A person is eligible to apply for a settlement visa or also known as indefinite leave to remain (ILR), once they have either completed 5 years or 10 years of continuous residency under each of the categories as listed on Appendix FM Immigration Rules HC395.
The Home Office announces “Statement of Changes” throughout the year, so you should familiarise yourself with any planned changes prior to making an application for indefinite leave to remain. Following the new Home Office digital system, one of the most common grounds of invalidation of an indefinite leave to remain application was the failure of using expired visa forms.
An application form are subject to changes and under the Immigration Act, an old visa form was only valid for 21 days following an introduction of the new visa form. However this is now not the case and you must choose to complete the correct application form as this would provide the Home Office your reasons to apply for indefinite leave to remain.
To read more information about Settlement Visa, Visit: https://www.icslegal.com/settlement-visa.php