Cryptocurrencies are unregulated in the UK. Cryptocurrency profits may be subject to Capital Gains Tax. The value of investments is variable and can go down as well as up.
Ethereum is the second biggest cryptocurrency and the crypto that pioneered the broader use of blockchain as a technology.
Created in 2015 by 19-year-old prodigy Vitalik Buterin, Ethereum inverted the Bitcoin model, emphasising the blockchain over the currency itself. If blockchains could verify monetary transactions, then why not shipping manifests, airline bookings, website code or home ownership?
Ethereum’s biggest innovation in this respect was what Buterin termed ‘smart contracts’ – programmable and unalterable contracts that would auto-execute when certain conditions were met. This simple idea meant Ethereum could become the first true blockchain platform: a blockchain upon which decentralised apps and blockchains could be built.
Participants pay so-called “gas” fees to use the network, which are denominated in Ethereum’s native cryptocurrency, Ether (ETH). The more demand there is, the higher the gas fees.
While there’s no hardcoded upper limit on the amount of ETH to be created like there is with Bitcoin, Ethereum has introduced a mechanism that means a certain amount of ETH is burnt in every transaction, helping to reduce inflationary pressures. It’s predicted that over time this will lead to more ETH being destroyed than created.
The network is powered by a Proof-of-Stake consensus model that requires 99.95% less energy than Proof-of-Work models like Bitcoin. This means that people who hold a certain amount of ETH can stake it to help verify transactions, receiving newly issued ETH in the process.
Many of the biggest and most exciting projects in the crypto space are built on Ethereum. The platform’s ERC-20 standard is the architecture that powers more than 20 of the coins on CoinJar – including all the major DeFi projects – while NFTs (non-fungible tokens) came into being thanks to ERC-721.
While it’s still rare to find retailers that accept Ethereum as payment, with CoinJar Card you can use the Ethereum in your CoinJar account (or any of the other 50+ cryptos we offer) to make purchases anywhere that Mastercard is accepted.
The safest way to Buy Ethereum is through a trusted exchange with a proven track record. CoinJar is one of the world’s longest-running crypto exchanges and has been operating since 2013 with no unplanned downtime, security breaches or loss of customer funds. We are registered with the Financial Conduct Authority (for AML purposes) and work with some of the world’s largest payment providers, including Mastercard, Visa, Apple Pay and Google Pay.
Yes – with CoinJar Instant Buy you can buy ETH using any UK-issued Visa or Mastercard. We also offer support for Apple Pay and Google Pay.
The price of ETH in GBP is determined by the international Ethereum market – basically, the price to be found on cryptocurrency exchanges in the UK and all around the world. These prices tend to be the same (or very close) because any differences are smoothed out by arbitrage traders that buy at one exchange and sell at another.
Smart contracts are Ethereum’s key innovation over Bitcoin. In essence, smart contracts let you create agreements between parties or layers of code that are automatically executed when certain conditions are met. By using smart contracts, developers have built the vast and growing ecosystem of decentralised apps (dApps) increasingly being referred to as web3.
Ether (ETH) is the native currency of the Ethereum network. When people want to use the system or add information to the blockchain – for instance, by transferring funds, making a purchase or executing a smart contract – they have to pay a transaction cost in Ether.
Gas fees refer to the amount of ETH you need to pay in order to perform a transaction or execute a smart contract on the Ethereum network. Gas fees are set in ‘gwei’ (short for gigawei, with wei being the smallest possible denomination of Ether) and are determined by the demand for transaction space. The more demand, the higher the gas fees. During periods of high demand, gas fees can reach US$50 per transaction, but are more commonly around 50c.
CoinJar is one of the longest-running crypto exchanges in the UK and has been designed from the ground up with security and ease-of-use in mind. From the quick and intuitive sign-up process, to our lightning fast bank deposits and withdrawals, low fees starting at 0% (on CoinJar Exchange), and a user-friendly iOS and Android app, CoinJar is the ideal crypto exchange whether you’re buying crypto for the first time or an experienced investor.
CoinJar’s digital currency exchange services are operated by CoinJar UK Limited (company number 8905988), registered by the Financial Conduct Authority as a Cryptoasset Exchange Provider and Custodian Wallet Provider in the United Kingdom under the Money Laundering, Terrorist Financing and Transfer of Funds (Information on the Payer) Regulations 2017, as amended (Firm Reference No. 928767).
Cryptoassets carry high risk. Due to the potential volatility of the cryptoasset markets, the value of your investments may fall significantly and lead to total loss. Cryptoassets are complex and are unregulated in the UK, and you are unable to access the Financial Service Compensation Scheme or the Financial Ombudsman Service. We use third party banking, safekeeping and payment providers, and the failure of any of these providers could also lead to a loss of your assets. We recommend you obtain financial advice before making a decision to use your credit card to purchase cryptoassets or to invest in cryptoassets. Capital Gains Tax may be payable on profits.
CoinJar Card is a prepaid Mastercard® issued by EML Money DAC pursuant to licence by Mastercard. The e-money associated with your card is issued by EML Money DAC, authorised by the Central Bank of Ireland under the European Union (Payment Services) Regulations 2018 (Ref C95957). We recommend you consider the CoinJar Card Terms and Conditions before making any decision to acquire the product. Mastercard the circles design are registered trademarks of Mastercard International Incorporated.
Apple Pay and Apple Watch are trademarks of Apple Inc. Google Pay is a trademark of Google LLC.