Can ILR be exempted after leaving the country for 180 days? Business trips do not count, and cases of serious illness of relatives are handled on a case-by-case basis.

打开 GOV.UK 上的 Immigration Rules Appendix Continuous Residence，往下翻到 CR 2.3，这一条在屏幕上只占半页。一句引导语，底下三个带括号小写字母的小项，(a)(b)(c)，加起来不到一百个英文单词。这部附录管着 Skilled Worker、Global Talent、BN(O)、Appendix Long Residence 等一批通向永居的路线，五年或十年里每一天算不算数，都从它这里出。而"哪一类离境的天数可以不计入"，全部内容就是那三行。

出差不在里面。

因公出差为什么进不了 CR 2.3 那三行

先把底子摆清楚。Appendix Continuous Residence 下的上限是任何一个 12 个月区间内离境不超过 180 天，2024 年 4 月 11 日起用的是滚动窗口（any 12 month period），不是签证年度，也不是自然年。同一趟行程会同时落进好几个窗口里被数好几遍，这是很多人自己算出来"没超"、递上去却超了的原因。

Beyond this upper limit, CR 2.3 specifies situations that can be excluded, as follows: 👇

(There is an exception in Skilled Worker: research activities approved by the sponsor, and the position must fall within the few occupational codes listed in the guidelines, such as chemists, biologists and biochemists, physicists, research and development managers, and higher education teaching staff. General industry business trips cannot apply for this.)

This list is closed-ended, without any catch-all statements such as "or other similar reasons" at the end. Therefore, the dispatch letter issued by the employer, the stamped overseas assignment contract, and the project initiation documents can prove why you were sent, but they cannot change whether those days should be counted. When adjudicators review such materials, they confirm that it does not fall under any of the three items in CR 2.3, and then count the days as they are.

My judgment is: during the stage within two years of completing five years, work permit holders should not accept any overseas assignment lasting more than six weeks at a time, and it's better to let go of such opportunities. The reason is straightforward: promotions and salary increases can wait for another round, but breaking the five-year residency period requires starting over, costing two or three years of life arrangements. If you really have to take it, include in the supplementary agreement the clause that "the number of overseas working days per 12 months does not exceed X days," instead of waiting for HR to provide an explanatory letter afterwards.

Not sure whether your assignments abroad have crossed the line, you can pay £5 at justiscript.com to get a written response from a British practicing lawyer on this issue, which is more reliable than comparing cases with others on forums.

This item about serious illness states "life-threatening"

Guidance The original text is written as:

compelling and compassionate personal circumstances, such as the life-threatening illness of the applicant, or the life-threatening illness or death of a close family member.

Two words need to be focused on. One is "life-threatening," which means life-threatening, not "sick" or "needing care." Parents undergoing a surgery that requires bed rest for three months, elderly people who are old and have mobility issues needing care, or long-term treatment for chronic diseases—these are not necessarily included in the wording of the article. The other is "such as," indicating that this is an example, not an exhaustive list. Judges have discretion in judgment, but the examples given set the threshold at that level.

The scope of "close family member" is broader than most people think: parents, partners, children, grandparents, siblings, step-parents, as well as aunts, uncles, cousins, and grandchildren. Cousins, friends, and distant relatives of the partner are not included.

The guidelines for such situations require that the situation is credible, well-supported by evidence, beyond your control, and a response to an emergency. Reading it in reverse means that a six-month planned return visit home, even if the elderly person actually becomes critically ill during the stay, would be difficult to be recognized as "a response to an emergency." The adjudicator expects to see a letter clearly explaining the background, accompanied by medical certificates or records, which can demonstrate that you were indeed unable to return to the UK during that period.

If such an incident really happens, the days you are in the country are the best time to collect evidence: hospital records, diagnosis certificates, critical illness notices, death certificates, original return flight tickets and change records. At that time, getting them was just a matter of minutes. Four years later, trying to get them from the hospital again is completely another level of difficulty. Keep an electronic copy of these documents together with your entry and exit records.

同一件事，入籍那边的算法不一样

圈子里流传一个说法：因公出差造成的超标可以宽免，内政部会考虑工作性质。这句话不是凭空来的，它错在被搬错了地方。入籍的审案指引里确实写了裁量情形，包括"超标缺席是申请人职业性质的必然结果"，并且举了商船海员、在英国的跨国公司任职需频繁出国这样的例子，另外还有随英籍配偶外派、Crown service 派驻等情形。但那是 British Nationality Act 1981 附表一项下的裁量，管的是五年 450 天、末年 90 天那两条线。Appendix Continuous Residence 里没有任何一条与之对应的职业性裁量条款。永居和入籍在这件事上是两套规则，不能互相借。

还有一个容易被漏掉的点，对走十年长居的人反而是好消息：CR 2.3 那三类豁免，同样适用于 Appendix Long Residence 下 2024 年 4 月 11 日之前那段时间的计算。也就是说，判断那一段的累计 548 天、以及单次是否超过 184 天时，因近亲属病危或死亡产生的天数一样可以扣掉。这一点写在现行《Continuous residence》审案指引里，实务中常被当成只对 180 天新规生效。

落到动作上，三件事：把每一次出入境按日记进自己的台账，别等递交前翻护照倒推；出差与外派在事前谈，不在事后解释；突发的病危与丧事，当场把证据收齐，写一份两百字的事由说明和材料一起存档。

📌 This article is for reference only. For specific issues, please consult a licensed attorney.

Just want to ask: Before arranging your overseas project, did your company ask you how many months are left before you can obtain permanent residency? Please leave a comment in the comments section and tell us how it's handled there.

[Data Source] Immigration Rules Appendix Continuous Residence (gov.uk/guidance/immigration-rules/immigration-rules-appendix-continuous-residence); Home Office "Continuous residence" caseworker guidance (gov.uk/government/publications/continuous-residence)

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