Discover United Kingdom (UK) Crypto Tax

Discover United Kingdom (UK) Crypto Tax

Are you residing in the United Kingdom (UK)? Trading crypto? You might be liable for tax! However, the silver lining is that you are not alone in this – we can assist you with issues regarding tax compliance.

The HM Revenue and Customs (HMRC) was one of the first tax offices worldwide to seize the lucrative revenue opportunity that United Kingdom (UK) crypto tax may provide. The first distinction that traders should know is that crypto is taxed as an asset. Many traders succumb to the misconception that crypto should be taxed as a currency. Still, tax authorities view it differently and ultimately hold the deciding power in most jurisdictions.

The importance of disclosure

Some traders might be tempted to avoid disclosure of crypto activity due to doubts over tax authorities’ ability to track crypto transactions across a high number of exchange and wallet services. However, in the UK, this would constitute a false sense of security because HMRC has shown powerful intent to attain customer data from UK-based crypto exchanges.

In our opinion, this leaves crypto traders with no alternative but to be proactive in their tax compliance or risk an expensive and tedious process by being forced into retrospective compliance by the government.

How are crypto assets taxed?

In the UK, two types of crypto tax are applicable:

  1. Income tax
  2. Capital gains tax.

These taxes are levied on a range of realisation events as would be applicable on fixed property, shares, forex and collectables.

Income tax is applicable when you earn crypto, for instance, when you receive crypto as:

  1. remuneration,
  2. interest,
  3. or rewards. 

A trade between cryptos is seen by tax authorities as a pair of sell and buy transactions, for example, exchanging BTC for ETH or vice versa. However, contrary to popular belief, disposals are not only realised when converting crypto to fiat currencies. But in fact, any event where the stock of one crypto is decreased in exchange for anything in return constitutes a taxable disposal, with one or two exceptions in limited cases.

Spending or gifting crypto is also taxed if the market value of the crypto at disposal is more than its cost.

All these gains are determined using the difference between the cost base and the value at disposal.

So what is a cost base?

The cost base is the acquisition cost of an asset sold. For example, if you buy 5 ETH on one day and sell the full 5 ETH the next day for 5 000 GBP more, your cost base and gains are easy to calculate.

Now imagine a diverse portfolio of crypto assets across ten exchanges and wallets, with numerous trading pairs and various investment strategies. One can see how this quickly becomes very challenging to keep track of. The cost basis methods are specific guidelines for keeping track of trading stock costs. A variety of these methods exist, with every country stipulating its own rules in its jurisdiction. Commonly used methods include FIFO, LIFO, HIFO, and ACB. However, HMRC only allows one cost tracking method, which is the share pooling method.

Explaining the inventory tracking method

Share pooling allows three rules to be applied to calculate disposed assets’ cost basis.

  • The same-day rule – the same-day rule may apply to stock bought and sold on the same day. Once the amount sold exceeds the amount purchased, one employs the next rule.
  • The “bed and breakfasting rule” – the bed and breakfasting rule allows sales and purchases that occur in the same month to be based on the cost of coins purchased in the last 30 days. Once again, when selling more than what was bought during this period, one has to apply the next rule, which is called the section 104 rule.
  • The section 104 rule – this method should be used when none of the aforementioned rules applies – essentially, it functions like the Average Cost Base (ACB) method in that the cost basis is calculated by aggregating the total amount paid for all assets and dividing it by the total amount of coins or tokens held.

The rationale for using the share pooling method

The HMRC employs the share pooling inventory cost tracking method to disincentivise tax-loss harvesting practices that obscure gains and losses from the tax authorities. Does this inconvenience taxpayers? Probably. Do taxpayers have the liberty to substitute this method with another that gives preferential tax outcomes? Unfortunately not. Since we have established the only acceptable method to determine the cost bases of crypto assets in the UK, we can move on to how the actual gains are calculated.

Capital Gains Tax

The taxable gains are calculated by subtracting the cost basis from the total value of the disposal. Then, depending on whether the transaction type falls into the capital gain or income categories, each loss or gain will be added to the appropriate category. Finally, the aggregate gains will be taxed at the marginal tax rates, dependent on the taxpayer’s regular income.


Ryan bought 3 BTC in June 2019. It was worth £5,000 per coin when he acquired it, making it worth £15 000 in total. He paid an extra £200 in transaction fees. His cost basis is, therefore, £15 000+£200=£15200.

United Kingdom (UK) crypto tax

This is his capital gain, and he’ll pay Capital Gains Tax on this amount. To calculate how much tax he’ll pay, he needs to look at his regular income to determine which Capital Gains Tax band he falls into.

United Kingdom (UK) crypto tax

Income Tax

All crypto asset transactions that fall under the income category are taxed at one’s regular income tax band. Transaction types for which HMRC has issued specific guidance include remuneration in crypto, staking rewards, mining tokens and airdrops (in most instances).

Novel developments in the DeFi space are disrupting the traditional taxation frameworks in many jurisdictions, with income opportunities such as yield farming, earning new liquidity pool tokens, crypto lending with interest as compensation and crypto dividends inevitably also set to be classified as income. While guidance on the tax treatment of engage-to-earn and play-to-earn platforms is not clear yet, we believe there is a high likelihood that HMRC will also consider, and tax, inflows from these sources as income.

Non-taxable crypto activity

Exceptions to the taxability of crypto transactions do apply in a handful of instances:

You will not pay tax on crypto in the UK when buying crypto, holding crypto, transferring crypto between your own wallets, gifting crypto to your spouse or donating crypto to charity. A transaction fee exemption applies, but only when the transaction fee is fiat-denominated, which is typically not the case when crypto is being traded.

Addition and removal of liquidity to and from DeFi liquidity would not fall within the conventional scope of disposal events. However, many DeFi protocols are now issuing tokens in exchange for shares in liquidity pools. It will give rise to different views on disposal criteria and probably cause different tax implications. We are keeping a close eye on these developments.

The HMRC is fairly generous when it comes to forks in that coins received from forks are not taxed upon receipt. However, the cost of the crypto received is derived from the previous blockchain, so if you later dispose of coins received in a fork, you will not be able to use the coin’s fair market value on receipt as your cost basis.

Lastly, involuntary alienations of crypto stock through loss and theft are not considered disposals by HMRC. Therefore, they cannot be claimed as capital losses. There are a few exceptions to this rule, with the possibility of making a negligible value claim. Still, such claims are typically subject to very strict conditions that could be difficult to validate.


In summary, the HMRC is generally very clear on the tax implications of crypto activity. However, in our opinion, the best approach to ensure that you attain and maintain crypto tax compliance is to work with an experienced crypto accountant. In addition, ensure that your tax submissions are factually informed and optimised to the maximum possible extent within your legal and regulatory framework. If you would like to learn more about how we can help you with this process, please get in touch with us.

(Disclaimer: This does not constitute financial advice)


1 thought on “Discover United Kingdom (UK) Crypto Tax”

  1. I just had to show my appreciation for the writer’s point of view on this subject by leaving a comment. Thank you for writing such top notch content for your readers. a Thank you so much.

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