What Is Bitcoin Halving?

Bitcoin (BTC) shares just one similarity with elections and leap years—its halving process occurs (roughly) every four years. The Bitcoin halving does not mean the price gets cut in half, so you might be wondering, “What is a Bitcoin halving?”

To limit the increase of the circulating supply of Bitcoin, the Bitcoin halving process reduces the amount of new Bitcoin introduced via the Bitcoin miners validating the network. Halving is a feature of a small number of cryptocurrencies including Bitcoin, Litecoin and others. If you are interested in learning more about how the Bitcoin halving works and what it means for the Bitcoin market, read on for a detailed explanation.

How Does Bitcoin Halving Work?

To ensure network security, Bitcoin incentivises a network of miners to validate transactions through a mining process. Bitcoin mining is the process of verifying and adding transaction records to the public ledger (known as the blockchain). Miners solve complex mathematical problems that allow them to chain together blocks of transactions (hence the blockchain). Bitcoin miners form a consensus of the transactions that belong on the blockchain through this proof-of-work consensus mechanism.

As the popularity of Bitcoin mining grew, the difficulty of these mathematical problems increased, and it became more expensive to participate in. As a result, Bitcoin mining is now mainly done by large firms or mining pools with specialised equipment.

For their efforts in adding blocks to the chain, miners are rewarded with a specific number of bitcoins. Bitcoin halvings reduce the rewards distributed per block by half after each halving takes place (roughly every four years). At the moment, miners receive 3.125 Bitcoins per verified block as a reward. This reward amount came into force on April 20th 2024 – the last halving. The next halving is expected in April 2028.

Bitcoin has a finite supply of 21 million coins, with approximately 19.7 million in circulation currently. The rate at which new bitcoins are created slows after each Bitcoin halving takes place until the maximum supply is reached, which many believe will be 2140.

Does the Bitcoin Halving Increase Price?

Given that only a finite amount of Bitcoin will ever exist, halvings play an important role in controlling its supply and inflation rate. The rate of inflation slows after each halving event as the supply increases slower, too. The circulating supply of Bitcoin is approximately 19 million coins as of December 2022, though it is lower when factoring in lost or forgotten wallets.

By decreasing the rate at which new Bitcoins enter circulation, additional supply becomes scarcer over time, which could make Bitcoin more valuable. So far, four halvings have occurred, and prices have generally risen exponentially afterward before dropping again. The last halving occurred on April 20, 2024, when Bitcoin was priced around $63,000. In the three months following, it traded within $10,000 above and below that benchmark figure. This bucks previous post-halving patterns, the last of which saw the asset skyrocket from around $8,800 to around $69,000, between April 2020 to November 2021. With the last halving still fresh, a similar parabolic phrase could still take hold.

Of course, the increase in the Bitcoin price could also be the result of other factors like the growing popularity, speculation, and wider usage of the cryptocurrency, often referred to as its network effects. A notable price-driver unique to the timing of this halving was the narrative around and launch of Bitcoin ETFs.

How Often Is Bitcoin Halved?

Bitcoin halving dates occur after every 210,000 blocks are mined, which happens roughly every four years. The block reward started at 50 Bitcoins in 2009, halved to 25 Bitcoins in 2012 and halved again to 12.5 in 2016. The last two halvings in 2020 & 2024 saw the rewards drop to 6.25 and 3.125 Bitcoins, respectively.

How Many Bitcoin Halvings Are Left?

So far, four halvings have already occurred: in 2012, 2016,2020 and 2024. Only 32 halving events will ever take place. Once the 32nd halving is complete in approximately 2140, no more new Bitcoin will be created.

The next halving will be in 2028, where the block reward will be 1.5625 bitcoins.

What Happens When There Is No Bitcoin Left to Mine

After the last ever halving occurs, block rewards will no longer exist. However, miners will continue to collect a share of the transaction fees, denominated in BTC, according to how many transactions take place within each block. While the total supply of Bitcoin will remain static after the final halving, the circulating supply can decrease as coins are lost or forgotten.

How Bitcoin Halving Effects the Crypto Market

The halving process is written into Bitcoin’s code and cannot be changed. As a result, the event has implications for investors, miners, and the cryptocurrency market as a whole.

Investors: Bitcoin halvings present an opportunity for investors to buy Bitcoins before new coins are created at a slower rate. If the price seems likely to increase, similar to during previous halvings, investors may look to speculate on a price hike and buy Bitcoin before the next Bitcoin halving takes place.

Miners: For miners, the halving means that they will receive fewer Bitcoins for their efforts. Miners might be forced to find more efficient ways of mining, which could lead to some miners switching to other cryptocurrencies or ceasing operations altogether. Some miners might sell Bitcoin to offset the decrease in rewards. However, the price of BTC plays a significant part in the value of the rewards collected by miners. At BTC’s 2nd all-time high in 2021, miners were collecting around $430k USD per block reward of 6.25 BTC.

Furthermore, miners don’t only receive a block reward for their network participation. For verifying transactions they receive a transaction fee as well, also denominated in BTC. This maintains their incentive to continue validating in the eventual absence of block rewards. Further still, even as they decrease, the expectation is transaction fees will offset the loss of/lower block reward, in dollar terms, as Bitcion’s value will continue rising over time.

While the halving may cause short-term volatility in Bitcoin prices, it is generally considered as a positive event for the cryptocurrency as it reduces supply, countering inflationary risks which are at the core of why Bitcion was invented.

Halving Offers Hope During Crypto Winter

Bitcoin halving is an event that happens roughly every four years where the mining reward for adding transactions to the blockchain is reduced by half. Given that Bitcoin has a maximum supply of 21 million coins, once they have been mined, no more will be created, and miners and validators will only earn transaction fees. Investors may use the halving as a reason to speculate on the increasing price of Bitcoin. The next Bitcoin halving will take place in April 2028.

For investors who believe in Bitcoin's long-term potential, this series of halvings presents a possible catalyst for prices to increase.

Frequently Asked Questions

Q. Can I make money from the BTC halving?

A. You can make money from the BTC halving if you buy before the price increases and sell after price appreciation. Your timing will determine whether you make money.

Q. Does Ethereum (ETH) have a halving event?

A. Ethereum does not have halving events that affect validator rewards.

Q. What is the Bitcoin halving date?

A. The next Bitcoin halving date will be in April 2028 after 105,000 Bitcoins have been mined since the last halving. You can estimate the next Bitcoin halving date.

Recommended reading: Timing the market vs. time in the market

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