The Ultimate Guide to Bitcoin Halving: What You Need to Know

Concordex Labs
5 min readMar 15, 2024

Bitcoin halving, a critical event within the cryptocurrency space, holds profound implications for the Bitcoin network and the broader digital currency ecosystem. As Bitcoin continues to gain prominence as a store of value and investment asset, understanding the intricacies of halving becomes increasingly essential for investors, miners, and enthusiasts alike.

In this comprehensive guide, we delve deep into the concept of Bitcoin halving, exploring its significance, mechanics, and impact on various facets of the cryptocurrency landscape. So let’s get started!

What Is Bitcoin Halving?

Bitcoin halving marks a significant event where the mining reward for Bitcoin is halved. In the context of Bitcoin, the term “halving” refers to the reduction in the number of tokens rewarded, aiming to simulate diminishing returns and potentially stimulate demand. It occurs approximately every four years as the blockchain network opens another 210,000 blocks, adhering to the standard set by the blockchain’s creators to gradually decrease the cryptocurrency’s issuance rate.

The inaugural reward was 50 bitcoins, and subsequent halving events unfolded as follows:

  • November 28, 2012: Reduced to 25 bitcoins
  • July 9, 2016: Decreased to 12.5 bitcoins
  • May 11, 2020: Halved to 6.25 bitcoins

The next halving is anticipated in April 2024, when the block reward will further reduce to 3.125 BTC. As of March 2024, approximately 19.65 million bitcoins were in circulation, leaving around 1.35 million bitcoins yet to be mined via rewards.

How Does Bitcoin Halving Work?

To grasp the mechanics of halving, it’s essential to first comprehend the concept of Bitcoin mining. Bitcoin operates on a proof-of-work (PoW) system, where validating transaction data involves solving encrypted hashes — a process demanding time and energy, serving as evidence of work completed.

Once a block accumulates transactions, it is finalized and entered into a mining queue, where miners compete to solve the block’s cryptographic puzzle first. Upon verifying the legitimacy of transactions within a block, miners proceed to initiate a new block and receive a reward for their efforts. This sequence creates a chain of blocks, forming the blockchain — a ledger of transactional data.

During each halving event, the reward granted to these network participants is halved, thereby reducing the rate at which new bitcoins are introduced into circulation. For context, as of March 2024, over 19 million bitcoins have been mined, leaving approximately 2 million bitcoins yet to be virtually “mined.”

Why Is Bitcoin Halving Significant?

Bitcoin halving holds importance for several reasons. Primarily, by reducing the issuance of new bitcoins, halving increases the likelihood of Bitcoin’s value appreciation, assuming consistent demand levels. This stands in stark contrast to fiat currencies, which typically depreciate over time due to inflation. In essence, halving is a mechanism embedded in Bitcoin’s protocol to uphold scarcity, a key factor driving its desirability among millions worldwide.

However, scarcity is not the sole reason for the importance of Bitcoin halving. The event also garnered significant media coverage, drawing attention to cryptocurrencies and Bitcoin. This heightened visibility attracts potential new investors who may not have previously considered involvement in cryptocurrencies. Consequently, the surge in interest often leads to increased demand for Bitcoin as both new and existing investors seek to capitalize on potential price fluctuations triggered by the halving event.

The Impact of Bitcoin Halving

In this section, we’ll delve into the far-reaching effects of Bitcoin halving, examining its impact on various aspects of the cryptocurrency ecosystem.

Inflation: Halving the reward is a strategic response to inflation concerns. Bitcoin Halving aims to mitigate potential inflationary pressures on Bitcoin by reducing the reward and ensuring scarcity.

Investing: Bitcoin’s original purpose was not as an investment vehicle but rather as a decentralized payment method aiming to eliminate reliance on regulatory agencies or intermediaries in transactions. However, Bitcoin gained traction among investors once its potential for gains was recognized. The influx of investors into this new asset class created a demand that the cryptocurrency’s creators may not have initially anticipated. For investors, a halving signifies a reduction in the supply of new coins, with the potential for increased investment value if historical patterns persist.

Demand: As a halving event decreases the supply of new Bitcoins, the demand for them typically rises. This trend is evident when examining Bitcoin’s price following past halving events — it has consistently experienced an uptick.

Mining: Historically, receiving new Bitcoin rewards has been lucrative for miners. However, each halving reduces mining rewards, potentially diminishing profitability if prices remain stagnant or decline. Large-scale mining operations require substantial investments in money and energy to maintain competitiveness. These operations entail ongoing maintenance, upgrades, and staffing to manage equipment and facilities. Smaller miners face greater challenges with reduced rewards. Even if prices increase, those parts of mining pools may see diminished rewards due to halved rewards. Maintaining profitability amidst halvings relies on significant market shifts unlikely to double Bitcoin’s price overnight.

Why Do Halvings Occur Less Frequently than Every 4 Years?

The Bitcoin mining algorithm aims to discover new blocks approximately every 10 minutes. However, the time taken for each block can vary, sometimes exceeding or falling short of the 10-minute target. Consequently, this variance affects the duration required to reach the next halving milestone. For instance, if blocks consistently average 9.66 minutes for mining, it would take approximately 1,409 days to mine the requisite 210,000 blocks.


A Bitcoin halving reduces the rate at which new Bitcoins enter circulation by half. This rewards system is anticipated to persist until the year 2140, reaching the proposed limit of 21 million bitcoins. Initially, in 2009, each mined block carried a reward of 50 bitcoins. Subsequent halvings decreased this to 25, then 12.5, and eventually to 6.25 bitcoins per block as of May 11, 2020, with expectations of another halving in April 2024.

The Bitcoin halving event holds significant implications for its network. Miners may experience consolidation within their ranks, with individual miners and small operations either exiting the mining ecosystem or being absorbed by larger entities.

About Concordex

Concordex is a cutting-edge Decentralised Exchange (DEX) that operates on the Concordium Blockchain. Renowned for emphasising institutional-grade security, transparency, and user-centric design, Concordex offers various services, including staking, swapping, and perpetual trading. With a mission to bridge the divide between traditional finance and decentralised systems, it offers users an unparalleled trading environment.

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Institutional-Grade Decentralized Exchange on the Concordium Blockchain