No jargon. No hype. Just what you need to understand how crypto works, how to hold it safely, and how to get started from New Zealand.
Cryptocurrency is digital money that runs on a decentralised network. There is no bank, no government, and no single company in charge. Transactions are recorded on a public ledger called the blockchain — an unalterable record that anyone can verify, maintained by thousands of computers around the world simultaneously.
The reason this matters: it means no one can freeze your account, reverse your transaction, or print more of the currency to inflate it away. The rules are set in code and the code does not have a boss.
A chain of transaction records, locked together cryptographically. Once written, it cannot be changed. Think of it as a public spreadsheet that thousands of people hold a copy of simultaneously.
Your private key is a unique code that proves you own your crypto. Whoever holds this key controls the funds. This is why "not your keys, not your crypto" is the most repeated phrase in this space.
A public address is like your bank account number — you share it with others to receive funds. Your private key is the password to that account. You share one, never the other.
No central server, no company running it. The network is maintained by thousands of independent computers globally. No single point of failure or control.
A crypto wallet does not actually "store" your crypto — your funds live on the blockchain. What a wallet stores is your private key, which is proof of ownership and the tool you use to send funds. There are three main custody tiers, and understanding them is the most important thing in this document.
When your crypto sits on an exchange like Swyftx or Binance, you do not hold the keys. The exchange does. Your balance is an IOU from them. If the exchange collapses, gets hacked, or freezes withdrawals, your funds are at risk. This is fine for short periods while actively trading, but not for holding.
A hot wallet is a software app where you hold your own private keys, but it runs on a device connected to the internet — your phone or browser. You are in control, which is a major step up from an exchange. However, because it is online, it is exposed to potential hacking, malware, or phishing attacks.
Phantom is a popular hot wallet. It runs as a browser extension or mobile app, supports Solana, Ethereum, and Bitcoin, and has a clean interface that is beginner-friendly. One important note: Phantom does not natively support XRP — more on that in the assets section.
A cold wallet is a physical device — typically the size of a USB drive — that stores your private keys completely offline. Even when you plug it into your computer to make a transaction, the private keys never leave the device. It signs transactions internally and only sends the signed result to the network.
Ledger is the most widely used cold wallet. It supports 5,000+ assets including USDT (ERC-20), XRP, and Ethereum. The Ledger Nano X (~NZD 260) has Bluetooth; the Nano S Plus (~NZD 100) is the budget option. Both do the job.
This is the gold standard. For anything beyond small amounts you plan to use frequently, cold storage is the correct move.
| Situation | Recommended Wallet | Why |
|---|---|---|
| Just getting started, small amounts | Phantom (Hot) | Easy to set up, good for learning |
| Holding SOL or ETH regularly | Phantom (Hot) | Connects directly to DeFi apps |
| Holding XRP | Ledger (Cold) | Phantom doesn't natively support XRP |
| Storing significant value long term | Ledger (Cold) | Offline keys, maximum security |
| Actively trading daily | Exchange + cold wallet combo | Trade on exchange, withdraw to Ledger after |
There are thousands of cryptocurrencies. Here are the three relevant to you explained simply.
1 USDT always equals 1 USD. It is a stablecoin — it does not fluctuate in price. You use it to hold value without being exposed to volatility, or as a neutral currency to buy other assets. Think of it as digital US dollars sitting in your crypto wallet.
XRP is a payments network designed for fast, low-cost international transfers. Transactions settle in 3 to 5 seconds for fractions of a cent. It is one of the most popular assets in New Zealand and has strong institutional backing globally.
Ethereum is the programmable blockchain that powers decentralised applications, smart contracts, and most of DeFi. It is also the network USDT runs on (ERC-20). ETH is the second largest cryptocurrency by market cap and the most used blockchain for building applications.
USDT runs on multiple blockchains. This is critical: you must send and receive USDT on the same network or the funds will not arrive. The most important ones to know:
| Network | Code | Fees | Use With Ledger? | Use With Phantom? |
|---|---|---|---|---|
| Ethereum | ERC-20 | Higher | Yes — correct choice | Yes |
| Solana | SPL | Very low | Yes (Solana app) | Yes — Phantom's home |
| Tron | TRC-20 | Low | Do not use | Do not use |
| BNB Chain | BEP-20 | Low | Do not use | Do not use |
Phantom does not natively support XRP. XRP runs on its own blockchain (the XRP Ledger), which is separate from Ethereum and Solana. To hold XRP in a personal wallet, you need a Ledger hardware wallet with the XRP app installed, or an XRP-native wallet like XUMM (now called Xaman).
Ethereum charges a small fee for every transaction on its network, called a gas fee. This fee is paid in ETH regardless of what you are sending. If you hold USDT on Ethereum (ERC-20) but have zero ETH in your wallet, you will not be able to move the USDT. Always keep a small amount of ETH — NZD 20 to 50 worth — to cover network fees.
In New Zealand you first convert NZD into crypto through a registered exchange. All exchanges operating here are required to register with the Department of Internal Affairs under the AML/CFT Act and will require identity verification before you can trade.
| Exchange | Best For | NZD Deposit | Supports XRP? | Notes |
|---|---|---|---|---|
| Swyftx | Beginners | Kiwibank direct | Yes | Largest NZ-focused platform, absorbed Easy Crypto in 2025. 450+ coins, low fees. |
| Independent Reserve | Regular buyers | Bank transfer | Yes | Australian exchange with strong NZ presence. Clean interface, good liquidity. |
| Binance | Advanced traders | Bank transfer | Yes | Largest global exchange. Widest range of assets and tools. More complex interface. |
| MEXC | Wider asset range | Via USDT first | Yes | Use referral code mexc-10NZX for fee benefits. Good for converting between assets. |
Before you buy anything, have your wallet ready. If using Phantom, download it from phantom.app and complete setup. If using Ledger, order the device, download Ledger Live, and set it up including installing the relevant asset apps. Have your receive addresses ready before you go near an exchange.
Sign up to Swyftx or your chosen exchange. Identity verification (KYC) is mandatory. Have your NZ drivers licence or passport ready, plus a proof of address (bank statement or utility bill dated within 3 months) and your phone for two-factor authentication. Verification usually takes minutes to 24 hours.
On Swyftx, deposit NZD directly via Kiwibank bank transfer. Use the account details provided in your Swyftx dashboard. Include your reference code exactly as shown. Allow 10 minutes to a few hours for funds to arrive depending on your bank.
Once your NZD balance shows in the exchange, select the asset you want to buy (USDT, XRP, or ETH) and enter the amount. You will see the exchange rate and any fees before confirming. Swyftx quotes prices in NZD which makes this straightforward.
Before withdrawing your full balance, send a small test amount — NZD 5 to 10 equivalent. Confirm it arrives in your wallet. This one step protects everything. An address typo or wrong network selection on a small test costs almost nothing; on a full balance it could cost everything.
Once the test arrives, withdraw the full amount to your wallet address. On the withdrawal screen, confirm the asset, the correct network, and your wallet address. For XRP, leave the destination tag blank unless withdrawing to another exchange. Withdrawals typically arrive within minutes on ETH and XRP networks.
An alternative approach: buy USDT first with NZD on Swyftx, then use your USDT balance to buy XRP and ETH via trading pairs (USDT/XRP, USDT/ETH). This can reduce the spread you pay by converting NZD once instead of multiple times, and gives you flexibility on MEXC to access a wider range of assets. On MEXC, use referral code mexc-10NZX.
Inland Revenue (IRD) treats cryptocurrency as property in New Zealand. This has practical implications. Buying crypto with NZD is generally not a taxable event on its own. However, selling, converting between assets, or earning crypto can trigger tax obligations depending on your intent and holding period.
The key question IRD asks is: did you acquire the crypto with the intention of selling or disposing of it? Most active crypto holders are considered to be trading, which means gains are taxable as income. This is a grey area that has evolved significantly in recent years and is best discussed with an accountant familiar with crypto taxation.
Run through every item below before moving funds of any significance.
This document has been prepared by 10NZ.X for educational purposes only. It does not constitute financial advice, investment advice, or any recommendation to buy, sell, or hold any cryptocurrency or digital asset. Cryptocurrency markets are highly volatile. The value of digital assets can decrease as well as increase and you may lose some or all of your investment. Past performance is not indicative of future results. Always conduct your own research and consider seeking independent financial and legal advice before making any investment decisions. 10NZ.X accepts no liability for any loss or damage arising from reliance on the information contained in this document.