If you have bought anything online in New Zealand, you have probably seen POLi: the option that takes you into what looks like your internet banking, confirms a payment, and returns you to the merchant with the transaction already recognised. For crypto purchases it has been a standard funding rail for years, and it is worth understanding what it actually does.
The problem it solves
Bank transfers in New Zealand are cheap and slow. Cards are fast and expensive. For a crypto platform, that gap is a genuine operational problem: a customer transfers money, the platform cannot see it for hours, and by the time the deposit is credited the price has moved.
Account-to-account payment services close the gap. They initiate the transfer from your bank account and confirm to the merchant immediately that it has been authorised. The money still travels as an ordinary bank payment, but the merchant does not have to wait to act on it. For a customer that means the deposit is credited in minutes rather than hours, at bank-transfer cost rather than card cost.
How the traditional model works, and the criticism
The original POLi mechanism is what generated the long-running argument. Historically you entered your internet banking credentials into a POLi-controlled interface, which then logged into your bank on your behalf and initiated the transfer — a technique commonly called screen scraping.
Consumer NZ has criticised this model for years on the basis that sharing internet banking credentials with a third party sits awkwardly with most banks' security terms and conditions. That is a reasonable concern and it is not resolved by the service being widely used.
The direction of travel
The industry has been moving toward bank-approved open banking APIs, where the bank itself authorises the payment and no credentials are shared with an intermediary. That is a materially better design. Where a payment flow keeps you inside your own bank's authenticated session rather than asking for credentials in a third-party interface, the original criticism does not apply.
What we can and cannot confirm
POLi continues to be supported in New Zealand through its local distributor, and merchant processing remains available here. Beyond that, the picture changes frequently: individual merchants add and drop the rail, and the technical implementation differs between integrations.
We are not going to state which specific crypto platforms currently support POLi, because that changes without announcement and a stale answer is worse than none. Open the funding page inside your own account and look. If the option is there, it is available to you; if it is not, use a bank transfer.
| Method | Cost to you | Credited in | Main consideration |
|---|---|---|---|
| POLi / account-to-account | Usually nil | Minutes | Check whether the flow shares credentials or uses a bank-approved API |
| Manual bank transfer | Nil to NZ$15 | Hours, business days | Reference must match exactly or it needs manual processing |
| Debit card | 2 – 3% | Instantly | You are paying a visible premium for speed |
| Credit card | 2 – 3% plus issuer fees | Instantly | May be treated as a cash advance — check first |
Practical points when using a bank rail
- Pay from an account in your own name. Third-party deposits are the single most common cause of frozen funds at every AML-registered platform.
- Copy the reference exactly. A mismatched reference can trigger a manual-processing fee as well as a delay of days.
- Check the URL and certificate before entering anything. Fake banking pages are a known phishing pattern and the payment flow is exactly where they appear.
- Confirm what appears on your statement. Knowing the descriptor in advance makes reconciliation and any bank conversation much easier.
- Do not use a shared or public device. Obvious, routinely ignored.
- Keep the confirmation. It forms part of your acquisition record for Inland Revenue.
Where your bank sits in this
A payment to a registered crypto platform through a bank rail is an ordinary transfer as far as your bank's systems are concerned. ANZ, Kiwibank and Westpac have all publicly indicated that personal cryptocurrency purchases are acceptable, with Westpac assessing case by case. BNZ has been most restrictive toward crypto businesses rather than customers. Our bank policies page sets out what each has said.
What triggers attention is pattern, not method. A first-ever five-figure transfer from an account that normally moves hundreds will get looked at whether it goes through POLi or a manual transfer. Build up gradually and keep the records.
Stablecoins as a different answer to the same problem
There is a more radical approach to moving New Zealand dollars around: put the dollar itself on a blockchain. NZDD, launched by Easy Crypto in 2023, is backed one-to-one by New Zealand dollars held in a bare trust, and in March 2026 the Financial Markets Authority determined that the non-yielding token is not a financial product under New Zealand law.
In principle that removes the banking rail from the middle of the transaction entirely. In practice, reporting suggests NZDD has not achieved broad traction, and you still need a bank rail to acquire it in the first place. It is worth understanding rather than relying on — our NZDD page covers where it stands.
The summary
Bank-based rails are the cheapest way to fund a crypto purchase in New Zealand and, for most people, the correct default. Whether you use POLi, an account-to-account service, or a plain manual transfer matters less than the fact that you are not using a card. Check what your platform offers, look at how the payment flow handles your credentials, pay from your own account, and keep the confirmation.