Coins vs Tokens: The Distinction Most Beginners Skip
Every cryptocurrency gets called a 'coin' in everyday conversation, but coins and tokens are built differently, and that difference changes what you're actually holding.
By Firoz Khan|28 August 2026|Updated 26 September 2026|4 min read
'Coin' gets used as a catch-all in everyday conversation, but it actually means something specific, and the thing it's usually confused with, a token, is built and behaves differently. Knowing which one you're looking at changes how you should think about the risk.
Coins have their own blockchain
Bitcoin and Ether are coins: each is the native asset of its own independent blockchain, with its own network of nodes and its own rules. A coin is what you use to pay the transaction fee on that specific network, it's baked into how the chain functions, not an add-on running on top of something else.
Tokens are built on top of someone else's chain
A token doesn't have its own blockchain, it's issued using a standard, most commonly Ethereum's ERC-20 standard, on a network that already exists. That's why so many tokens exist relative to coins: launching a token requires writing and deploying a smart contract on an existing chain, not building and securing an entire new network from scratch, which is a dramatically lower bar.
Ethereum.org describes ERC-20 as a standard interface for tokens inside smart contracts. A token following it can represent almost anything, such as reputation points on a platform, a character's skills in a game, a share in a company or a fiat currency like the dollar. It behaves like ETH in one respect, because one token is equal to every other, but it needs a smart contract to exist, while ETH is built into the protocol itself. Sending a token still needs a small amount of ETH to pay the network fee.
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Different tokens do different jobs
A utility token grants access to a specific product or service, a governance token gives holders a vote on decisions within a protocol, and some tokens are structured to represent a claim on an asset or a share of profits, which can bring them close to how UK regulation defines a security, with all the regulatory scrutiny that implies. The label 'token' tells you almost nothing about which of these you're holding until you check.
How HMRC sorts tokens
HMRC's guidance names four main types. Exchange tokens are intended to be used as a means of payment, and Bitcoin is the example. Utility tokens give the holder access to particular goods or services on a platform. Security tokens give rights or interests in a business, such as ownership, repayment of a sum of money or a share of future profits. Stablecoins are pegged to something considered stable, such as a currency. HMRC adds that the tax treatment of any token depends on its nature and use, not on the label it carries.
For Capital Gains Tax, each type of token you hold has its own pool and its own pooled cost, so a wallet with several tokens means several sets of records. Swapping one token for another is a disposal of the one you give up.
Why the distinction matters for risk
A token's fortunes depend on two separate systems working: the project itself, and the underlying blockchain it's built on. If that underlying chain gets congested, expensive to use, or runs into a serious technical problem, every token built on it feels the effect, regardless of how well the individual project is run. A coin only has to worry about its own network.
A quick way to check what you're actually looking at
A block explorer for the relevant chain will show whether an asset has its own native blockchain or is listed as a contract address on someone else's, the practical giveaway. If you can find a contract address for it, it's a token, and it's worth checking which chain that contract sits on before assuming its fees and speed match the coin you're used to.
A reminder
The FCA risk warning still applies to higher-risk crypto content. Always assess how much risk you are willing to take before buying.
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