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Block Rewards

In Chia, the issuance schedule, also referred to as the block reward schedule, determines how many XCH get created with every block that gets farmed on the network. 1 XCH, or 1 Chia, is equivalent to 1,000,000,000,000 or 1x10^12 or 1 trillion mojos. All consensus code uses mojos; XCH is used as a conveniently larger unit.

Strategic Reserve (pre-farm)

The first block of the network pays out 21 million XCH, divided into a 1/8 coin and a 7/8 coin, to an address that Chia Network Inc controls. The purpose and future usage of the funds is described in the business white paper.


All other coins go through a formula, where the block reward starts at 2 XCH per block, and halves every 3 years, a total of 4 times. The exact block at which halvings occur is 32 * 6 * 24 * 365 * 3 * x, where x is the index of the halving, starting at 1.

Years 0-2 (index 1): 2 XCH
Years 3-5 (index 2): 1 XCH
Years 6-8 (index 3): 0.5 XCH
Years 9-11 (index 4): 0.25 XCH
Years 12 and beyond (index 5): 0.125 XCH

After the start of year 12, 0.125 XCH is created in perpetuity.

Reward claims

In most cryptocurrencies, the creator of a block pays themselves based on the current block reward. In Chia, there is a slight difference -- block rewards are paid in a future block, depending on whether the farmer's block is a transaction block or not.

  • Option 1: If the farmer's block is a transaction block, the farmer will get paid on the next transaction block.
  • Option 2: If the farmer's block is not a transaction block, the farmer will get paid on the next transaction block after the next transaction block (next next).

Fees are also paid at the same time. Let's say a farmer creates a transaction block with 4.9 XCH of outputs, but 5 XCH of inputs (excluding reward claims). In this case, they will receive the remaining 0.1 XCH as a fee, plus their block reward, for a total of 2.1 XCH, in the next transaction block.

Therefore, Chia coins are never destroyed. In a given block, any portion of a spent coin that is not added into a new coin will be sent to the farmer as a fee. This topic is covered in more detail in the Mempool page.

Farmer vs Pool reward

The block reward is divided into two coins. The first coin goes to the farmer puzzle hash, which is specified by the farmer, and usually goes straight to the farmer's wallet. This contains 1/8 of the total value. This is referred to as the farmer coin.

The second coin, with 7/8 of the value, is called the pool coin. This coin can go to one of two places:

  1. If a pool public key is specified for the winning plot, then the reward is sent to the address signed by that public key. The pool public key is usually used for solo farming, and sent directly to the farmer's wallet.
  2. Otherwise, a pool address must be encoded into the plot, and the reward is sent to the address. The pool address is usually used along with the official Chia pooling protocol, and a pay-to-singleton address is used.

Rewards schedule

As detailed in the Business white paper, the network's emissions schedule is as follows (where year 0 is the first year of mainnet's existence):

Final Month
Block Reward
0 - 25 045 760March 20242 XCH1.75 XCH0.25 XCH
3 - 510 091 520March 20271 XCH0.875 XCH0.125 XCH
6 - 815 137 280March 20300.5 XCH0.4375 XCH0.0625 XCH
9 - 1120 183 040March 20330.25 XCH0.21875 XCH0.03125 XCH
12 - ∞0.125 XCH0.109375 XCH0.015625 XCH

Note that the rewards are adjusted according to a block height, not a timestamp. The Final Block column is therefore accurate as the last block before the rewards are modified. The months and years are only estimates based on when the block heights are likely to be reached.