NFTs and taxation: why the label tells you nothing and the substance tells you everything
Non-fungible tokens have introduced a category of digital asset that existing tax frameworks were not designed to address, and the challenge is more fundamental than it first appears. Unlike fungible crypto assets, where classification frameworks are at least beginning to emerge, NFTs resist generalisation almost by design. The label tells you almost nothing, whilst he substance tells you everything.
What an NFT actually is
An NFT is a token on a blockchain that is unique and not interchangeable with any other token on a one-to-one basis. That technical definition is where the simplicity ends. An NFT is best understood as a wrapper, a container that can hold almost anything: a piece of digital art, a real estate title, a membership right, a royalty stream, a gaming item, a fraction of a fund, or a combination of several of these simultaneously. The smart contract and the terms attached to the token determine what the holder actually owns and what they can do with it.
Two NFTs that are visually identical and issued as part of the same collection may carry completely different rights depending on their individual smart contracts. One may confer display rights to an image and nothing else. Another may confer display rights, a share of secondary market royalties, access to a private investment community, and governance rights over the project. The tax analysis of those two tokens is not merely different in degree. It may be different in kind.
Why substance over form is the only possible starting point
For fungible tokens, tax authorities and regulators have at least begun to develop classification frameworks. The OECD's CARF framework addresses fungible crypto assets. MiCA defines asset-referenced tokens, e-money tokens, and other crypto assets. ESMA has published guidance on when a token constitutes a financial instrument under MiFID II. Those frameworks are imperfect and incomplete, but they exist.
For NFTs, no equivalent framework exists. MiCA explicitly excluded NFTs from its scope on the basis that they are unique and non-fungible, but the European Commission and ESMA have both acknowledged that fractionalised NFTs and NFTs issued in large series with identical characteristics may fall back within MiCA's scope if they are in practice fungible. The label NFT is therefore not a safe harbour from regulatory classification, and it is not a safe harbour from tax classification either.
The substance over form principle, which requires that the economic reality of a transaction determine its tax treatment rather than its legal form or label, applies across all areas of tax law. For NFTs it is not merely a useful principle. It is the only possible starting point, because there is no form to fall back on. The substance, i,e. the underlying asset, the rights attached, the economic characteristics, and the holder's intentions, is critical.
The classification dimensions
A rigorous NFT tax analysis requires examining several dimensions simultaneously.
The first is the nature of the underlying asset. An NFT representing a piece of digital art with no further rights attached is a very different asset from an NFT representing a fractional interest in real estate, a revenue share agreement, or a financial instrument. The underlying asset may determine the entire tax classification and the applicable regime.
The second is the legal rights conferred. Does the NFT give the holder display rights only, or does it confer commercial licensing rights, reproduction rights, or distribution rights? Does it entitle the holder to ongoing royalty payments on secondary market sales? Does it grant governance rights, voting rights, or access to economic benefits tied to the performance of an underlying business or asset? Each right points toward a different tax treatment and may need to be analysed separately.
The third is the economic characteristics. Does the NFT generate recurring income for the holder? Is there a reasonable expectation of profit derived from the efforts of others? If so, the NFT may begin to resemble a financial instrument or an investment contract, with consequences that extend well beyond the crypto tax framework into the regulation of financial instruments and potentially securities law.
The fourth is the holder's perspective. The tax analysis for the creator of an NFT is completely different from the analysis for a secondary market buyer. A creator who mints and sells NFTs as part of a business activity may be treated as carrying on a trade, with proceeds taxed as business income rather than capital gains. A secondary market buyer who acquires an NFT as an investment and later sells it at a gain faces a capital gains analysis, subject to the applicable rules on cost base, holding period, and loss recognition.
The fifth is the purchase currency. Where an NFT is acquired using another crypto asset, such as ETH, the acquisition itself may trigger a disposal of that crypto asset, giving rise to a taxable event at the moment of purchase before any question of the NFT's own tax treatment has even been addressed.
The royalty question
NFTs that entitle the holder to ongoing royalty payments on secondary market sales generate a category of income that most tax frameworks have not specifically addressed. Those royalties are likely to be treated as income at the point of receipt, separate from any gain or loss on the eventual disposal of the NFT itself. The holder therefore faces two distinct streams of potential tax liability: income from royalties as they accrue, and a capital gain or loss when the NFT is eventually sold. The interaction between those two streams, particularly in relation to cost base adjustments and loss recognition, requires careful analysis.
Fractional and semi-fungible NFTs
The complexity increases further when NFTs are fractionalised or when semi-fungible token standards are used. A fractionalised NFT splits a single non-fungible token into multiple fungible tokens representing fractional ownership interests. Those fractions are fungible with each other, and their tax treatment may be entirely different from the treatment of the original NFT. Depending on the rights attached and the economic characteristics of the fractions, they may begin to resemble utility tokens, security tokens, or even payment tokens, each of which carries its own regulatory and tax consequences.
Semi-fungible tokens, which behave as fungible during a certain period and become non-fungible afterwards, introduce additional complexity around the timing of the classification change and whether that change itself constitutes a taxable event.
The Luxembourg position
Luxembourg has issued no specific guidance on the tax treatment of NFTs. Holders, creators, and operators based in Luxembourg are therefore required to conduct a fact-specific analysis applying general tax principles to a category of asset those principles were not designed to address.
This is not a position unique to Luxembourg. Most jurisdictions are in the same position. But the absence of guidance does not reduce the importance of getting the analysis right. An NFT with complex rights attached may generate multiple streams of taxable events simultaneously, and a misclassification of the asset at the outset can have material consequences for the treatment of every subsequent transaction.
What this means for operators
For crypto asset operators who facilitate the purchase, sale, or transfer of NFTs on behalf of clients, the classification question has implications beyond the client's personal tax position. The categorisation of an NFT as a financial instrument, a collectible, or another type of asset may affect the operator's own regulatory obligations, including under MiCA and DAC8. Operators who have not yet considered how NFT activity fits within their compliance framework should do so as a matter of priority.
