NFTs, Explained Without the Hype or the Cynicism
What a non-fungible token actually proves you own, what it doesn't, and the risks that got buried under the 2021 mania and never quite went away.
By Firoz Khan|17 September 2026|Updated 25 September 2026|4 min read
NFTs picked up a reputation during the 2021 boom that's been genuinely hard to shake, most of it earned. Underneath the hype and the backlash, an NFT is a specific, fairly narrow piece of technology, and understanding what it actually does is more useful than either dismissing or defending the category wholesale.
What 'non-fungible' actually means
A fungible asset is interchangeable, one pound coin or one ETH is identical in value and function to any other unit of the same asset. A non-fungible token is unique and not interchangeable with another token from the same collection, even one that looks superficially similar. That uniqueness is the entire property being sold.
On Ethereum, NFTs are built to standards, mainly ERC-721 and ERC-1155. Ethereum.org describes NFTs as individually unique and provably scarce, with ownership that anyone can verify publicly. That verifiability is what the technology adds. It says nothing about whether a particular NFT is worth owning.
What owning an NFT actually gets you
You own a token recorded on-chain that points to something, usually via a link or an identifier rather than storing the image or file directly on the blockchain itself. Most NFT artwork actually lives on separate, off-chain storage, which means the token's long-term value depends partly on that external file remaining accessible, a risk that's easy to miss and rarely mentioned during a sale.
What you usually don't get
Owning an NFT does not automatically give you the copyright in the artwork it points to. Creators can also program royalties into the smart contract, so a share of future sales may go back to them. Read the terms attached to a collection before assuming you have any rights beyond owning the token itself.
Beyond profile picture art
The more defensible uses tend to be functional rather than purely collectible: ticketing that prevents fraud and enables resale tracking, membership tokens that gate access to a community or service, verifiable in-game items, and tokens representing fractional or verifiable ownership of a real-world asset. These use cases don't rely on the token's price going up to be genuinely useful.
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Why most NFT value collapsed after 2021
Trading volume and prices across the NFT market fell sharply from their 2021 peak, largely because pricing had detached from any underlying utility and was instead driven by hype and speculation on future resale value. Low-effort collections were easy to mint in bulk, trading liquidity for most NFTs was thinner than it looked during the boom, and once buying pressure slowed, prices for the large majority of collections fell hard and stayed down.
What to actually check before buying one
Verify the smart contract address matches the genuine creator rather than a copycat listing, check where the underlying file is actually hosted and how permanent that hosting arrangement is, and look at real recent trading volume rather than the listed floor price alone, since a floor price with almost no buyers behind it isn't a price you can actually achieve on a sale.
Security
Ethereum.org says security problems with NFTs are most often phishing scams, smart contract vulnerabilities or user errors such as accidentally exposing private keys, and that good wallet security is critical for NFT owners. A fake listing or a "free mint" link that asks you to sign something is the usual route in.
How NFTs are taxed in the UK
HMRC's guidance says NFTs are separately identifiable, so they are not pooled the way Bitcoin or Ether is, and the matching rules do not apply. Each NFT has its own cost and its own disposal. Selling, swapping or giving one away, other than to a spouse, civil partner or charity, is a disposal for Capital Gains Tax. HMRC also says the tax treatment depends on the nature and use of the token, not what it is called, and that whether someone is trading is a question of fact.
Say you buy an NFT for £1,800, paid in pounds, and later sell it for £2,600. The gain is £800 before allowable costs, which would sit inside the £3,000 annual exempt amount for 2026/27 if you had no other gains. If you buy with crypto, that payment is itself a disposal of the crypto you spent. The prices are examples. Creating and selling NFTs as a business or regular activity can be taxed as income, so check HMRC's guidance for your situation.
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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