Adam

I am not sure this is correct. Where is the information that you must be self-employed to mine? On the HRMC phone service they told me that there is no need to open the company or to change anything. I can just work full time and as a hobby earn up to £1000 from mining. Over £1000 just do the self assessment and pay income tax from the amount above. Also no need to open the company to be self-employed.

This page: https://www.gov.uk/hmrc-internal-manuals/cryptoassets-manual/crypto21150 says "If the mining activity does not amount to a trade...will be taxable as income (miscellaneous income)...". In the first reply in this thread you said: "If this is not a trade... need to be reported for capital gains...". So my question is why that page says about 'income' and you says about 'capital gains' in therms of no trade? Which one is correct?

Also, when you said "if this is a taxable gain" did you mean by this "only the gain amount above £1000"? As I understand everything below a £1000 is tax free. Am I right?

What do you mean by referring to a 'trade'? Let's say I just use my personal PC a few hours a day from time to time for this. Is this a trade?

I am a regular person who just work full time and receive salary from my employer. My company fill all the tax documents for me and I've never had to do the self assessment. If I started mining crypto currency and it will be less than a £1000 in the tax year (for instance £400), would I still be able to continue to not do the self assessment? My understanding is that if the extra income from mining is less than a £1000, I don't need to report it. However I would like to know from the official source.