What is Yield farming?

How it works

A protocol launches with token incentives layered on top of base yields. Examples:

• A lending market pays 3% interest on deposits + 10% in protocol governance tokens = 13% headline APY
• An LP position earns 1% in trading fees + 20% in protocol token rewards = 21% APY
• A staking vault on a new chain pays 5% in native token + 30% in early-deposit incentives = 35%

Yield farmers ("degens" or more specialized "farmers") deposit, claim rewards, sell or compound them, and rotate to whatever's offering the highest APY that week. Sophisticated farmers automate the whole loop with bots.

Example

A 2021 yield-farming cycle on a Polygon protocol:

• Deposit $10k of USDC/USDT LP
• Earn 0.05% trading fees + 80% APY in newly-emitted protocol tokens
• After 30 days: ~$700 in token rewards plus minimal trading fee income
• Sell rewards immediately or face dump risk as other farmers do
• Token price drops 60% over the next month as emissions exceed organic buying

Net for the patient farmer: maybe 10% in 30 days if they sold rewards strategically. For the late-arriver who held the rewards and ate the dump: net negative.

Why it matters

Yield farming generates wealth for a narrow group:

• First movers — early on a new protocol with high APY before TVL dilutes the rate
• Bots and pro farmers — automated rotation, bridging, and tax-aware harvesting
• Token emitters — projects that bootstrap users via incentives and hope some stick

It typically loses for:

• Retail latecomers — by the time you read about a hot farm on Twitter, the APY has compressed and the early farmers have sold rewards into your buy pressure
• Set-and-forget holders — rewards in newly-emitted tokens often dump 50–80% in the first months
• Anyone underestimating gas + tax friction — every harvest, every claim, every swap is a taxable event in the US, and gas fees compound

Practical guardrails:

• Treat any yield over 20% APY as risk premium, not free money. The yield is compensating you for some risk (smart-contract bug, impermanent loss, token dump, peg failure).
• Account for taxes. Reward claims are ordinary income at receipt; you owe tax on tokens you may not have sold.
• Sell incentive tokens promptly. "Compounding" by holding the reward token is bullish on the token; the math works only if the token doesn't dump.
• Bigger pool TVL = lower individual APY. A pool that paid 80% with $5M TVL pays 8% when it grows to $50M. The headline number you saw last week is rarely the rate you'll actually earn.

Most retail "yield farming" winds up close to break-even after fees, taxes, and IL — sometimes negative. Stick to simpler holds (staking ETH, lending USDC on Aave) unless you have a real edge.