is what the "永居计算器" APP will do automatically for you - enter each entry and exit section, and it will calculate the cumulative number of days in each rolling window, and which section will soon cross the red alert line. It is accurate to the day, which is much more reliable than hand calculation.

I accidentally stayed outside the country for more than 180 days, is there any help?

Don't despair yet. Exceeding the limit is indeed a common reason for visa refusal, but there is a window left in the rules: if exceeds the limit due to "serious or compelling reasons", Home Office has the discretion to approve it.

Situations that have been accepted in reality include: serious illness of yourself or a close relative, death of an immediate family member, medical treatment related to pregnancy and childbirth, and completely uncontrollable events such as epidemics, wars, and natural disasters. The key is - must have solid evidence: hospital letter, death certificate, flight cancellation record, etc., all are indispensable. Ordinary business trips, vacations, and family visits are generally not considered "compelling."

I would also like to remind you that the continuous residence rules for different visa pathways are not exactly the same (for example, some family categories and the 10-year long-term residence pathway are handled differently), and individual pathways such as Global Talent have looser exit restrictions. If you're not sure how to calculate your path, don't force yourself to guess.

Don’t wait until the night before you apply

The most fearful thing about the 180-day problem is "discovering it when you arrive." Once a certain window has been exceeded, time cannot be turned back. You can only passively wait for the next safe window to slide over, or gamble on discretion. The really safe way is to start keeping an eye on your departure account book one or two years in advance, and calculate whether the trip will hit the line when you come back before buying a ticket. Proactive management is always easier than remediation afterwards.

For those who have been waiting for four or five years, permanent residence is just a step away, and it is really not worth setting up a number that can be calculated clearly.

This article is for reference only and does not constitute legal advice; please consult a licensed immigration lawyer for specific cases, and the latest announcement of GOV.UK shall prevail.

[Data source] GOV.UK: Indefinite leave to remain — calculating continuous period in UK; Appendix Continuous Residence (Immigration Rules).

📌 Let’s chat in the comment area: Which 12-month window is your current outbound days closest to 180? Was it accumulated by short trips, or did a long stay eat up the allowance? Tell us about your situation and we will help you figure it out.

If you find it useful, collect this article . Before buying a ticket, turn it out and make a pair so that you can check it later.

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