Bitcoin Cash (BCH): What It Is & How to Buy

Bitcoin Cash is a decentralized, open-source cryptocurrency that was created on 1 August 2017 through a hard fork of the Bitcoin blockchain. A hard fork is a permanent split: up to a specific block, BCH and BTC shared an identical transaction history, so anyone holding bitcoin at the moment of the fork also received an equal amount of Bitcoin Cash. After that block, the two networks went their separate ways with different rules, developers, and communities.

The split grew out of a long-running disagreement often called the "block size debate." Bitcoin limits each block of transactions to a small size, which keeps the network easy to run on modest hardware but causes fees to spike and confirmations to slow down when the network is busy. One group wanted to keep Bitcoin's blocks small and scale mainly through separate layers; another wanted to enlarge the blocks so more transactions fit on the main chain directly. The second group launched Bitcoin Cash, increasing the block size limit so the network could handle more on-chain payments at lower cost.

How the network works

Technically, Bitcoin Cash is very similar to Bitcoin under the hood. It uses the same SHA-256 proof-of-work mining algorithm, the same roughly ten-minute target between blocks, and the same hard cap of 21 million coins. New BCH is created as a reward to miners, and that reward is cut in half roughly every four years (every 210,000 blocks) in an event known as a halving. The most recent BCH halving took place in April 2024, reducing the block reward to 3.125 BCH; the next is expected around 2028.

The most visible difference is capacity. Bitcoin Cash's block size limit is much larger than Bitcoin's — on the order of 32 MB versus Bitcoin's roughly 1 MB base block — which lets it confirm many more transactions per block and keeps typical fees to a fraction of a cent. To keep block production steady, BCH also uses its own difficulty-adjustment algorithm that retargets after every block rather than every two weeks.

Smart contracts and CashTokens

Bitcoin Cash is no longer just a payments coin. A 2023 upgrade called CashTokens added native support for issuing tokens directly on the BCH blockchain — both fungible tokens (like a stablecoin or project token) and non-fungible tokens (NFTs). Subsequent upgrades have expanded the network's smart-contract capabilities, enabling more complex on-chain applications while keeping the security model of Bitcoin's UTXO design. The result is a small but growing ecosystem of tokens and decentralized apps built on top of cheap, fast BCH transactions.

Because Bitcoin Cash came directly from Bitcoin, the two are easy to confuse — but they are separate coins with different priorities. The simplest way to think about it: Bitcoin (BTC) optimizes for maximum security and decentralization and is widely treated as "digital gold," while Bitcoin Cash (BCH) optimizes for cheap, high-volume payments and aims to be usable "digital cash." They are not interchangeable; sending BCH to a BTC address (or vice versa) can result in lost funds.

The core trade-off

The disagreement behind the fork is really about how a blockchain should scale. Larger blocks let more transactions settle directly on the main chain for low fees, which is good for spending. But larger blocks also make the ledger grow faster and can make running a full node more demanding, which some argue weakens decentralization over time. Bitcoin chose to keep blocks small and push most everyday activity to separate layers; Bitcoin Cash chose to scale on the base chain itself. Neither approach is universally "correct" — they reflect different beliefs about what matters most.

It is also worth knowing that Bitcoin Cash has itself been forked. In 2018, a faction split off to create Bitcoin SV (BSV). So "the Bitcoin family" today includes BTC, BCH, and BSV, among others — all sharing a common ancestor but pursuing different visions.

Buying Bitcoin Cash works much like buying any major cryptocurrency. The steps that matter most are choosing a trustworthy place to buy and deciding where the coins ultimately live. The process below is neutral and applies to most reputable services; any platform categories named are examples, not endorsements.

Step 1: Choose a reputable exchange

BCH is widely listed, so most people start with a centralized exchange that operates in their country and complies with local regulation. Look for a solid operating history, transparent fees, proof of reserves or audits, and strong security. Compare the all-in cost — trading fee plus the spread between buy and sell prices — rather than the headline fee alone.

Step 2: Create an account and complete KYC

Regulated exchanges require identity verification (Know Your Customer, or KYC): usually your name, address, and a government-issued ID. This is standard practice and helps protect against fraud. Turn on two-factor authentication (2FA) using an authenticator app rather than SMS where possible.

Step 3: Fund the account and buy BCH

Deposit funds by bank transfer, debit or credit card, or a supported payment service. Cards and instant-buy options are convenient but usually cost more than a bank transfer. Once funded, select BCH, enter the amount, review the fees, and confirm. You can buy a small fraction of one coin — there is no need to purchase a whole BCH.

Step 4: Decide where to store it

Leaving BCH on an exchange is convenient but means a third party holds the private keys — the common warning is "not your keys, not your coins." For amounts you care about, consider moving BCH into a wallet you control:

• Hot wallets (mobile and desktop software wallets) stay connected to the internet. They are handy for spending and everyday use but more exposed to malware and phishing.
• Cold / hardware wallets keep your private keys offline on a dedicated device. They are the safer choice for larger balances and longer-term holdings. Most major hardware wallets support BCH.

Step 5: Withdraw to self-custody (optional but recommended)

To take custody, withdraw BCH from the exchange to your wallet's Bitcoin Cash address. Always send a small test amount first, double-check the address character by character, and make sure you are sending on the Bitcoin Cash network — not Bitcoin or another chain. BCH uses a "CashAddr" address format (often starting with bitcoincash:) to help avoid confusion with BTC addresses. Whatever wallet you choose, write down the recovery phrase, store it offline in more than one secure place, and never share it or enter it on a website. Anyone with that phrase can take your coins.

Bitcoin Cash was designed around a single practical idea — money you can actually spend — and its low fees shape what it is used for. The following are common, real-world uses rather than guarantees of adoption.

• Everyday payments. The most prominent use case is buying goods and services. Because a typical BCH transaction costs a fraction of a cent and confirms quickly, it is practical for small, frequent purchases that would be uneconomical on higher-fee networks. Many point-of-sale and online checkout tools support BCH, often via a simple QR code scan.
• Remittances and cross-border transfers. Sending money internationally through traditional services can be slow and expensive. BCH lets people move value across borders directly, with fees that stay low regardless of the amount, which can be useful where banking access is limited or costly.
• Micropayments and tipping. Tiny payments — tipping a creator, paying per article, or in-app purchases — are difficult when fees exceed the payment itself. BCH's near-zero fees make these small transfers feasible.
• Merchant acceptance. Businesses can accept BCH to reach crypto-paying customers and to avoid the chargeback risk associated with card payments, since blockchain transactions are final once confirmed. Payment processors can convert BCH to local currency automatically if a merchant prefers not to hold crypto.
• Tokens and apps via CashTokens. Since the CashTokens upgrade, developers can issue fungible tokens and NFTs and build decentralized applications directly on Bitcoin Cash, creating uses beyond simple payments — for example, tokenized assets or on-chain games — while keeping fees low.

Limitations to keep in mind

BCH is not a stablecoin: its price moves with the wider crypto market, so the local-currency value of a payment can change between sending and spending. Merchant acceptance, while real, is narrower than for major payment cards, and availability varies by region. As with any crypto, you are responsible for your own security and for understanding the tax and legal treatment of payments where you live. None of this is financial, legal, or tax advice — confirm the rules that apply to you with a qualified professional or official sources.

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