What is the Bitcoin halving? Why Bitcoin's supply grows more slowly over time
By SendPay Business · · 2 min read
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The Bitcoin halving is a built-in rule that cuts the reward for mining new blocks in half. It happens every 210,000 blocks, which works out at roughly every four years, and it slows the rate at which new bitcoin is created.
Why it exists
Bitcoin's supply is capped at 21 million coins. Halvings spread the release of new coins over time, so fewer are created with each cycle until the cap is reached.
What it changes
Miners earn fewer new coins for each block, so they rely more on transaction fees over time. The halving does not change how many bitcoin anyone already holds.
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Halvings and price
People often talk about price rises after past halvings, but many other things move the market too. Past moves are no promise of what happens next, and crypto prices can fall as well as rise.
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Questions people ask
When is the next halving?
Enter a block height to see the reward and blocks left.
Bitcoin halving calculator →Read next
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This guide is general information, not legal or financial advice. SendPay Business is a technology company, not a bank, and does not take deposits; regulated services on the platforms are provided by licensed partners. Other companies named in this guide are reference points only and are not affiliated with SendPay Business.