Unmarried partners of a British citizen or of anyone with any type of long-term status in the UK
Since 1997 it has been possible for unmarried partners both in a heterosexual and same sex relationship to gain entry to the UK using an Unmarried Partners Visa. Applications tend to be more difficult than those based on marriage as you need to show that you have been together for two years and that it is a permanent relationship.
In order to qualify for this visa you must demonstrate that you have been living together for at least 2 years and provide documentary evidence confirming that you have been living together for this time. If you have been together for less than 4 years you are granted a visa for a probationary period of 2 years. Indefinite Leave to Remain (ILR) - permanent residency - may be applied for at the end of two years.
If you have been together for 4 years or more outside the UK and can provide documentary evidence to substantiate this claim, you may be granted ILR without having to live in the UK for two years.
Furthermore, you must demonstrate that you intend to live together permanently with your partner and that you possess sufficient funds to pay the couple’s living expenses and those of any dependants without claiming public funds. Overseas applicant’s must be at least 16 years old and the UK sponsor must be at least 18.
Children of the unmarried partners who are under 18 years old are allowed entry to the UK as dependants, and can make their application at the same time as the main applicant.
After a total period of five years in the UK if you meet the residence requirements you may then be eligible to apply for UK citizenship.