Is there any limit on earnings to be economically active?

Now I understand that one should be financially active (i.e. doing job or self employed). Is there any limit on earnings (i..e >20K etc).

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I am nearly completing my 4 years on workpermit and now want to switch to Tier 1 (General). I have two questions if anybody could please help me. 1. Will my 4 years of workpermit and one year of Tier 1 will contribute towards 5 years requirements for ILR. 2. If I do not have a job in my last year/5t...

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