Heads up, it looks like the Home Office may have recently adopted a more narrow interpretation of who is allowed to use 4L. There are now two data points on Reddit in the last week where folks were denied 4L registration and instead registered under 4C or 4G even when they applied under 4L. The first link below even includes a response back from the case worker when the applicant pressed on why they were registered under 4C vs 4L (I have also quoted it here).

Reddit threads:

https://www.reddit.com/r/ukvisa/comm...ssed_under_4c/

https://www.reddit.com/r/ukvisa/comm...mment/nobcdaf/

Probably a measure to limit the number of Section 4L citizens, who are given citizenship otherwise than by descent and whose minor children born before registration are eligible to be registered.

The thing is, those covered by the Romein ruling, for example, were in fact prevented from becoming citizens due to historical legislative unfairness, hence the court ruling. Technically, I think they qualify under Section 4L, but they were also allowed to use Section 4C/form UKM. However, if the reply was directed at a person covered by the Romein principle, it kind of makes it sound as though they weren’t, or maybe I’m missing something.

I wonder what BritInParis thinks of this.

I agree I am pretty sure this is to cut back on minor children who would not normally be entitled to British citizenship getting it. Neither of the folks who were assessed under alternative sections were covered by the Romein ruling (one born to a British mother before 1983 and the other born to an unmarried British father before 2006). There was a comment from a third person who didn't give a lot of detail but implied he was subject to Romein and he was asked by Home Office to provide further proof that he didn't have an alternative path to British citizenship.

It looks increasingly likely that the broad language of Section 4L, intended to be a final 'catch-all' solution to historical legislative unfairness, has produced some unintended consequences, resulting from the fact that it does double duty with previous clauses, most notably 4C, that only give British citizenship by descent, not otherwise than by descent like Section 4L.

I've never known a situation where a nationality application was made on one prescribed form for registration under a particular section and the Home Office unilaterally decided to register the applicant under the provisions of another. If the application is valid for registration under Section 4L then it should be approved or refused on that basis. I suspect the Home Office knows it cannot refuse a Section 4L application where the individual qualifies under another section and therefore it has come up with this 'workaround' from their perspective, but ultimately policy does not trump primary legislation. Someone just needs to send a pre-action protocol letter to the Home Office to see whether they can get their particular decision reviewed which hopefully then leads to a change in the policy. If not then it needs to be taken to judicial review.

Thanks for the insight. I doesn't impact me because I just did a straight 4C application (only child turned 18 just before 4L became a thing and not having more) but it will likely impact my sister's app and I am pretty sure she'll pursue if she has too. Also a third data point today in one of those threads where somebody applied under 4L and was approved under 4C.

I think you might be talking about me. My brother is bbianco on this forum. He has posted on some treads about is 4L application which was approved. He had his Citizenship Ceremony on June 12th 2025.

My 4L route

My maternal grandmother was born in Sept 22nd1926 in the UK (Manchester specifically)
My maternal grandmother married my grandfather (US Citizen) on June 22nd 1946 in Manchester England
My mother was born in the United States on Sept 6th 1949
I was born April 14th1979 in the United States

I was asked by the Home Office on Nov 4th for birth certificate for both my paternal and maternal grandfathers. They were both born in the USA. My parrents marriage certificate did not have my grandparent country of birth. I was lucky that my brother had a scan of my maternal grandfathers and my dad had a copy of my paternal grandfathers birth certificate. This allowed me to email the documents to the Home office the following day Nov 5th. Below is part of the message I reveived.


The email also said if this application is successful, the certificate of British Citizenship will show the following details: Followed by my personal information.

Hi again, BritInParis and others:

This has happened to a friend as well today and we are almost certainly going to do a strong PAP/reconsideration letter.
Would it help to bring a few people together (i.e. from this forum) or are these adjudicated independently / separately? Is there anything we should be aware of when in discussions with the nationality lawyer?

How would you square away the apparent contradiction in the two sentences of this guidance? "This provision is not intended to be an alternative to meeting the requirements for naturalisation or registration under another route. You can be registered if you can show that you did not become, or were not able to become, a British citizen as a direct result of historical legislative unfairness, an act or omission of a public body, or exceptional circumstances relating to you."

To be clear: under the same facts and circumstances your brother received a 4L citizenship certificate but you are being forced into 4C? I would definitely raise an issue about this… (possibly jointly, you + my friend + others)

Thanks!!

My only path was 4L so I have been approved under 4L. The home office asked me for more information to make sure I did not have another path.

You would need to act as an individual but it could act as a precedent which would ultimately assist others. A prima facie reading of the legislation shows eligibility to be registered under either section but the Home Office will likely argue that their policy reflects parliamentary intent for Section 4L to be a 'mop-up' category rather than an alternative to existing registration routes. A good nationality lawyer should be able to question this as my own cursory glance at Hansard regarding the Nationality and Borders Act 2022, which added Section 4L to the British Nationality Act 1981, shows very little, if any, discussion of this topic.

As previously mentioned, policy does not trump legislation. The Home Office would need to show that their policy does not contradict the legislation rather than the other way around.

Hello again, BIP:

A close friend is going through the PAP/JR process on this topic of dual 4C/4G and 4L eligibility and we wanted to see if we could add anything that might be of help to others. If there is anything you (or jmin?) could add to the argument that would show that a) 4L is not a mop-up category and b) the Home Office has less discretion on 4L than they say, that would be very helpful. My understanding of 4L is that the Home Office's discretion is confined to the analysis of the 4L counterfactual ("would have become" / "would have been able to become"), the "but for" test (under the 2025 APD case), and good character. Once all three limbs are satisfied, the Home Office has virtually no residual discretion to refuse registration.

Another issue may arise that they could refuse Form MN1/section 3(1) registration of the children of a 4L registrant who was dual eligible under 4C/4G, by citing "discretion" -- am I reading that correctly / is that an actual risk?

I’m trying to understand how section 4L is currently being applied in post-1988 birth cases. Has anyone seen an actual decision (approval or refusal) involving an applicant born after 1988 where the parent later registered (2003 )under section 4C, the registration occurred while the applicant was still a minor, and there was no UK residence history? I’m particularly interested in whether minority overlap has been treated as legally significant in practice. Any real case outcomes would be really helpful.

What would be your 4L argument in this scenario? Most of the 4L arguments you see here are those based on consular registration path where it was possible for the second generation born outside the UK to be registered as British citizens by descent. That ended after 1987. British Nationality law since BNA 1981 came into effect has largely attempted to limit the transmission of British nationality to the first generation born outside the UK (outside of a five year transition period). So based on what little you posted I just don't see a path for you. In fact I suspect the recent push back from the Home Office on 4L registrations is likely related to trying to enforce the one generation limit to the degree possible.

To answer your question though, I spent a lot of time researching 4L approvals for adults when the parent was registered under 4L (without the necessary UK residency for parent or child) and I would have likely come across the 4C scenario as well. I found zero reports of anybody trying and reporting the results either positive or negative. I did see several reports of folks claiming they were going to try but they never reported back. If you have a British born grandparent and are from a commonwealth country an ancestry visa may be an option for you.

I’m trying to understand how 4L is actually being applied in post-1988 cases.My situation briefly:
UK-born grandmother (1935).
Father born abroad (1961).Father registered under 4C in 2003.
I was born in 1995 and was still a minor when he registered.Family never lived in the UK. Turkey is not Commonwealth, so no ancestry route.
I know the usual response is “3(2) or 3(5) residence requirement”. We don’t meet that.What I’m trying to clarify is this: does the Home Office completely filter these cases through 3(2)/3(5), or does the minority overlap matter at all under 4L?In other words, if part of your minority passed before your parent’s status was recognised under 4C, is that ever treated as a continuing effect of the historical unfairness — or is that argument simply rejected because there was no actual residence in the UK?I’m not arguing automatic citizenship. I’m trying to understand how narrowly 4L is currently being interpreted in practice.So i am asking has anyone seen a real post-1988 case with a 4C parent where the applicant was still a minor at the time of the parent’s registration?

4C confers citizenship by decent so unless you actually meet the requirement of 3(2) or 3(5) I do not believe there is a path for you. Your minority at the time your dad acquired citizenship doesn't matter because he couldn't pass on his citizenship to you without actually meeting the requirements of 3(2) or 3(5) since he was a citizen by descent. Example 10 in the form ARD guidance (how you go about making a 4L claim) addresses your situation: https://www.gov.uk/government/public...ard-accessible .

If he had used the 4L path (which only became available in mid-2022) he could have registered you while you were minor since he would have acquired British citizenship other than by descent.

Section 3(2) was not available in practice because the historical legislative unfairness meant the necessary legal capacity never arose in the first place.
The question, as I see it, is whether Section 4L is wide enough to address that situation — or whether it is limited only to cases of automatic acquisition.