Crypto Airdrop Tax 2025 — US Guide
Airdrops are ordinary income at FMV at receipt — IRS made this clear in Rev. Rul. 2019-24. The remaining questions are about timing ("when is receipt?"), valuation ("what FMV when no market exists?"), and edge cases (rejected airdrops, vested airdrops, claim-based airdrops).
The IRS position — Rev. Rul. 2019-24
Issued October 2019, Rev. Rul. 2019-24 holds that "an airdrop following a hard fork results in ordinary income for the taxpayer who receives the new cryptocurrency." The ruling specifically addresses Bitcoin Cash 2017, but the principle extends to all airdrops:
- Income recognition: when the taxpayer obtains dominion and control
- Amount of income: fair market value of the airdrop in USD at the moment of dominion
- Cost basis: equals the FMV recognized as income (so future sale gain/loss is computed from there)
Dominion and control — the timing question
"Dominion and control" means you can transfer, sell, or use the token. Different airdrop mechanisms create different dominion timing:
Passive airdrops (no claim required)
Tokens appear in your wallet without action (e.g. early Bitcoin Cash distribution). Dominion = receipt. Income recognition = receipt block. Some chains have "viewable but not transferable" pre-launch states; in those, dominion arrives when transfer becomes possible.
Claim-based airdrops (most modern airdrops)
UNI (September 2020), ENS (November 2021), ARB (March 2023), OP (May 2022), JTO (December 2023): all required clicking "Claim" to receive tokens.
- Pre-claim: no dominion. You hold a "right to claim" but cannot sell or transfer the underlying token.
- Upon successful claim transaction: dominion. Income at that moment's FMV.
Practical implication: if a token's price has dropped between airdrop announcement and your claim, you owe tax on the lower price (your claim FMV). If the price has risen, you owe tax on the higher price.
Vested airdrops (tokens unlock over time)
Some airdrops include vesting schedules (e.g. Aptos APT had a vesting cliff). Each tranche of unlocked tokens is income at its unlock-date FMV. Manual tracking required — most software handles single-event airdrops well but fumbles multi-tranche vesting.
FMV when no market exists yet
New token airdrops sometimes precede listings by hours or days. Example:
- Airdrop becomes claimable at 14:00 UTC
- First Uniswap pool with reasonable depth: 14:30 UTC at $5
- Binance listing: next day at $8
Conservative approach: use the first reasonably liquid market price within a short window of claim. The 14:30 UTC Uniswap price ($5) is defensible. The $8 next-day price is too late and likely too high.
If no market exists for days, you may use the first liquid price retroactively — but you also could argue dominion did not arrive until first transferability. Document your position; both Koinly and CoinLedger have configurable airdrop FMV strategies.
Major retroactive airdrops — what they were worth at claim
| Airdrop | Date | Tokens | FMV at peak claim |
|---|---|---|---|
| UNI (Uniswap) | Sept 2020 | 400 UNI | ~$1,200 (at $3 launch); peaked $17,000 later |
| ENS (ENS Domains) | Nov 2021 | ~50–500 ENS varied by usage | $3,000–$20,000+ |
| ARB (Arbitrum) | Mar 2023 | 625–10,200 ARB tiered | $800–$13,000+ |
| OP (Optimism) | May 2022, multiple rounds | ~750 OP per active address | $700–$2,500 |
| JTO (Jito) | Dec 2023 | ~5,000–50,000 JTO | $10,000–$100,000+ |
The cost basis trap: users who held UNI from claim through 2021 peak (~$45) and never sold realized HUGE unrealized gains. Many didn't recognize the airdrop as income, then later sold at $20 and reported the entire $20 as capital gain — when actually they owed ordinary income at claim ($3) and only $17 as capital gain.
Refusing or ignoring an airdrop
Common question: can you refuse an airdrop to avoid tax?
- Passive airdrops: conservative position is no — once tokens are in your wallet and transferable, you have dominion. Ignoring them does not undo the tax event.
- Claim-based airdrops: not claiming = no dominion = no tax. But you also forfeit the airdrop. If you claim 18 months later when prices may have changed, you owe tax at THAT later FMV.
Some practitioners argue you can "abandon" a passive airdrop by sending tokens to a burn address before realizing income. The IRS has not clearly opined. Risky position; not recommended unless you also intend to forgo any future value.
Reporting on your tax return
- Schedule 1, Line 8z "Other income": include description "Cryptocurrency airdrop" and amount.
- Subsequent disposal: Form 8949 + Schedule D, with cost basis = airdrop receipt FMV.
State tax
States with income tax tax airdrops as ordinary income at the state rate. Same as staking and other ordinary income.
Software handling
Koinly auto-detects airdrops from on-chain data and proposes FMV based on the day's average DEX price. Review each airdrop in the Koinly UI — sometimes the auto-detected FMV is wrong (especially for thinly-traded new tokens).
CoinLedger requires you to manually classify airdrops in some cases. Worth the extra step for accuracy.