Are You Liable To Pay Tax On Crypto Mining In UK

The UK's tax classification of cryptocurrency mining is determined by whether it is regarded as a business or a hobby.

Cryptocurrency mining is verifying and adding new blocks of transactions to a blockchain. Miners are rewarded with cryptocurrency for their work. According to rules and regulations set by His Majesty Revenue and Customs (HMRC), you are liable to pay tax on crypto mining in the United Kingdom (UK) but it depends on whether the activities are considered a hobby or a business.

If the mining activities are considered a hobby, the miner must pay income tax on the cryptocurrency’s fair market value. However, they can deduct any reasonable expenses, such as the cost of electricity, from their income.

If the mining activities are considered a business, the miner will need to pay income tax on the profits they make from their mining activities after deducting any allowable expenses. They may also be liable to pay capital gains tax if they sell or trade the cryptocurrencies they mine.

What is Crypto Mining?

Crypto mining is leveraging computer hardware to solve challenging mathematical problems to validate cryptocurrency transactions and receive rewards. To encourage miners to join the network, the incentives are often brand-new cryptocurrency tokens the network produces.

Tax On Crypto Mining In UK

You are liable to pay tax on crypto mining in the UK. Whether cryptocurrency mining is seen as a hobby or a company will determine how HMRC will tax it

Hobby mining

If mining is regarded as a hobby, the rewards are taxed as other income. Accordingly, the benefits are included in your taxable income and are subject to tax at your marginal income tax rate.

Business mining

Mining deemed a company is taxed as trade revenue when the rewards are received. It indicates that income tax and national insurance contributions are due on the prizes.

Guidelines To Distinguish Between Business Mining And HobbyMining

It can be challenging to distinguish between mining for fun and profit. However, HMRC will consider a few things while making its decision. These elements consist of the following:

  • The time and energy you devote to mining.
  • The depth of your mining knowledge.
  • How much cash you have put towards mining.
  • If the objective of mining is financial gain.

If you mine as a hobby, you must add the value of the incentives you earned to your other sources of income to determine your taxable income. In such cases,  marginal income tax rate will be applied.

Determining Trading Revenue

To determine your trading revenue for business mining, you must subtract your costs from the value of the rewards you earned. Your trading income will subsequently be subject to your income tax rate and National Insurance contributions.

Once you receive the rewards from cryptocurrency mining, you are liable for paying taxes in the UK. This occurs on the day when the rewards are posted to your account or made available for withdrawal.

Speaking with a tax professional is crucial to determine how crypto mining will be taxed in your situation.

Some Key Considerations

  • The price of your mining machinery and other costs could be deductible from your taxable income.
  • You must keep track of every aspect of your cryptocurrency mining activity, including the dates you got rewards, their amounts in fiat currency, and the costs you expended.
  • To profit, you should establish a business and maintain thorough records of earnings and outgoings.
  • You may avoid fines and make sure you pay the right amount of taxes if you know the tax repercussions of crypto mining.

How To Calculate Tax On Crypto Mining In UK?

On tokens that are mined: Income tax is applicable

Taxable value = FMV (fair market value) of the tokens – Expenses incurred for mining

When tokens are disposed of (sold or swapped etc.): Capital Gain Tax is applicable

Taxable value= Sale value – Cost basis of the tokens sold.

Real-Life Scenarios

Suppose you mined 1 BTC in 2020. When you received this coin in your wallet, it was worth £9,000. You would report £9,000 as miscellaneous income. This also becomes the cost basis of this coin. If you were to sell this coin later for £10,000, you’d have a capital gain of £1,000 (£10,000 – £9,000).

For Example:

Mr. A is a Bitcoin miner. He mines by leaving his laptop running overnight, where it verifies transactions added to the blockchain. For his efforts, Mr. A received cryptocurrency worth £2,000 in the tax year.

His electricity costs increased significantly; he considers that £200 of the additional expense relates to his mining activities, giving a net return of £1,800. Mr. A had a profit motive, but his minimal training meant that his actions fell short of meeting the badges of trade. Therefore, his £1,800 profit is charged to tax as miscellaneous income and not as a financial trader.

Mr. A retains the Bitcoin he received, hoping it will increase in value. CGT will apply to any future increase in the value of Bitcoin.


The taxes of cryptocurrency mining and earnings in the UK is, thus, a complicated and dynamic issue. The tax treatment of mining depends on whether it is regarded as a hobby or a company, and people must disclose their revenue and costs appropriately. It is crucial to remain current on the most recent tax legislation to maintain compliance and prevent potential fines.

Struggling to understand the ins and outs of crypto taxation in the UK? At KoinX, our team of seasoned tax experts is ready to provide you with specialized guidance. If you need assistance managing your crypto assets and tackling tax complexities, reach out to us today!

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