How Many Numbers Are in an Australian Bank Account? (BSB + Account Number Explained for NZ)

An Australian bank account uses two key details: a 6-digit BSB and an account number that’s usually up to 9 digits long. If you’re sending money from New Zealand, you’ll normally enter these in separate fields. Copy both exactly from the recipient’s bank details, including any leading zeros.

At a glance

• A BSB is always 6 digits and identifies the Australian financial institution and branch.
• The account number identifies the individual account and is usually up to 9 digits long.
• Australia doesn’t use IBAN. International transfers may also require the receiving bank’s SWIFT/BIC code.
• Keep any leading zeros and check the recipient’s details carefully before sending.

Australian bank account format: BSB vs account number

If you’ve been wondering how many numbers are in an Australian bank account, the easiest way to understand the BSB vs account number difference is to think of them as two separate pieces of information rather than one long number.

The BSB number stands for Bank State Branch. t’s a six-digit code, assigned and maintained by AusPayNet, Australia’s payments regulator, used to identify an Australian financial institution and branch. You’ll often see it written with a hyphen, such as 062-000, although the way you enter it depends on the form you’re using.

The account number identifies the recipient’s individual bank account. Australian account numbers vary in length and are usually up to nine digits, so don’t assume a shorter number is missing digits just because it looks different from one you’ve used before.

The format can feel unfamiliar if you’re used to New Zealand bank details. In New Zealand, the bank, branch, account and suffix are commonly presented together. Australian details separate the BSB from the account number, so make sure each goes into the right field.

How many digits are in an Australian account number?

An Australian account number is usually up to nine digits long, while the BSB is always six digits. If you’re checking Australian account number digits before making a transfer, don’t worry if one account number looks shorter than another. The exact length can vary between financial institutions and account types, so copy the number exactly as the recipient provides it.

One detail that’s easy to miss is a leading zero. If an account number starts with 0, that zero is part of the number and shouldn’t be dropped. Also watch for spaces or punctuation that may have been copied from an email, PDF or invoice.

For example, if you’re given BSB 062-000 and account number 01234567, keep the 0 at the beginning of the account number. Don’t add digits simply to make the number longer.

Sending money from NZ to an Australian bank account

The exact fields you see will depend on your bank or money transfer provider, but the NZ to Australia transfer bank details you’ll generally need include the recipient’s BSB and account number. Depending on the type of transfer, you may need some additional information too. Have these details ready:

1. Recipient’s full name as shown on the account.
2. The 6-digit BSB.
3. The account number, copied exactly as supplied.
4. The receiving bank’s SWIFT/BIC code if your transfer provider asks for it.
5. Any other recipient information requested by the service you’re using.

Australia doesn’t use the IBAN system used in many European countries. If your provider asks for a SWIFT code for Australia, this is the SWIFT/BIC of the recipient’s Australian bank, not the same thing as their BSB. You won’t need one for every type of transfer, so follow the fields and instructions provided by the service you’re using.

If you’re using Remitly, follow the details requested during the transfer setup rather than trying to convert Australian bank details into a New Zealand format.

Common mistakes when entering Australian bank details

Most problems are simple data-entry mistakes. Before you send, look out for:

• Dropping a leading zero from the account number.
• Swapping or transposing two digits.
• Putting the BSB into the account number field, or vice versa.
• Entering a debit or credit card number instead of the bank account number.
• Adding or removing digits because the account number looks shorter than expected.
• Using old bank details from a previous invoice, email or saved payee.
• Assuming a PayID can be used when your NZ transfer service is asking for a BSB and account number.

If someone sends you new bank details unexpectedly, especially by email or message, verify them through a trusted contact method before paying. Changing bank details is a common feature of invoice and payment scams, so it’s worth confirming the numbers rather than relying on the message alone.

For a wider look at how an international money transfer works from end to end, our guide covers timing and fees as well.

Before you send

1. Check the recipient’s name.
2. Compare the BSB digit by digit.
3. Compare the account number digit by digit, including any leading zero.
4. Check whether a SWIFT/BIC is required for your transfer.
5. Make sure the details came from the recipient or another source you trust.

If you realise you’ve entered the wrong details after sending, contact your bank or transfer provider as soon as possible. Whether the money can be recovered depends on where it was sent and the payment process, so acting quickly is important.

FAQs about Australian bank account numbers

Why does the number of Australian account number digits vary?

Australian account numbers don’t all have the same length. They’re usually up to nine digits, and the exact format can depend on the financial institution and account. The BSB is different: it has a consistent six-digit format. Always use the account number exactly as your recipient provides it.

What’s the difference between a BSB and an account number?

A BSB is a six-digit code that identifies an Australian financial institution and branch, while the account number identifies the individual account receiving the money. For a standard bank transfer, these are separate details, so enter each one in the field your bank or transfer provider requests.

Do I include a leading zero in an Australian account number?

Yes. If the account number you’ve been given starts with a zero, keep it. Leading zeros can form part of the actual account number, so removing one may change the details you’re sending to. Copy the number exactly rather than shortening it or adding digits to match another account format.

Where can someone find their BSB and account number?

Australian customers can usually find their BSB and account number in their banking app, online banking or on a bank statement. If you’re sending money from New Zealand, ask the recipient to copy the details directly from their bank rather than typing them from memory.

Do I need an IBAN to send money to Australia?

No. Australia doesn’t use IBAN as its standard bank-account identifier. You’ll generally need the recipient’s BSB and account number, and an international transfer may also require the receiving bank’s SWIFT/BIC. If your form specifically requests an IBAN, follow the provider or receiving bank’s instructions.

What happens if I enter the wrong BSB or account number?

Contact your bank or transfer provider as soon as you notice the mistake. A payment may be delayed, rejected or sent to the wrong account depending on the details entered. Recovery isn’t guaranteed, so checking the BSB and account number carefully before confirming the transfer is the safer approach.

Can I use PayID for a transfer from New Zealand to Australia?

PayID lets participating Australian customers link details such as a mobile number, email address or ABN to an eligible account for supported payments. Whether you can use it from New Zealand depends on the service you’re sending through. If your transfer form asks for a BSB and account number, use those details instead.

Key takeaways

• An Australian BSB is 6 digits, while the account number is usually up to 9 digits.
• The BSB and account number are separate details, so don’t combine them unless your provider specifically instructs you to.
• Keep leading zeros and copy the recipient’s details exactly.
• Australia doesn’t use IBAN, although an international transfer may require a SWIFT/BIC.
• If bank details change unexpectedly, verify them before sending money.

Final check before you hit Send

For NZ senders, the main thing to remember is simple: Australian bank details normally use a 6-digit BSB plus a separate account number that’s usually up to nine digits. The fields may look different from the New Zealand account format you’re used to, but you shouldn’t need to reshape or pad the recipient’s numbers.

Before confirming a transfer, compare the BSB and account number with the recipient’s original bank details and follow the prompts from your bank or transfer provider. If you’re preparing for a move as well as a transfer, Remitly’s guide to moving to Australia from New Zealand covers more of the practical setup.

Last reviewed: November 2026