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An NFT is a unique token recorded on a blockchain that can represent a digital or physical-linked asset. Buying one usually gives you control of the token—not copyright to the associated work—and the millions-dollar headlines came from a small number of sales during the 2021 speculative boom.
NFTs can also represent tickets, memberships, game items, domain names and other entitlements. Their value and the rights they provide depend on the specific token, project terms and buyer demand.
What does NFT mean?
NFT stands for non-fungible token. “Non-fungible” means the item is unique rather than interchangeable one-for-one with another item.
A dollar is fungible: one $1 bill can generally be exchanged for another $1 bill. Ordinary cryptocurrency units such as Ether are also designed to be interchangeable. An NFT, by contrast, has its own token ID and transaction history.
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On Ethereum, an NFT under the ERC-721 standard is uniquely identified by the combination of its smart-contract address and token ID, as explained in the Ethereum ERC-721 standard.
The token might be connected to:
- a digital artwork or video;
- a song or other media;
- a membership or community pass;
- an event ticket;
- an in-game item;
- a blockchain domain name;
- a certificate connected to a physical object; or
- a right to redeem a product, service or experience.
So “NFT” describes the structure of the digital record. It does not tell you what the token is worth, what rights come with it or whether it is a sensible purchase. The U.S. Government Accountability Office and Copyright Office report describes NFTs as digital identifiers that can represent digital or physical assets.
How NFTs work
The process usually looks like this:
- A creator uses a smart contract. The contract contains rules for creating and transferring tokens.
- The creator mints the NFT. Minting creates a token and assigns it a token ID.
- Metadata is associated with the token. This may describe the name, image, traits, creator or other attributes.
- The token moves between wallets. A sale is recorded as a blockchain transaction from the seller’s address to the buyer’s address.
- A marketplace reads the records. The marketplace displays the NFT and may provide the software needed to list and purchase it.
Minting does not necessarily mean the digital image itself is stored on the blockchain. The token, metadata and media may be stored in different places. A token can remain on the blockchain even if an external website hosting its image or metadata stops working. See Ethereum’s NFT guide.
ERC-721 and ERC-1155
Two Ethereum standards help explain how different NFTs are built:
| Standard | Typical use | Key feature |
|---|---|---|
| ERC-721 | Individually unique collectibles | Each token is distinct and separately identified |
| ERC-1155 | Game items, tickets and mixed collections | One contract can support fungible, non-fungible and semi-fungible tokens, including batch transfers |
These features are described in the ERC-721 documentation and the ERC-1155 standard.
Buying or transferring an NFT can require a blockchain transaction fee known as gas. On Ethereum, the fee depends on the computational work required and consists primarily of a base fee plus an optional priority fee, according to Ethereum’s gas documentation. A low-value NFT can therefore be uneconomic to buy or sell if network fees are high.
What do you actually own when you buy one?
Normally, you own control of a particular blockchain token and the rights specified by the project’s terms. You do not automatically own the underlying artwork’s copyright.
Copyright ownership is separate from ownership of a physical copy, digital file or NFT. In the United States, transferring copyright generally requires an assignment or license. Buying an object does not by itself give the buyer the creator’s exclusive rights to copy, distribute, modify or commercially exploit the work. See the U.S. Copyright Office’s Circular 92.
Depending on the project, the buyer might receive:
- the right to display the work personally;
- commercial licensing rights;
- access to a private community or service;
- the ability to redeem a physical product;
- game or virtual-world utility; or
- no meaningful rights beyond possession of the token.
Read the project’s license, marketplace listing and terms before buying. A statement that you “own the NFT” is not enough to establish what you can do with the associated artwork.
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Why did some NFTs sell for millions?
NFT prices are not based on the cost of copying the associated image. They reflect what buyers believe the token’s scarcity, provenance, cultural significance, utility and future demand are worth. That belief can change quickly.
1. Blockchain-based scarcity
A digital file can be copied almost perfectly. An NFT can create a limited supply of recognized tokens under a particular contract. That makes the token scarce even though the image may be downloadable by anyone.
This scarcity is not automatic or permanent. A creator can mint more tokens, launch a similar collection or allow unofficial copies unless the project’s contract, reputation or community makes that unattractive. The blockchain can show that you own a token from a particular contract; it cannot stop people from copying the image.
2. Provenance
The blockchain provides a publicly inspectable record of a token’s contract address, token ID and transfers. For collectors, that history can function like provenance for a digital collectible.
It does not prove every important fact. The record may not prove that the artwork is authentic, that the person who minted it had permission to use the work or that the linked file will remain available. A fake collection can have a perfectly visible blockchain history. The GAO and Copyright Office report discusses these limitations.
3. Status and digital identity
Some buyers value NFTs as collectibles, status symbols or membership badges. Profile-picture collections made ownership visible on social media, allowing holders to signal membership in a particular online community.
The economics resemble limited-edition sneakers, trading cards or physical art: the manufacturing or copying cost is not the same as the value collectors assign to the item. NFTs add public transaction histories and the ability to transfer ownership globally without shipping a physical object.
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A collection can become more valuable when more people recognize it, display it, discuss it or build services around it. Celebrities, brands, auction houses, crypto investors and prominent collectors helped bring NFTs to a mass audience during the 2020–2021 boom.
Network effects also work in reverse. If attention, liquidity or community support disappears, scarcity alone does not guarantee a buyer.
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5. Speculation and cryptocurrency wealth
Many NFT purchases were made using cryptocurrency, particularly Ether. As crypto prices and investor confidence rose, some buyers had more capital available and expected to resell at a higher price.
That makes the market highly speculative. A previous sale tells you what one buyer paid at one point in time. It is not a guaranteed valuation, a reliable appraisal or evidence that you could sell the same NFT for a similar amount.
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Established art institutions gave the market additional visibility. On March 11, 2021, Christie’s sold Beeple’s Everydays: The First 5000 Days for $69,346,250. Christie’s described it as the first purely digital NFT-based work sold by a major auction house and a record for digital art at the time, according to its sale announcement.
That result validated one artist and one work in one unusually active market. It did not establish that digital images generally were worth millions.
Were NFTs really “suddenly” worth millions?
The word “suddenly” obscures what happened. The dramatic price surge was concentrated in 2021, when crypto prices, investor enthusiasm, celebrity attention and demand for digital collectibles rose together.
The broader market later shifted toward lower-priced trading and other use cases. DappRadar’s second-quarter 2025 report reported NFT trading volume of $867 million and 14.9 million NFT sales. Its third-quarter 2025 report recorded 18.1 million NFTs sold and about $1.6 billion in trading volume, while noting that many tokens were trading at lower values than during the boom.
Those figures illustrate why both volume and price matter. A market can record more transactions while the average transaction value falls. The more accurate conclusion is that a small number of NFTs reached extraordinary prices during the 2021 speculative boom; NFTs as a category are not generally worth millions.
What are NFTs used for besides artwork?
Potential applications include:
- Digital collectibles: artwork, profile pictures and historical internet artifacts.
- Game items: characters, equipment, skins or other virtual goods.
- Memberships: access to online communities, events, products or services.
- Tickets: event access and fan collectibles with a verifiable transaction record.
- Redeemable claims: tokens that can be exchanged for a product or experience.
- Physical-asset certificates: digital records connected to collectibles or other property.
- Blockchain domains: names recorded on a blockchain rather than through the traditional domain-name system.
- Tokenized real-world assets: digital records representing an interest in an off-chain asset, subject to the legal terms of the arrangement.
The technology may be useful for a ticket or membership even when the token has little value as a speculative investment. Always check what happens if the issuer shuts down, changes the terms or stops supporting the token.
Are NFT royalties automatic?
No. Creators often promote NFTs as a way to earn royalties whenever a token is resold, but payment depends on the contract, marketplace and transfer route.
Ethereum’s ERC-2981 standard can communicate a royalty percentage and recipient. It does not force every marketplace or wallet to pay that royalty. A sale that bypasses a supporting marketplace may not produce a payment to the creator.
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Marketplace rules also differ. OpenSea distinguishes between optional creator earnings and enforced earnings. Collections created through OpenSea Studio after April 2, 2024, at 10 a.m. Pacific Time can use its enforcement system; older or incompatible contracts may support only optional earnings, according to OpenSea’s creator-earnings documentation.
Therefore, “the artist receives a percentage of every resale” is not a safe assumption. Look for the exact royalty mechanism and understand whether it is technically enforced.
Main risks for buyers
The image or metadata can disappear
The token may remain on-chain while its image or metadata becomes unavailable because a hosting company shuts down, a URL changes or a file is replaced. Some projects store information on decentralized systems or directly on-chain, but many do not. Check where the media and metadata are hosted before treating an NFT as a durable collectible. See Ethereum’s NFT guide.
A wallet can be compromised
Blockchain transfers are generally difficult or impossible to reverse. If you sign a malicious transaction, reveal your recovery phrase or lose control of your wallet, an NFT can be transferred away. Even if the theft is later documented, recovery may not be possible. The GAO and Copyright Office report notes that a compromised or stolen NFT may not be recoverable by its rightful owner.
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Fake collections and phishing
Scammers can copy an artist’s image, create a look-alike collection, impersonate a marketplace or send a link that asks you to approve a harmful transaction. Cryptocurrency payments are often difficult to reverse. The FTC’s cryptocurrency scam guidance warns against promises of guaranteed returns and unverified celebrity endorsements.
Before connecting a wallet or signing anything:
- Find the collection through the creator’s verified website or established social account, not an unsolicited message.
- Check the contract address character by character against an authoritative source.
- Read the wallet prompt rather than approving it automatically.
- Never share a seed phrase or private key.
- Treat guaranteed returns, celebrity endorsements and urgent deadlines as scam warnings.
Illiquidity
An NFT can display a floor price without having a buyer at that price. A collection may have many listings but little genuine demand. A single unusual sale may not represent what most tokens in the collection are worth.
Wash trading
Some traders move assets between wallets they control or trade to qualify for marketplace incentives. Research on wash trading in NFT markets found especially high proportions on some incentive-driven platforms. Transaction counts and headline trading volume should not automatically be treated as proof of healthy demand.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How NFTs are taxed in the United States
The IRS generally treats NFTs as digital assets and property rather than currency. Selling or exchanging one can create a taxable gain or loss. Receiving an NFT as payment, compensation or a reward can create income. The IRS requires reporting of taxable digital-asset transactions even when a broker does not provide a statement, as explained in its digital-assets guidance.
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Taxpayers should keep records of:
- the purchase date and price;
- the value and type of cryptocurrency used;
- gas and marketplace fees;
- the sale or exchange date and proceeds;
- the wallet and transaction hash; and
- the value of any NFT received as payment or compensation.
For sales effected after December 31, 2025, broker reporting rules require Form 1099-DA in applicable circumstances. The IRS Form 1099-DA instructions describe gross-proceeds reporting and basis reporting for covered digital assets.
NFT-specific collectible treatment is more complicated. In Notice 2023-27, the IRS said it intended to analyze whether an NFT is a collectible by looking through to the associated asset while further guidance was developed. Because tax treatment can depend on the token, transaction and taxpayer’s circumstances, consult a tax professional rather than relying on a marketplace’s tax summary.
A practical checklist before buying an NFT
- Identify what you are buying. Is it artwork, access, a game item, a ticket or simply a collectible?
- Read the rights. Determine whether the terms grant personal display rights, a commercial license, redemption rights or nothing beyond token ownership.
- Verify the contract. Confirm the contract address, token supply, creator identity and whether additional tokens can be minted.
- Check the storage. Find out whether the media and metadata are on-chain, stored through a decentralized system or hosted on an ordinary server.
- Review actual demand. Look at completed sales, sale frequency and the number of unique buyers—not just the floor price.
- Calculate total cost. Include the purchase price, gas, marketplace fees, currency-conversion costs and potential tax consequences.
- Assume you may not be able to resell. Buy only with money you can afford to lose, and do not treat an NFT as an emergency fund or dependable investment.
FAQ
Do NFTs give you copyright ownership of an image?
Usually not. Buying an NFT generally gives you control of the blockchain token and whatever license or benefits the project’s terms provide. Copyright normally remains with the creator unless it is separately assigned or licensed.
Why can an NFT be expensive if anyone can copy the image?
The NFT creates scarcity and a public ownership history at the token level, not exclusive control of every copy of the image. Collectors may also value provenance, cultural status, membership benefits and expected future demand.
Can an NFT lose all of its value?
Yes. Scarcity does not guarantee demand or liquidity. A collection can lose attention, community support or marketplace access, and the linked media can become unavailable. A past sale is not a guarantee of future value.
Are NFT profits taxable?
In the United States, the IRS generally treats NFTs as digital assets and property. Selling or exchanging one can create a taxable gain or loss, while receiving one as payment or compensation can create income. Keep transaction records and seek current tax advice for your situation.
The Bottom Line
NFTs are blockchain tokens that can identify a unique digital or physical-linked asset. Their record of ownership can be useful, but it does not automatically convey copyright, guarantee royalties or preserve the associated file.
The million-dollar headlines came from a narrow period of intense speculation, celebrity attention and cryptocurrency wealth. If you are considering a purchase, treat it as a high-risk collectible or speculative asset: verify the contract and rights, calculate every fee, protect your wallet and assume you may not find a buyer later.
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