Key Takeaways
- Self-custody means you hold the private keys to your Bitcoin, so you have full control and full responsibility.
- Bitcoin ETNs and similar exchange traded products give you price exposure through a standard brokerage account, without managing a wallet.
- Your choice usually comes down to your technical confidence, how you prefer to manage risk, and whether you want to use Bitcoin or simply invest in its price.

The scenario: You are an Irish investor deciding how to buy Bitcoin. You are in Dublin, Galway, or anywhere in Ireland, and you have decided to buy crypto.
You open your laptop and quickly see two main options. One route is to download a dedicated crypto app, buy Bitcoin, then move it to a secure wallet that you control. The other is to log in to your usual stock brokerage account, and buy a Bitcoin-linked product that appears beside your existing shares.
Both routes give you exposure to Bitcoin’s price movements. However, the legal structure, risk profile, and practical uses of each approach are different and should be understood before you commit any money.
Option 1: Buying and holding Bitcoin with self-custody
When people talk about “owning Bitcoin directly”, they usually mean self-custody. You buy Bitcoin using a cryptocurrency service, then move it to a wallet where only you control the keys.
How it works
You first create an account with a cryptocurrency exchange or similar service that supports euro deposits.
After buying Bitcoin with EUR, you withdraw it to a non-custodial wallet. This can be a hardware wallet (a physical device) or a software wallet (an app). The wallet gives you a seed phrase, usually 12 or 24 words, which acts as the master backup key to your funds.
Anyone with that phrase can access and move your Bitcoin, so it must be stored securely and privately.
The advantages
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Control and independence
You are not relying on a bank, broker, or exchange to hold your Bitcoin. If a service provider fails, your Bitcoin should still be safe, as it is recorded on the blockchain and controlled by your private keys. -
Around-the-clock transfers
The Bitcoin network operates all year and at all hours. You can move or sell your Bitcoin at any time, subject to the services you use and the network conditions. -
Practical use cases
With self-custody, you can spend or send Bitcoin directly, use it for cross-border transfers, or interact with certain digital services, such as decentralised finance (DeFi) applications that support Bitcoin.
The challenges
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Security on your shoulders
If you lose your seed phrase, or if someone tricks you into revealing it, your Bitcoin may be permanently lost. There is no central support centre that can reset your password or restore access. -
Technical learning curve
You need to understand basic concepts such as public addresses, transaction fees, confirmation times, and secure backup practices. Many people can learn this, but it does require time, care, and patience. -
Regulatory protections
When you hold assets directly on-chain in your own wallet, you are usually outside traditional investor protection schemes. You still benefit from general consumer and fraud laws, but they may not cover mistakes you make yourself, such as sending funds to the wrong address.
Option 2: Bitcoin ETNs and other exchange-traded products
In Ireland and across much of Europe, retail investors commonly access Bitcoin through exchange traded notes (ETNs) or broader exchange traded products (ETPs), rather than spot ETFs.
These products are listed on regulated exchanges and can usually be bought through standard brokerage accounts.
How it works
An ETN is a type of debt security that is designed to follow the value of an underlying asset, such as Bitcoin.
When you buy a Bitcoin ETN, you are not receiving Bitcoin in your own wallet. Instead, you are buying a note issued by a company, and that company promises to deliver the performance of Bitcoin, usually after deducting fees.
Many well-known Bitcoin ETNs and ETPs are described as “physically backed”. This usually means the issuer holds Bitcoin with a professional custodian to support the value of the product. You should always check the specific documentation, including the prospectus and Key Information Document (KID), to see how the product is structured.
The advantages
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Familiar investment format
You buy and sell these instruments in the same way you trade shares or ETFs, through a regulated brokerage account. The interfaces, statements, and order types will usually feel familiar. -
Professional custody
You do not handle private keys or seed phrases. The issuer uses regulated custodians and service providers to store the underlying Bitcoin and operate the product. -
Integrated reporting and taxation
Because the ETN or ETP sits inside your brokerage account, your annual statements often include all your holdings in a single place. This can make it easier to track your gains and losses for Irish tax reporting, compared with calculating each on-chain trade or transfer yourself.
The challenges
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Issuer and counterparty risk
An ETN is usually a debt obligation of the issuer. If the issuer runs into financial trouble or defaults, you may be treated as a creditor, even if the product is described as fully backed. The actual risk level depends on the product’s legal structure and safeguards. -
Limited trading hours
These products generally trade during stock exchange hours only. If Bitcoin’s price moves sharply overnight or over a weekend, you may not be able to react until the market opens, and the ETN price can gap up or down. -
Ongoing product fees
ETNs and ETPs charge an annual management fee, often in the range of 0.5% to 2% of the invested amount. This fee is usually taken from the product’s assets, so your returns will be slightly lower than the raw Bitcoin price performance. -
No direct use of Bitcoin
With an ETN, you cannot send Bitcoin to another person, use it in an on-chain service, or move it to your own wallet. You only have exposure to its price, not to the asset itself.
Real-life examples
The names and situations below are simplified, but they reflect common choices faced by Irish investors.
The self-custody approach
Ciara in Cork wants to hold Bitcoin for at least ten years.
She signs up to a regulated crypto service that accepts euro deposits and buys €5,000 worth of Bitcoin. As soon as she is comfortable, she moves the Bitcoin to a hardware wallet she bought from the official manufacturer’s website.
She writes the 24-word recovery phrase on paper, stores one copy in a home safe, and another in a secure location outside her home. Ciara holds the Bitcoin directly and can later move it, spend it, or use it as she wishes, as long as she keeps her keys and backups safe.
The brokerage approach
Liam in Limerick already has a diversified portfolio on a platform.
He is interested in Bitcoin’s price, but he does not want to deal with hardware wallets or the risk of misplacing a seed phrase. Through his broker’s search tool, he finds a EUR-denominated, physically backed Bitcoin ETP.
He invests €5,000 into the product. His brokerage statement shows a position in the Bitcoin ETP, next to his equity and ETF holdings. Liam never handles Bitcoin directly, but he participates in its price movements and can buy or sell during market hours.
Risks, red flags, and security considerations
No matter which path you choose, you should treat Bitcoin as a high-risk, volatile asset. You can lose some or all of the money you invest.
It is important to understand where your main risks lie and how to reduce them where possible.
For self-custody holders
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Phishing and social engineering
Be extremely cautious with emails, messages, or websites that ask for your seed phrase or private key. Legitimate wallet providers, exchanges, and support agents do not need and should not request your recovery phrase. -
Device loss or failure
Hardware wallets can be lost, stolen, or damaged. Your recovery phrase is the real backup. If you do not have it stored securely and separately from your device, a simple accident can result in permanent loss of funds. -
Fake apps and websites
Only download wallet apps from official sources, and verify URLs carefully. Fake apps and cloned websites are a common source of theft in crypto.
For ETNs and ETPs
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Synthetic vs physically backed products
Some notes are “synthetic” and use derivatives such as swaps to replicate Bitcoin’s returns, instead of holding the asset. These structures can introduce extra risks. Always read the KID and prospectus carefully to understand whether the product holds Bitcoin directly and how that Bitcoin is safeguarded. -
Tracking differences
The ETN price may not match the Bitcoin spot price exactly. Fees, trading volumes, and market conditions can lead to small differences, known as tracking error. At times, the product can trade at a premium or discount to the value of the underlying Bitcoin. -
Liquidity and market depth
Some ETNs or ETPs have lower trading volumes. Large orders may move the price, or you may face wider bid-ask spreads, which increases your trading cost. -
Regulatory and product changes
Issuers can change certain features, delist products, or merge them into other products, subject to regulation and investor disclosures. You should review communications from your broker and from the issuer, particularly if you hold the product for many years.
Summary: which approach might suit you?
There is no single approach that works for everyone. Each method has trade-offs.
Self-custody might appeal to you if:
- You are willing to learn how Bitcoin wallets work
- You value direct control and the ability to send or receive Bitcoin at any time
- You understand that you alone are responsible for keeping your keys and backups safe.
Bitcoin ETNs and similar products might be more suitable if:
- You mainly want investment exposure to Bitcoin’s price
- You prefer to keep your holdings in a regulated brokerage account
- You do not want to manage private keys or store recovery phrases.
Many investors also choose a mix, for example holding some Bitcoin in self-custody and some via listed products. Whatever you decide, only invest money you can afford to lose, and take time to understand both the product and the risks before you commit funds.

CoinJar
CoinJar is one of the longest-running cryptocurrency exchanges in the world. Since 2013, we’ve helped hundreds of thousands of people worldwide to buy, sell and spend billions of dollars in Bitcoin, Ethereum and dozens of other cryptocurrencies.
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