How are token vesting and unlocks taxed?
As ordinary income at fair market value, under the house treatment for the vesting category: a token unlock or vesting claim received is income on receipt. Timing turns on when the property substantially vests under IRC section 83, and a locked stream may vest ratably rather than in full at the claim transaction. The later sale is a separate capital gain or loss measured against the amount already taxed as income.
Key takeaways
- A token unlock or vesting claim is ordinary income at fair market value;
vestingis a first-class category on the wire with the income treatment. - Timing turns on IRC section 83: income lands when the tokens substantially vest, which is not always the day the claim transaction is signed.
- A locked stream may vest ratably, so one claim can sweep months of income with different measurement dates rather than one price print.
- The amount taxed as income becomes cost basis, and the later sale is a separate capital gain or loss from that basis.
What a vesting distribution looks like on-chain
Team, advisor, contributor, and investor allocations usually sit in a vesting or lockup contract that releases tokens on a schedule -- a cliff, then linear release, or a stream that accrues continuously. What the chain records is unremarkable: a transfer out of a contract to the recipient's address, sometimes triggered by a claim transaction, sometimes pushed automatically. The tax character comes from what the arrangement is, not what the transfer looks like, which is why a vesting claim misread as a plain transfer silently drops income from the books.
The income answer
The house treatment books a vesting distribution as ordinary income at fair market value on receipt. The frame is the same accession-to-wealth analysis that governs other crypto receipts: value received, with dominion and control, is income when it is received -- the logic covered for airdrops and staking rewards. What distinguishes vesting is that the allocation is usually compensation or a scheduled entitlement that was subject to conditions, so the timing analysis runs through IRC section 83 rather than through a revenue ruling written for rewards. Employment-tax, withholding, and reporting mechanics for compensatory grants are preparer territory; the classification layer's job is to name the receipt and its treatment honestly.
Timing under IRC section 83
Section 83 taxes property received for services when it is transferable or no longer subject to a substantial risk of forfeiture -- when it substantially vests. On-chain schedules make that concrete: before the unlock date the tokens can be forfeited or cannot move, so they are not yet income; when the restriction lapses and the tokens are freely claimable, the vesting moment has arrived. A claim transaction signed weeks later is custody, not a new taxable event, when nothing stood between the recipient and the tokens but the act of claiming -- the same dominion-and-control timing logic worked through in when are staking rewards taxed. The honest caveat: arrangements differ. Some unlocks still carry contractual restrictions after the on-chain release; sometimes the claim genuinely is the first moment of control. Where the evidence does not settle the timing, the defensible move is to flag the row for review rather than assume either date.
Ratable streams and big claims
The Standard's definition carries a second timing nuance: a locked stream may vest ratably rather than in full at the claim. A recipient who lets a streaming allocation accrue for a year and then claims once has not earned a year of income on the claim date; the income accrued across the vesting dates it represents, each with its own fair market value. Collapsing that history into one price print misstates income in whichever direction the market moved. It is a measurement question the classification record should surface, not flatten.
Cost basis and the sale that follows
The fair market value taxed as income becomes the cost basis of the tokens, and the holding period starts at vesting. A sale on the vesting day realizes little or no gain; a sale later is a disposal measured against that basis, capital rather than ordinary. Keeping the two events separate -- income at vesting, capital gain or loss at sale -- is exactly what breaks when the original distribution was booked as a transfer with no basis at all, the failure mode behind missing cost basis downstream.
How the engine serves it
vesting is a first-class category on the wire, carrying the income treatment -- the definition and its section 83 anchor are published in the Classification Standard. The work is identification: separating a vesting claim from an airdrop, a reward harvest, or a plain transfer, because all four look like tokens arriving at an address. Where the evidence does not settle what the receipt is, the row routes to needs_review instead of inheriting a guessed treatment.
Frequently asked questions
Are vested tokens taxable when they unlock or when I claim them?
Income lands when the tokens substantially vest under IRC section 83, and on many schedules that is the unlock, not the later claim transaction. When unlocked tokens sit freely claimable with no remaining restriction, the claim is custody rather than a new taxable moment. Where an arrangement keeps real restrictions past the on-chain unlock, the vesting moment moves with the restrictions; where the evidence does not settle it, the honest answer is review, not a guess.
What is my cost basis in tokens received from vesting?
The fair market value that was included in income. That amount becomes the basis, the holding period starts at vesting, and the later sale is a separate capital gain or loss measured from there. A vesting receipt booked as a plain transfer carries no basis, which is how income goes missing at receipt and gain gets overstated at sale.
How is a vesting distribution different from an airdrop?
Both are ordinary income at fair market value with dominion and control. The difference is what the receipt represents and how timing is analyzed: an airdrop is a distribution connected to participation or holdings, taxed on the receipt analysis of Rev. Rul. 2019-24, while vesting is a scheduled allocation, often compensation, whose timing runs through IRC section 83 and can vest ratably over a stream.
What about an 83(b) election?
An 83(b) election moves the income moment to the grant for property still subject to forfeiture, and it must be filed within 30 days of the transfer. Whether one was made is a fact about the taxpayer's filing, not about the chain, so no classification engine can read it from the transaction. The record carries the receipt and the default treatment; the preparer applies the election where it exists.
Do vesting distributions appear on Form 1099-DA?
No. Form 1099-DA reports dispositions effected by custodial brokers, and a vesting contract distributing tokens to a self-custody wallet involves no broker and no disposition. The income surfaces only in wallet-history imports, which is exactly where a vesting claim misclassified as a plain transfer does its damage.
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This is informational only, not tax advice; verify with a qualified tax professional before filing.