Taxation

HMRC Introduces New Cryptoasset Disclosure Box in 2024/25 Tax Return – What It Means for You

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As crypto adoption continues to grow in the UK, HMRC is tightening its focus on cryptoasset tax compliance. From the 2024/25 tax year onwards, the UK Self Assessment Tax Return will include a dedicated section for disclosing cryptoasset transactions — marking a significant shift in the way digital assets are reported. 

This change affects millions of taxpayers, especially as HMRC estimates that over 4 million people in the UK now hold cryptoassets. Whether you’re an investor, trader, or even someone who dabbled in crypto briefly, it’s important to understand what this means for your next tax return. 

What’s Changing? 

The main update is simple but powerful: 
From the 2024/25 tax year, taxpayers will see a new “Cryptoasset” question added to the Self Assessment form. This box will appear in four key pages

  • Capital Gains Summary (SA108) 
  • Self-employment (SA103) 
  • UK Property (SA105) 
  • Trusts 

If you’ve received or disposed of any cryptoassets during the tax year, you’ll need to tick this box and provide relevant information — including gains, losses, or income generated from those activities. 

HMRCs-New-Cryptoasset-Tax-Box-202425-%E2%80%93-What-UK-Crypto-Investors-Must-Know1 HMRC Introduces New Cryptoasset Disclosure Box in 2024/25 Tax Return – What It Means for You

What Counts as a Cryptoasset Transaction? 

HMRC defines cryptoassets broadly. You may be required to report if you’ve done any of the following: 

  • Swapped one token for another (e.g., ETH to USDT) 
  • Used crypto to buy goods or services 
  • Received crypto through staking, mining, or airdrops 
  • Earned income or interest through DeFi protocols 
  • Minted or sold NFTs 

Even if you made a loss or didn’t exceed your annual Capital Gains Tax (CGT) allowance, you may still need to report your crypto activity. 

Why Is HMRC Making This Change? 

The inclusion of a dedicated cryptoasset question is no coincidence. It’s part of HMRC’s broader strategy to: 

  • Raise awareness among taxpayers that crypto is taxable 
  • Increase compliance by prompting self-disclosure 
  • Identify gaps where taxpayers may not be reporting crypto income or gains 

This move follows international trends, including the OECD’s Crypto-Asset Reporting Framework (CARF), which encourages governments to enforce stricter reporting standards in the digital asset space. 

HMRCs-New-Cryptoasset-Tax-Box-202425-%E2%80%93-What-UK-Crypto-Investors-Must-Know1 HMRC Introduces New Cryptoasset Disclosure Box in 2024/25 Tax Return – What It Means for You

What You Should Do Now 

With the new cryptoasset disclosure coming into effect from 6 April 2024, it’s essential to be proactive: 

  1. Start Tracking Your Crypto Activity 
    Use a crypto tax tracking tool or spreadsheet to maintain detailed records of all transactions — dates, amounts, GBP value, wallet addresses, and platforms used. 
  1. Understand Your Tax Position 
    Depending on your activity, you may be subject to Capital Gains Tax or Income Tax. For example, selling crypto at a profit usually triggers CGT, while staking rewards may be classed as income. 
  1. Don’t Wait Until January 2026 
    While the tax return deadline is 31 January 2026, early filing gives you time to claim refunds or plan for any tax owed. If you’re due a refund, you can access it as soon as you file. 
  1. Get Specialist Advice 
    Crypto tax can get complex — especially with DeFi, NFTs, and token swaps. Working with a specialist accountant ensures full compliance and can help you avoid unexpected tax liabilities. 

Final Thoughts 

The introduction of a cryptoasset-specific box in the Self Assessment form is a clear message from HMRC: crypto is no longer under the radar

Whether you’re a seasoned investor or someone who just dabbled in crypto, the safest path is clear — stay informed, keep good records, and make sure your crypto taxes are handled correctly

If you need support or want to speak with a crypto tax expert, we’re here to help. At MyCryptoTax.co.uk, we specialise in helping UK investors, traders, and businesses stay compliant and tax-efficient in this fast-moving space.  

FAQ’s

Yes, HMRC still requires you to disclose your crypto transactions even if you didn’t exceed the Capital Gains Tax (CGT) allowance or made a loss. This helps HMRC maintain accurate records and monitor crypto activity.

Start by keeping detailed records of your crypto transactions — including dates, amounts, values in GBP, and platforms used. Use crypto tax tools or consult a crypto accountant to ensure full compliance and avoid penalties.

HMRCs-New-Cryptoasset-Tax-Box-202425-%E2%80%93-What-UK-Crypto-Investors-Must-Know1 HMRC Introduces New Cryptoasset Disclosure Box in 2024/25 Tax Return – What It Means for You