Staking
explained.

Proof-of-stake blockchains (Ethereum, Solana, Cardano, and many others) need validators to confirm transactions and secure the network. To become a validator, you must lock up — “stake” — a certain amount of the native cryptocurrency as collateral.

If you validate honestly, you earn rewards in the form of newly minted tokens. If you behave dishonestly or go offline for extended periods, a portion of your stake can be destroyed. This penalty is called “slashing.”

The system works because validators have financial skin in the game. Cheating costs more than playing fair. That economic design is what makes the network trustworthy without a central authority.

Through an exchange.The simplest route. Coinbase, Kraken, and others offer one-click staking. You keep your crypto on the exchange, they handle the validation, and you receive rewards minus a service fee (typically 10–25% of the yield). You do not need 32 ETH or any technical knowledge.

Through a liquid staking protocol. Services like Lido let you stake any amount of ETH and receive a liquid token (stETH) in return. That token represents your staked ETH and can be used in DeFi while your original ETH earns rewards. This requires a self-custody wallet and more technical confidence.

Solo staking.Running your own validator node. Requires 32 ETH (currently worth over £60,000), a dedicated computer, a stable internet connection, and ongoing maintenance. The rewards are higher because you keep them all. The responsibility is also entirely yours.

Slashing.If a validator double-signs or goes offline for too long, the network penalises them by destroying a portion of their staked tokens. When you stake through an exchange or liquid staking protocol, the operator bears slashing risk — but it is not zero.

Lock-up periods. Some networks require staked tokens to be locked for a fixed period. Ethereum now allows withdrawals, but there can be queues. Other chains may impose weeks or months of unbonding time. During that period, you cannot sell.

Price drops outweigh yield. A 4% annual staking reward is irrelevant if the token falls 40% in value. Staking rewards do not protect you from market losses. They supplement returns on an asset you intend to hold anyway.

Smart contract risk. Liquid staking protocols are software. Software has bugs. A vulnerability in a staking contract could result in loss of funds.

HMRC updated its guidance on staking in 2023. The position is now clear: staking rewards are treated as income and taxed at the point you receive them. The value at the moment of receipt becomes your cost basis for future Capital Gains Tax calculations.

If your total miscellaneous income (including staking) exceeds £1,000, you must report it on a Self Assessment tax return. Below that threshold, the trading allowance covers it.

When you later sell the staked tokens, any gain above the income-tax cost basis is subject to Capital Gains Tax. This creates a two-step tax event: income tax on receipt, then CGT on disposal.