You will need to pass the UK’s Life In the UK Test, as well as an English Language Test, at B1 Level (Speaking & Listening). In addition, you will need to show that you meet the residency requirements.

You will normally need to show that you have not spent extended periods of time outside the UK, even if this was unavoidable eg for work reasons. In some cases, discretion may be exercised due to compassionate reasons due to family or illness. Indefinite Leave is normally achieved by having spent periods of at least 5 continuous years in the UK if you are working, or as a Spouse or Partner.

You might qualify under the Long Residence requirements, if you have spent at least 10 consecutive years legally in the UK (other than as a Visitor) or at least 20 years in the UK under a combination of legal and illegal stay.

Finally, if you spend more than 2 consecutive years outside the UK after having being granted ILR, you will normally lose your ILR status, although you may be able to have it re-instated under the ‘Returning Resident’ Rules.