How is continuous residence calculated as permanent residence in the UK? 180-day red line and stall recalculation

Last week, a reader sent a message with a very urgent tone: She had been a Skilled Worker for five years and had all the materials ready. After calculating the number of days she left the country, she discovered that she returned to China to take care of her father for 95 days from March to June 2024, and left for another 92 days from October to December of the same year. Her understanding is "less than 180 days in each of the two years, no problem."

The problem is, that's not how the Home Office counts it.

Continuous residence is the most easily miscalculated and least negotiable item in the permanent residence application. If you fail the language test, you can retake it, and if you have missing materials, you can make up for them. But once you cross the line, in many cases it will be and start all over again . Let’s break down the rules and explain them clearly today.

1. How to calculate permanent residence in the UK continuously? The key is "rolling 12 months"

The current rules are written in the Appendix Continuous Residence (CR 2.1) of the "Immigration Rules": the applicant shall not be absent from the country for more than 180 days in any 12-month period of to .

"Any 12 months" - those five words are the source of all the controversy. It is not a calendar year (January 1 to December 31), but a window that can start on any day and slide back.

Back to the reader at the beginning: counting from March 2024 to February 2025, this window contains 95 + 92 = 187 days. More than 7 days. Although it spans two calendar years, it still falls within the same rolling 12 months.

The correct way to self-examine is to make a list of the dates of each entry and exit in five years (or ten years), and then imagine a 365-day ruler, starting from the first day and moving back day by day to see if there is any position where the number of departure days covered by the ruler exceeds 180.

Another detail that is often overlooked: When the Ministry of the Interior examines you, it will use the application date , any day within 28 days after application, or the decision date , whichever is most beneficial to you as the end point of the review. This means that sometimes "waiting two more weeks to submit" can allow an embarrassing window to slip out of the scope of inspection.

2. Number of days of permanent residence abroad: April 11, 2024 is a dividing line

Friends who take the 10-year Long Residence path should pay special attention to this date.

For the departure from the UK, if starts on on or after April 11, 2024, the 180-day rolling rule mentioned above applies. If that departure begins in before April 11, 2024, the old rules apply: a single consecutive departure cannot exceed 184 days, and the total number of days within a ten-year period cannot exceed 548 days.

Therefore, a person who started counting ten years in 2018 would use two sets of algorithms for the first half and the second half. Many situations that I consider to be a big deal are stuck here. Under the old rules, you might be safe for a total of 500 days, but under the new rules, if you only travel for 200 days in a certain year, it will be useless.

There is another group of people who often miscalculate: applicants who take the spouse/family route (Appendix FM system). This path does not mechanically apply the 180-day hard line. The focus of the review is whether Britain is still your permanent residence and whether the marital relationship continues to be true . People who have been abroad for a long time and only retain British identity in name will also not be able to pass the customs.

3. Under what circumstances will the continuous residence of permanent residence be directly terminated and recalculated?

Super days are just one of them. There are also several types of "hard breaks" listed in the rules. Once triggered, the timer will be reset:

1. There is a gap in the visa. This is the most frequent killer. From the day the old visa expires to the date when the new visa is approved, as long as you are not legally permitted, your continuous residence will be terminated. Common triggers: Thinking "I've already submitted it, so it's okay", but it turns out that the submission time is later than the expiration date of the old visa; or failure to remedy the situation in time after the renewal is rejected.

2. The visa expired while the person was abroad. rules require: you hold a valid permit when you leave the UK, and submit an application for entry clearance before or within 14 days after the expiration of the permit, and the application is approved. Otherwise it will be considered as a break. Many people return to visit relatives in China just in time for the expiration of their visas. They apply for the visa in a leisurely manner at home, only to find that the timer has cleared when they return.

3. Sentenced and imprisoned in the UK. was convicted and sentenced to imprisonment, and his continuous residence was in principle interrupted (there are specific treatments for sentences of less than 12 months under Settlement Family Life, Private Life and other paths, but the prison time itself is not counted).

4. Is issued a deportation order, exclusion order or exclusion order. In such cases as , continuous residence is directly interrupted.

There is another point that is easily overlooked: the period of overstaying in will never be counted as legal residence in . The Supreme Court made this very clear in 2023 in R (Afzal) [2023] UKSC 46 – even if your overdue period is “forgiven” and your subsequent application is approved, those days will not be counted towards the ten years. For those taking the ten-year path, these days may mean waiting a few more months to submit.

4. If you break it, you have to start over? Several exceptions to the permanent residence rules

Don't give up in a hurry, the rules leave a loophole.

Short-term overdue exemption for Paragraph 39E. If you submit a new application within 14 days after the expiration of the old visa, and there are legitimate reasons beyond your control (such as serious illness, hospitalization, death of an immediate family member, etc.), the gap will not be regarded as destroying continuous residence. Note: It is "not regarded as a break", but those days are still not counted as legal residence.

Exceptional departure allowed under rules. Appendix Continuous Residence will not count certain departures or handle them as appropriate. Typical examples include: necessary overseas time due to sponsored work or study, participation in responding to national or international humanitarian/environmental crises, serious illness of the person or close relatives, natural disasters, armed conflicts and other compulsory circumstances. Such claims must be supported by evidence - hospital letters, flight cancellation records, and employer assignment letters. Oral explanations alone are basically ineffective.

If you have already stepped on the line, the three most realistic paths are: first, restart the five-year period (many people do this, but it is just heartbreaking); second, evaluate whether you fall into the exception clause and prepare evidence to claim immunity; third, see if there is a possibility of changing the path (such as meeting ten years of Long Residence). How to choose these three items, it is worth spending some money to have a professional take a look - justiscript.com allows a practicing British lawyer to give a written reply to a specific question within 24 hours for justiscript.com, which is more reliable than asking ten people in the group.

5. People who have not yet reached the period of permanent residence should do three things now

creates an entry and exit ledger. writes down the date, destination and reason every time he enters or leaves the UK. Wait until the fifth year to check for passport stamps and ticket booking emails. If you miss it once, it may be a miscalculation. In the era of electronic signatures, many people don’t have stamps in their passports at all, and they have to keep their own stamps.

sets a "90-day warning line". Don’t think of 180 days as your goal and 120 days as your upper limit. The allowance is for emergencies—family matters, grounded flights, slow visa approvals, all of which will eat up days. By the 175th day, you will have no room to move.

renewal starts 8 weeks in advance. Almost all of ’s gap period came from “thinking it’s still too late”. Start preparing two months before the old visa expires. It's better to deliver it early than to get stuck.

It is easy to make mistakes by hand calculating the rolling window. You can use the 永居计算器 APP to record each entry and exit. It will automatically run through all 12-month windows, calculate the actuarial date, and mark the earliest submission date. Click the menu bar at the bottom of this official account to use it.

📌 This article is for reference only. The rules are subject to the latest announcement of GOV.UK. Please consult a licensed attorney for specific cases.

[Data source] Immigration Rules Appendix Continuous Residence (gov.uk/guidance/immigration-rules/immigration-rules-appendix-continuous-residence); Continuous residence caseworker guidance (gov.uk); Long residence: caseworker guidance (gov.uk, August 2026 edition)

💬 I would like to ask everyone: , how many days was the longest time you spent abroad in the past five years? What did you leave for? ’s comments in the comment section will also give those who are still counting the time an idea.

If you are counting the days by yourself, it is recommended to save this article first and then check it again when you really want to submit the materials.

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