ILR

[smiles345]

do they [BIA] calculate WP period from the issue date or date of entry to the UK.

thanx in advance

[vinny]

After you have lived legally in the United Kingdom for a certain length of time (usually between two and five years), you may be able to apply to live here permanently, depending on the category of visa you have.

i.e. The qualifying period starts when you initially enter/switch in the UK in the relevant category. Moreover,

You must not send us your application more than 28 days before the end of your qualifying period. If you do, we may refuse your application with no refund of the fee. However, you must make your application before your current permission to stay in the United Kingdom expires.