The UK unmarried partner visa is for those couples who are not married or in a civil partnership, but who are in a serious relationship, similar to marriage or civil partnership, and have been for at least 2-years prior to the application date.
It is not required for the couple to be married or in a civil-partnership, and nor is it required for the couple to intend to marry. Recent rules changes set out in December 2023, dropped references to 'cohabitation' in the wording of the Immigration Rules. However in most cases, UK Visas and Immigration (UKVI) will still expect to see at least some cohabitation evidence, unless there are compelling reasons why this cannot be provided.
The remainder of the requirements for the unmarried partner visa are the same as for a spouse visa, including the financial requirements.
You can find a more detailed explanation of the differences and considerations when choosing between the spouse, fiancé, unmarried partner, and marriage-visit visas, here: UK Family visas - What's the difference between them? (owlandsnake.co.uk)
The financial requirement is the most complex part of the application, and also the most important. It can be met in various different ways, so it's difficult to summarize in a just a few bullet points. But by way of an overview:
If you need help with an application, please contact us and we would be happy to help.