A guide to bitcoin halving and its impact on market prices

Rebecca Cattlin
By :  ,  Financial Writer

What is bitcoin halving?

Bitcoin halving is an event that cuts bitcoin’s mining rewards in half and also halves the rate at which new coins enter circulation. Due to the way bitcoin works, a halving has a significant influence over the cryptocurrency’s supply and therefore the market price.

To explain why bitcoin halves, we first need to understand how the bitcoin network runs.

Bitcoin’s creator – pseudonymously known as Satoshi Nakamoto – set a limit on the number of bitcoin that could ever be produced at 21 million coins. So, like gold and silver, supply is finite which has contributed to the cryptocurrency’s high valuation.

The creation of new bitcoin – and cryptocurrencies in general – works through a process called mining. Individuals, known as miners, dedicate hardware to solving cryptographic equations in order to verify a single transaction. Once authenticated, these transactions are added as blocks to the blockchain and the miner is then rewarded with a certain number of bitcoin, which are added to the overall supply of BTC in the market.

Bitcoin rewards and halving events

The reward each miner gets for successfully authenticating a transaction is set. When bitcoin was first launched, each miner could earn 50 coins for each block that was processed. This would’ve been worth less than a dollar, but by today’s rates, you’d be looking at hundreds of thousands worth of BTC. But, as there is a set limit on bitcoin’s supply, there’s also a limit on how long each reward remained in place, and every four years the reward declines by 50%, in what’s become known as a halving event.

The original 50 BTC reward was only set for the first 210,000 blocks that were mined as by this point, over half the supply of bitcoin would exist. So, when the first halving came to take place, the reward was reduced 25, four years later it was reduced to 12.5 and so on.

In theory, the limit of 21 million coins will be hit by the year 2140, at which point the reward for mining will no longer exist. After that, miners will likely generate commissions for transactions – similar to the fees that banks charge on traditional transactions.

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When was the last bitcoin halving?

The last bitcoin halving was in 2020, at which time the reward for mining a block was reduced to 6.25 BTC. Bitcoin’s blockchain had reached 630,000 blocks, and the number of blocks produced daily was halved to 900.

When is the next bitcoin halving?

The next bitcoin halving is due to take place in Spring 2024 and will see the reward for miners decline to 3.125 BTC. At this point, bitcoin’s blockchain will have reached 840,000 blocks in total, and the daily supply of new BTC will drop to 450.

What is a bitcoin halving’s effect on price?

Bitcoin halving events have historically caused the market price to increase both before and after an event. This is because the supply of bitcoin is finite – with 18.7 million out of 21 million bitcoin currently in circulation. So, at each halving event, traders know that only half the previous number of bitcoin will be released per transaction, and this scarcity makes each BTC more valuable.

As mining is such an expensive process – requiring ever-increasing computer processing power – it means that the decreasing block reward makes it less and less appealing to contribute to the blockchain. Blocks are created every 10 minutes, but this will only continue as long as the miners are willing to process transactions to earn transaction fees and block rewards. So, the only way for miners to continue performing tasks is for the price of bitcoin to increase.

The effect bitcoin halving has on the market price was previously known as a ‘halving cycle’, as it was thought to come in three main phases. First, a long bull run in the lead up to the halving, then the price would increase immediately following the event, and finally, after enough time had passed, a market crash.

However, as the supply drops have become smaller and smaller with each halving event, they’ve had less dramatic impacts on the market price. The growth in bitcoin’s price is now predominantly driven by growing demand, rather than falling supply.

Let’s explore the most recent ‘halving cycle’ in 2020 as our case study.

What happens before a bitcoin halving?

Before a bitcoin halving, there’s typically a long bull run that pushes the price of each BTC up. If we look at the market 100 days before the May 11 2020 halving, this would put us at the start of February when BTC was trading at approximately $7715.8 each. During this period, the price of bitcoin dipped to a low of $3113 caused by the coronavirus market crash and then increased up to $6978 in the build-up to the halving.

BTC price pre-2020 halving 

What will happen in a bitcoin halving?

On the day of the bitcoin halving in 2020, the price of BTC fell from about $7026 at midnight to $6999 24 hours later. This halving didn’t cause an immediate price increase because the growth had begun so much earlier, combined with the negative impact that the coronavirus had on the market.

What happens to bitcoin after halving?

After a bitcoin halving, the price generally continues to rise for a sustained period of time. Looking at the 100 days following May 11 2020, we can see the price of BTC increased by 32.21% from $6978 up to $8977.

BTC price post-2020 halving 

After previous halvings, the price of bitcoin fell after a while. Most speculators agree that this pattern was caused by traders taking their profits from the move higher and the decline in media coverage of the event. However, the market crash didn’t ever happen after the 2020 bitcoin halving. As we’ve mentioned, this is because other factors were influencing the demand for bitcoin and so the price continued to rise. By April 2021, nearly a year after the halving, bitcoin’s price had hit over $46,000 and by November 2021 it had hit a new high of over $50,000.

Bitcoin halving dates

Here are the past and all the known future bitcoin halving dates (years) with the corresponding final BTC reward.

Bitcoin halving event

Bitcoin halving date

New blockchain reward


November 28 2012

25 BTC


July 9 2016

12.5 BTC


May 11 2020

6.25 BTC


Spring 2024

3.125 BTC



1.5625 BTC



0.78125 BTC



0.390625 BTC



0.1953125 BTC



0.09765625 BTC



0.048828125 BTC



0.024414063 BTC



0.012207031 BTC



0.006103516 BTC



0.003051758 BTC



0.001525879 BTC



0.000762939 BTC



0.00038147 BTC



0.000190735 BTC

In theory, there will only ever be 32 Bitcoin halving events. Once the final halving is completed, there will be no new bitcoin created, as its maximum supply of 21 million will have been reached.

How to trade a bitcoin halving

To start trading bitcoin with us, follow these steps:

  1. Open a FOREX.com account, or log in if you’re already a customer.
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Alternatively, you can learn more about our bitcoin offering or practise trading in a risk-free demo account.


How often is bitcoin halved?

Bitcoin is halved every four years; the event reduces the total number of BTC created every day by half and also reduces the reward for miners. A bitcoin halving event can have a significant impact on BTC’s price.

See live BTC prices.

Is bitcoin halving good?

Yes, ultimately if you own bitcoin then a halving is good for your holding. As the amount of bitcoin that can be mined with each block decreases, it means that there’s less supply available, which ultimately makes each bitcoin more valuable.

Learn how to trade BTC.

It’s worth noting though that the mining incentive also decreases, so eventually the only reason that people would continue mining is if they were paid an alternative fee.

Does Ethereum halve in the same way as bitcoin?

No, Ethereum doesn’t have a halving like bitcoin does. Additional ether are released during the mining process in the same way as BTC, but there is a constant 5 eth per block reward. As ether has no cap on supply, this doesn’t have to be reduced via a halving event.

Learn more about Ethereum.

Cryptocurrency Trading: Cryptocurrency CFDs are complex, extremely risky and usually highly speculative. Trading in Cryptocurrency CFDs involves a high risk of loss of funds over a short period of time due to high market volatility, execution issues and industry-specific disruptive events, including, but not limited to, discontinuation, regulatory bans and other malicious actors within cryptocurrency ecosystems. The pricing of Cryptocurrency CFDs might be derived from specific cryptocurrency exchanges, which means that the market depth is limited to what is available in the order books of such exchanges. These markets are relatively new and thus might be volatile and limited in terms of liquidity. The pricing engines of cryptocurrency exchanges may experience delays and/or interruptions which can be caused by numerous potential issues. Cryptocurrency CFD trading is not appropriate for all investors and therefore, any person wishing to trade in Cryptocurrency CFDs should have detailed and updated knowledge and expertise in these specific products. Clients should always be fully aware and understand the specific characteristics and risks related to these products as laid down in this section.

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