CryptoTax UK · Guide
Avalanche (AVAX) Tax UK — HMRC Guide for 2025/26
Avalanche is a high-throughput blockchain with a large DeFi ecosystem. This guide covers UK tax on AVAX disposals, staking and DeFi activity. Educational only — not tax advice.
Calculate my AVAX tax →CGT on AVAX disposals
Selling AVAX for fiat or stablecoins, swapping AVAX for another token, and spending AVAX are all CGT disposal events. The same-day rule, 30-day B&B rule and Section 104 pooling apply.
AVAX staking rewards
AVAX staking rewards received from running a validator or delegating to one may be treated as miscellaneous income in the year received at the GBP value on the date of receipt.
Avalanche DeFi
Token swaps on Avalanche DEXs, providing liquidity, and receiving farming rewards all create potential CGT or income events. Keep detailed records of all DeFi activity.
Frequently asked questions
Are AVAX subnet transactions taxable?
Transactions on Avalanche subnets that involve the disposal of a crypto asset are still subject to UK CGT rules. The chain or subnet you use does not change your UK tax obligations.
More UK crypto-tax guides
Educational guidance only. CryptoTax UK is not a regulated tax adviser and the information above does not constitute tax, legal or financial advice. Always confirm your specific position with HMRC or a qualified accountant before filing.