HMRC Admin 19 Response

Hi,
As it is UK property, this is taxed here. You can see guidance here:
Tell HMRC about Capital Gains Tax on UK property or land if you’re not a UK resident
Thank you.

Hi,
There is no reason why a minor cannot have a personal tax account. You will need to contact our online support team for advice on log on issues. 
Technical support with HMRC online services
Thank you.

Hi,
This would then be seen as benefit in kind and taxable. You can see guidance here: 
Expenses and benefits: medical or dental treatment and insurance
Thank you.

Hi,
You can see guidance regarding capital gains and leases here: 
HS292 Capital Gains Tax, land and leases (2024)
Thank you.

Hi,
You will need to contact our Self Assessment team to progress chase this.
Self Assessment: general enquiries
Thank you.

Hi,
You can see guidance here:
CG13137 - occasions of charge: assets lost/destroyed/negligible value: Buildings and Structures
Thank you

Hi,
You can see guidance here:
CRYPTO22200 - Cryptoassets for individuals: Capital Gains Tax: pooling
Thank you.

Hi,
If you are earning over £1000, then yes. You can see guidance here:
What a sole trader is
Thank you.

Hi,
You can see guidance here:
HS286 Negligible value claims and Income Tax losses on disposals of shares you have subscribed for in qualifying trading companies (2024)
Thank you.

Hi,
This payment is actually treated as capital gains as it would be seen as a further sale. You can see the guidance here:
ERSM110940 - Securities Options: earn-outs: key indicators of earn-out being sale consideration
Thank you.