After how many years can you get UK permanent residence (ILR)?
The time frame may vary.
The term is 5 years, if all visa requirements are met in full. This is especially true for financial issues, including adequate provision and the availability of adequate housing in the UK. You also need to have on hand documents and certificates proving the fact of living together throughout this period, a valid visa, a certificate of passing the Life in the UK test and the English language exam for level B1.
A period of 10 years when any visa requirement is not met due to exceptional circumstances. Most often, these are various material or financial “temporary difficulties” with the prospect of successful resolution in the future.
For example, the applicant cannot currently demonstrate the sources of income of the desired level, but he has or is projected to have another guaranteed income of the appropriate level in the near future. Confirmation can be a letter of sponsorship from a third party, cash receipts for a scientific grant, insurance for a realized insured event, or other evidence of guaranteed financial income of a spouse in the country after obtaining a visa.
In such circumstances (deferred guaranteed income), visa officers will take all the circumstances into account and make a decision accordingly.