Do you pay tax ?

Not really. Where I live, we never had income tax except for the last 94 years. In fact, things got worse after income tax. We used to be #1 economic superpower

 

I think you couldn't catch the sarcasm in my post.

I will never pay any taxes even if they throw me in jail. I don't go around paying the Government which is ready to kiss foreign a**es but can't treat me as a citizen with equal rights. There are lawmakers who never used email in their whole lives! Heck! Email is too far, some don't know even to read!

 

How would one go about declaring this income in the UK?

 

Call your local tax office and they'll talk you through it

 

The tax laws vary from country to country.
To get the right advice for your situation you should see an accountant.