Last reviewed: 26 June 2026.
Of all the requirements for a UK Spouse Visa, the relationship requirement is the one couples worry about most, because a real relationship still has to be proved on paper. The rule is that the relationship must be genuine and subsisting, and the couple must intend to live together permanently in the UK. The evidence for this is not a fixed checklist but a body of documents that, taken together, show a real and continuing relationship. An application that relies too heavily on one type of evidence may be refused as not genuine and subsisting. This post provides an overview of proof of relationship documents for a UK Spouse Visa.
What relationship must be proved for a UK Spouse Visa?
The relationship that must be proved is a genuine and subsisting relationship, together with an intention to live together permanently in the UK. This requirement is set out at paragraph E-ECP.2.6 of Appendix FM of the Immigration Rules, which applies to spouses and civil partners. An unmarried partner must additionally show that the couple have been in a relationship akin to marriage for at least two years, under the definition at paragraph GEN.1.2.
The evidence is assessed as a whole, so breadth across categories matters more than the sheer volume of any one type. Documents issued by government bodies, banks and other regulated institutions carry particular weight, because they are independently dated and difficult to create after the event. The aim is a rounded picture rather than a single decisive document.
What is the role of the marriage or civil partnership certificate?
The marriage or civil partnership certificate is the starting document for a spouse or civil partner application, because it establishes the legal relationship. It should be an official certificate issued by the relevant authority, and where it is not in English or Welsh, a certified translation is required under the specified-evidence rules.
A marriage that took place overseas must be legally valid in the country where it was conducted in order to be recognised. A religious ceremony that was not also registered as a civil marriage may not be sufficient on its own. Confirming the legal status of the marriage before applying avoids a question over whether the parties are validly married for the purpose of the rules.
How is cohabitation evidenced?
Cohabitation is evidenced through documents addressed to each partner at the same address, spread across a period of time. The purpose is to show two people sharing a home and a life, rather than a single snapshot. Useful documents include a joint tenancy agreement or a mortgage in both names, council tax and utility bills, bank statements, and official correspondence addressed to each partner at the shared address.
Evidence that spans the relationship is stronger than evidence clustered into a single month. Including at least one document from a government or official source for each stage of the period gives the cohabitation evidence an independent backbone. The role of cohabitation in a partner application is examined further in the guide on whether a couple need to live together for a Spouse Visa.
How is financial interdependence shown?
Financial interdependence is shown through evidence that the couple’s finances are connected, which supports the genuineness of the relationship. This can include a joint bank account, shared bills, transfers between the partners, and joint financial commitments such as a tenancy or a loan. Money sent to support a partner during a period spent apart serves the same purpose.
Couples who keep their finances separate are not disadvantaged, provided the connection is shown in another way. Regular transfers between accounts, shared subscriptions, and evidence of joint spending all demonstrate financial interdependence without a joint account. The point is to evidence a shared financial life in whatever form the couple’s circumstances take.
How are communication and time spent together evidenced?
Communication and time spent together are evidenced through a reasonable selection of messages, call logs, photographs and travel records across the relationship. This category is particularly important where the couple have spent periods apart, because it shows the relationship continuing over distance. Photographs together at different times and places, and travel evidence such as flight bookings and passport stamps, support the picture of a maintained relationship.
The aim is a representative selection rather than a complete archive. A curated set of evidence that shows continuity over time is more useful to a decision-maker than thousands of undated pages. For couples who have not yet lived together, this category carries more weight, alongside evidence of the plan to live together in the UK.
Are WhatsApp messages enough to prove a relationship?
WhatsApp messages are useful evidence of ongoing contact, but they are not enough on their own to prove a genuine and subsisting relationship. They form part of the communication category, and they are most valuable where the couple have spent time apart and need to show that the relationship continued. A common misunderstanding is that a large volume of messages will, by itself, satisfy the relationship requirement.
The relationship is assessed across categories, and messages address only one of them. A strong application places a curated selection of messages alongside cohabitation, financial, and other evidence, rather than relying on the messages to carry the whole case. The selection should show continuity over time and identify both parties, rather than consist of a single recent burst of contact. Quality and spread matter more than quantity, and a focused sample supported by other categories is stronger than a vast export of chat history standing alone. The wider evidence expected on the unmarried route is examined in the guide on unmarried partner visa evidence.
What evidence supports future plans and children?
Evidence of future plans shows that the couple intend to live together permanently in the UK, which is part of the relationship requirement. This can include the accommodation the couple will share, and a personal statement from each partner describing how the relationship developed and what the couple intend. A short, honest statement often explains a timeline that the documents alone do not fully convey.
Where the couple have children together, the children’s birth certificates naming both parents are strong evidence of the relationship. Evidence of shared parenting, such as correspondence from schools or healthcare providers addressed to both parents, reinforces this. These documents tie the relationship to a shared family life that is difficult to construct after the event.
What about supporting statements and previous relationships?
Supporting statements from family and friends can corroborate that a relationship is genuine, but they support the documentary evidence rather than replace it. A useful declaration names the person, explains their connection to the couple, and describes their direct knowledge of the relationship. Because these carry less weight than official records, they are best used to add context.
Where either partner was previously married or in a civil partnership, the application must show that the earlier relationship has legally ended. This is usually a decree absolute or final order, an annulment, or a death certificate. Including this evidence avoids a query over whether the parties are free to marry or to be treated as partners. Documents not in English or Welsh require a certified translation.
Frequently asked questions
There is no fixed number, because the evidence is assessed as a whole. A strong application usually draws on several categories, including cohabitation, financial, communication and future-plans evidence, spread across the relationship. Breadth across categories matters more than the total count of documents.
No. WhatsApp messages help to show ongoing contact, particularly across periods apart, but they form only one category of evidence. The relationship is assessed across categories, so messages should sit alongside cohabitation, financial and other evidence. A curated selection that shows continuity over time is more persuasive than a large undated export.
A married couple or civil partners can apply without having lived together, but must still show the relationship is genuine and that they intend to live together in the UK. Communication evidence, time spent together and future plans carry more weight in these applications. An unmarried partner must show two years of a relationship akin to marriage.
Any document not in English or Welsh must be accompanied by a certified translation. The translation must confirm that it is accurate, and must show the date and the translator’s credentials. This applies to marriage certificates, bank statements and any other supporting document.
They can add helpful context about how a relationship developed, but they support rather than replace documentary evidence. An application should not rely on them in place of official and financial records. They are best used to corroborate the documentary picture, not to carry it.
How Whytecroft Ford can help
The relationship requirement causes more anxiety than almost any other part of a spouse application, particularly for couples who have spent time apart, who keep separate finances, or whose evidence sits across different countries and languages. The concern is rarely that the relationship is not genuine. It is whether the documents present it convincingly, and that concern tends to grow as the deadline approaches.
The Whytecroft Ford immigration team advises applicants on building a relationship evidence pack across the family visa routes, including the Spouse Visa and the unmarried partner route. The team works through how to organise evidence by category, how to handle gaps in cohabitation, and how to evidence a relationship maintained over distance. This is particularly valuable for the couple who have lived apart and worry that messages and visits will not be enough on their own. To discuss your relationship evidence with our team, call 0208 757 5751 or use the contact form.
Sources
- Immigration Rules Appendix FM: family members (GOV.UK)
- Relationship with a partner: caseworker guidance (GOV.UK)
The material in this article is provided for guidance and general information only and is not intended to constitute legal or other professional advice on your circumstances upon which you should rely. In particular, the information should not be used as a substitute for a full and proper consultation with a suitably qualified professional. UK Immigration Rules are subject to change. Please do contact the Whytecroft Ford team if you require further advice.
