Curve and Convex: gauges, veCRV and reward streams explained

How Curve LP tokens, gauges, CRV emissions, veCRV locks and Convex wrappers work, and the accounting choices each step raises.

2026-10-17 · 6 min read

A single Curve position can involve four or five tokens: the assets you deposit, the LP token you get back, the gauge that pays CRV, possibly a Convex wrapper, and locked governance tokens that cannot be sold. Each layer needs its own line in your records and its own policy decision.

Pools and LP tokens

When you add liquidity to a Curve pool, the pool mints LP tokens representing your share [4]. You can later withdraw in balanced proportions or take a single asset out [4]. Swap fees are charged on trades; on many pools a default admin share of 50 percent goes to veCRV holders and the rest stays with liquidity providers [4]. The LP share does not arrive as a separate payment. It shows up in the pool's virtual price, the value of one LP token relative to the underlying assets [4].

That matters for bookkeeping. Trading-fee yield is embedded in the LP token's value and is only realized when you withdraw, while CRV rewards arrive as distinct tokens you can see and count.

Gauges and CRV emissions

To earn CRV, you deposit your LP tokens into the pool's liquidity gauge. Gauges measure each user's liquidity over time, and newly minted CRV is distributed in proportion [1]. You collect it by calling the Minter contract, which mints the CRV you have accrued [1]. A gauge controller sets how much of each week's emissions each gauge receives, based on veCRV holders' votes [1]. Newer gauge versions can also pay up to eight additional reward tokens alongside CRV [1].

veCRV: locking and boost

veCRV is vote-escrowed CRV. You lock CRV for between one week and four years, and the longer the lock, the more veCRV you get [3]. Voting power then declines linearly toward the unlock date, and the CRV can only be withdrawn once the lock expires [2]. veCRV cannot be transferred [2][3].

Holding veCRV brings four benefits: a share of weekly fee revenue, gauge-weight voting, governance voting, and a boost of up to 2.5 times on your own CRV rewards from providing liquidity [3].

Convex: boosted rewards without locking

Convex lets Curve liquidity providers stake their LP tokens through it and earn trading fees and boosted CRV without locking CRV themselves, plus CVX rewards [5]. Convex achieves the boost by holding a large veCRV position of its own.

Convex also offers cvxCRV. You deposit CRV, Convex locks it permanently as veCRV, and you receive cvxCRV one-for-one [6]. The conversion only goes one way; the practical exit is selling cvxCRV for CRV on a secondary market [6]. Staked cvxCRV earns a mix of Curve fee revenue paid in crvUSD, CRV and CVX, with the mix selectable by the holder [6].

Accounting: the policy decisions

LP deposit. Depositing two stablecoins and receiving an LP token can be treated as a disposal of the deposited assets or as a non-taxable change in form with basis carried into the LP token. HMRC's DeFi guidance makes the answer depend on whether beneficial ownership of the tokens passes [7]. Choose a policy, document why, and apply it consistently. Staking the LP token into a gauge or through Convex raises the same question one level up.

Reward income. CRV and CVX rewards are commonly recognized as income when the entity obtains control, measured at fair value then, which also sets the cost basis of the new tokens. For US tax, the IRS has ruled that staking rewards are income in the year the taxpayer gains dominion and control, at fair market value on that date [8]; the ruling is about staking, so applying it to liquidity-mining rewards is an analogy rather than a direct rule. A frequent practical question is whether accrued but unclaimed CRV is controlled before the claim transaction; many entities wait for the claim.

Locked tokens. CRV in veCRV, and CRV converted to cvxCRV, both remain economic exposure but neither can be freely sold: veCRV is non-transferable until expiry [2], and cvxCRV can only be exited by selling it [6]. Present locked CRV separately from liquid holdings, disclose the unlock date, and exclude it from liquidity measures. Measurement under your framework, including whether the locked position is in scope of fair-value rules, should be assessed with your auditors.

What to do

• Map every layer of each position: deposited assets, LP token, gauge or Convex stake, and locked tokens.
• Set and document an LP deposit policy, continuity or disposal, and apply it to gauge and Convex staking too.
• Record reward claims transaction by transaction with the token, quantity and fair value at claim.
• Track veCRV lock expiry dates and present locked CRV separately from liquid holdings.
• Treat cvxCRV as its own asset with its own price, since it does not redeem back to CRV.
• Reconcile LP token value to virtual price at period end so embedded fee growth is visible.

Sources

1. The Curve DAO: Liquidity Gauges and Minting CRV (Curve Finance)
2. Curve DAO: Vote-Escrowed CRV (Curve Finance)
3. veCRV | Curve Knowledge Hub (Curve Finance)
4. Curve StableSwap: Pools (Curve Finance)
5. Convex for Curve.fi (Convex Finance)
6. Understanding cvxCRV (Convex Finance)
7. CRYPTO61620 - Decentralised Finance: Lending and staking: Chargeable Gains: Making a DeFi loan (HMRC)
8. Revenue Ruling 2023-14 (IRS)

General information for finance teams, current as of publication. Not legal, tax or accounting advice.

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