Appendix FM of the UK Immigration Rules sets out how British citizens and settled persons can sponsor their partner to live with them in the UK.
Under Appendix FM, a “partner” can be:
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A spouse
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A civil partner
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A fiancé(e)
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A proposed civil partner
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An unmarried partner who has been in a relationship similar to marriage or civil partnership for at least two years before the date of application
Each category has specific legal requirements that must be carefully met.
1. Validity of a marriage for a UK spouse visa
To apply as a spouse, the marriage must be legally valid.
If the marriage took place in the UK, it must be supported by a valid marriage certificate recognised under the laws of England and Wales, Scotland or Northern Ireland.
If the marriage took place outside the UK, the Home Office will recognise it provided that:
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The ceremony is recognised as legally valid in the country where it occurred
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The marriage was properly registered
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Both parties had legal capacity to marry
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Any previous marriages were lawfully terminated
This can include religious marriages and, in certain circumstances, proxy marriages, provided they meet legal recognition requirements.
If either partner was previously married or in a civil partnership, official divorce or dissolution documents must be submitted.
Where a British or settled person is in a polygamous marriage, they may sponsor only one partner under Appendix FM.
2. Validity of a civil partnership for a UK civil partner visa
A UK civil partnership must be evidenced by a valid civil partnership certificate.
Originally introduced for same-sex couples, civil partnerships are now available to both same-sex and opposite-sex couples in the UK. Many other countries also recognise equivalent legal relationships.
Certain overseas relationships listed under the Civil Partnership Act 2004 are recognised as civil partnerships for UK immigration purposes.
If either party was previously in a civil partnership, it must have been legally dissolved and evidence of dissolution must be provided.
3. Requirements for a UK Fiancé(e) or Proposed civil partner visa
If you are applying as a fiancé(e) or proposed civil partner, you must show that:
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You intend to marry or enter into a civil partnership within six months of arriving in the UK
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Neither party is married to, or in a civil partnership with, another person at the time of application
You must also provide evidence of genuine plans to marry, such as:
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Correspondence with a registrar
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Venue bookings
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Wedding arrangements
This visa category does not lead directly to settlement. After marrying or entering into a civil partnership in the UK, you must apply to switch to a spouse or civil partner visa from within the UK.
4. Recognition of unmarried partners
You may qualify as an unmarried partner if you have been in a relationship similar to marriage or civil partnership for at least two years before the application date.
Important update: On 31 January 2024, the Immigration Rules were amended to remove the strict requirement for two years of cohabitation. The rule now focuses on whether the relationship has existed in a marriage-like form for at least two years.
While living together is no longer mandatory, cohabitation remains strong supporting evidence. Helpful documents can include:
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Joint tenancy agreements
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Utility bills in both names
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Official correspondence to the same address
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Evidence of shared financial responsibilities
In some cases, a person who is not yet legally divorced may still qualify as an unmarried partner if they can demonstrate that their previous relationship has permanently broken down and they are no longer living together as a couple.
5. Proving a genuine and subsisting relationship
All partner routes under Appendix FM require proof that the relationship is genuine and ongoing.
The Home Office will refuse applications where it believes the relationship is a “sham” or entered into solely for immigration purposes.
In addition to relationship requirements, applicants must also meet:
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Financial requirements
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Adequate accommodation requirements
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English language requirements
Failure to properly evidence any of these areas can result in refusal.
How LawSentis can help
At LawSentis, we provide UK immigration and relocation services. As a UK-based firm regulated by the Immigration Advice Authority (IAA) at Level 3, we specialise in complex family and partner visa applications under Appendix FM.
We can assist you with:
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Assessing whether you qualify as a spouse, civil partner, fiancé(e), or unmarried partner
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Reviewing the validity of overseas marriages and civil partnerships
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Advising on genuine relationship evidence
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Preparing strong financial and accommodation documentation
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Handling complex cases involving previous marriages or separation issues
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Preparing and submitting your application professionally to minimise the risk of refusal
Partner visa applications are document-heavy and strictly assessed. Even small errors can lead to costly refusals or delays.
If you are planning to apply for a UK partner visa, contact LawSentis today for expert advice and tailored support. Our experienced team will guide you through every stage of the process and help you build a strong, compliant application.