Lesson 7 — Hidden taxable events: airdrops, hard forks, DeFi, NFTs, wrapped tokens

**Airdrops.** In the US, airdrops are ordinary income at fair market value upon receipt (with 'dominion and control' triggering the income event). In the UK, HMRC distinguishes between 'in expectation of service' (income) and unsolicited windfalls (CGT on later disposal with zero basis). In most EU jurisdictions, treatment is similar to the US — income at receipt. The practical issue: airdrops often arrive in your wallet without action on your part, and the FMV can be hard to determine for thinly-traded tokens. Best practice: record the airdrop date, the token, the quantity, and the FMV from the largest available market (or note no market exists, in which case zero or de minimis income may be defensible).

**Hard forks.** Per IRS Rev. Rul. 2019-24, if you held the pre-fork chain and received the post-fork chain's tokens, those tokens are ordinary income at fair market value at the moment of dominion and control. HMRC's position is similar. The 'dominion and control' question matters — receiving Bitcoin Cash in your Coinbase account when Coinbase enabled trading is a clear control event; receiving an obscure fork in a wallet that doesn't recognise it is more ambiguous. Conservative position is income at the moment the tokens become movable.

**DeFi swaps.** Every token-for-token swap on a DEX is a taxable disposal of the input token and acquisition of the output token. The user often does not feel like they 'sold' because no fiat moved, but the chain recorded a disposal. Multi-hop swaps (e.g., ETH → USDC → LINK via a router) are typically treated as a single swap from the user's perspective even though intermediate tokens flowed through the router — the practical position the tax software takes is the in-out treatment unless the user explicitly elected each leg.

**LP token mints (depositing into a liquidity pool).** UK HMRC's DeFi Manual treats LP mints as a disposal of the underlying tokens. The US position is less settled — some tax software treats it as a disposal, others as a non-taxable transfer. The conservative position is to treat as disposal at the time of LP mint. When the LP token is later burned (withdrawing liquidity), that's another taxable event against the LP token's basis. Practical reality: LP token mechanics are complex enough that the tax software's classification is usually a starting point, not a final answer, and a tax professional should review.

**Staking rewards.** Income at fair market value upon receipt in most jurisdictions (the IRS, HMRC, and most EU positions). Liquid-staking variations (stETH from Lido, rETH from Rocket Pool) often complicate this because the staked token's value changes through rebasing or wrapping. The conservative position: any new rewards received are income at receipt; rebasing variants may or may not produce income events on each rebase depending on jurisdiction and the specific mechanism.

**Lending interest (DeFi).** Receiving interest from a DeFi lending protocol (Aave, Compound, etc.) is income at the point of receipt or accrual. Some jurisdictions allow cash-basis (income only when withdrawn) for individual investors; others require accrual (income as it's earned). The treatment of the underlying lent-out tokens — whether the lending act itself is a disposal — varies by jurisdiction. UK HMRC's DeFi Manual generally treats lending crypto as a disposal at the time of lending.

**NFT income.** For NFT creators, mint sales are typically ordinary income (or self-employment income) at the FMV received. Royalties on secondary sales are ordinary income at receipt. For NFT collectors, acquiring an NFT is not taxable; disposing is CGT against the acquisition basis. Royalty income to the original creator on a secondary sale is income to the creator, not the seller. NFT-Fi activities (lending NFTs, fractionalising, etc.) are similar to other DeFi positions in their tax-classification difficulty.

**Wrapped tokens.** Wrapping ETH to wETH is a frequent area of ambiguity. The economic substance is unchanged (you still hold the same value, the wrapper is technical infrastructure), but the chain records it as a disposal of ETH and acquisition of wETH. US tax practice has trended toward treating wrap/unwrap as non-taxable because of the lack of economic change, but the conservative position (treating as a disposal) is defensible. UK HMRC's DeFi Manual has indicated that wrapping is a disposal under their framework. When in doubt, treat as a disposal — the resulting basis is identical anyway, so the only effect is that more rows appear on the tax return.

**The general defensive posture.** When you encounter a new DeFi mechanism whose tax treatment is unclear: document the transaction completely (txhash, FMVs, the protocol's own description of what happened), pick a defensible position, apply it consistently across similar transactions, and note your reasoning. Tax authorities reward consistent documented positions even when the underlying treatment is later clarified differently. The worst posture is inconsistent treatment of similar transactions — that suggests the user was selectively favourable, which invites scrutiny.