How is DeFi yield farming and liquidity mining taxed in 2025?

DeFi (Decentralized Finance) activities create multiple taxable events that many participants overlook. The IRS has not issued specific guidance on all DeFi activities, but general tax principles apply.

Yield farming/liquidity mining rewards: Tokens received as rewards for providing liquidity are generally treated as ordinary income at the fair market value when you receive them (similar to mining income). This is taxable even if you do not sell the tokens. Report this on Schedule 1 as other income, or on Schedule C if it rises to the level of a business.

Providing liquidity to pools: When you deposit tokens into a liquidity pool and receive LP (liquidity provider) tokens, this may be treated as a taxable exchange. The swap from Token A and Token B into LP tokens could trigger capital gains/losses on the tokens deposited. This is an area of significant uncertainty, and some tax professionals argue it is not a taxable event. Document your position and be consistent.

Impermanent loss: If you withdraw from a liquidity pool and receive fewer tokens than you deposited (due to price divergence), the loss is generally only recognized when you dispose of the LP tokens. Impermanent loss is not separately deductible as a loss while you remain in the pool.

Token swaps: Every swap of one cryptocurrency for another (e.g., ETH for USDC) on a DEX is a taxable event, just like selling one stock and buying another. You must calculate and report the gain or loss on the disposed token.

Practical advice: Use crypto tax software (Koinly, CoinTracker, TokenTax) that supports DeFi transaction tracking. Manually tracking DeFi transactions across multiple protocols and chains is extremely difficult. Keep records of every transaction, including gas fees (which can be added to cost basis or deducted as expenses).