Managing Balance Transfers for Existing NAB Customers

Requesting a Balance Transfer on Your Existing NAB Account

Olesya Krasavtseva
Fact-checked by Olesya Krasavtseva
Content Editor at Prostobank Consulting Prostobank Consulting Logo
Updated: 01.09.2026
Table of Contents

Requesting a Balance Transfer on Your Existing Card

If you already hold a NAB credit card, you may be eligible to move high-interest debt from a non-NAB credit or store card to your existing NAB account. A balance transfer allows you to consolidate debt onto a single card, potentially benefiting from a promotional interest rate for a fixed period. This is often a straightforward process managed directly through your digital banking profile, without the need to apply for an entirely new credit facility.

It is important to understand that balance transfers must involve a different financial institution; you cannot transfer a balance between two NAB cards. When you submit your request, NAB uses the BPAY system to clear the debt on your nominated non-NAB card. Once the request is processed, the balance is debited to your NAB card, and you then manage your repayments through your regular NAB statement.

Key Information and Requirements

Category Details
Available Methods NAB app (recommended) or NAB Internet Banking.
Processing Time Typically within 3 business days of your request.
Eligibility Available for existing NAB credit cardholders with sufficient available credit.
Key Requirements Valid non-NAB card details, BPAY reference number, and sufficient available credit limit.

How to Request a Balance Transfer on an Existing NAB Credit Card

1. Using the NAB App:

  • Open the NAB App and log in.
  • Navigate to the Cards section.
  • Select the credit card you wish to use for the balance transfer.
  • Go to Usage controls.
  • Tap on Request a balance transfer and follow the prompts to complete your request.

2. Using NAB Internet Banking:

  • Log in to NAB Internet Banking.
  • Navigate to the Cards menu.
  • Select the credit card you wish to use for the balance transfer.
  • In the Manage your card section, select Request a balance transfer and follow the prompts.

Troubleshooting Balance Transfer Requests

If you encounter issues during the request process, here is how to resolve them.

MFA / Login Issues

  • Cause: You cannot authorize the transfer request because you are not receiving the required SMS security code.
  • Simple Fix: Ensure your registered mobile number is current and your device has a stable cellular connection.
  • Fallback Action: Call NAB support on 13 22 65 to verify your identity and have a representative assist you with the request.

Browser or App Errors

  • Cause: Cached data or an outdated app version can cause the 'Request a balance transfer' menu to fail or display an error.
  • Simple Fix: Update the NAB app to the latest version via the App Store or Google Play, or clear your web browser's cookies if using Internet Banking.
  • Fallback Action: Attempt the request on a different device or use the desktop version of Internet Banking.

Locked Account / ID / Access Issues

  • Cause: Attempting to transfer a balance that exceeds your available credit limit, or repeated incorrect authentication attempts, will lock the request.
  • Simple Fix: Check your 'available credit' in the app to ensure your limit can accommodate the transfer amount before re-submitting.
  • Fallback Action: If the account remains locked or the limit is insufficient, contact NAB to discuss your options.

Pro-Tip: To avoid interest charges on your regular purchases, ensure you pay the "interest-free days payment" amount shown on your monthly statement in full by the due date. While a balance transfer is active, failing to pay this specific amount can cause you to lose interest-free days on any new retail purchases you make.

Frequently Asked Questions

Q: Can I transfer a balance if I don't have enough available credit?
No, if your balance transfer request exceeds your available credit limit, the request will be declined by the system. The bank requires you to have sufficient room on your card to accommodate both the transferred amount and any associated balance transfer fees. One limitation is that you cannot initiate a transfer for an amount larger than your current available limit. Your practical next step is to make a payment to your NAB card to increase your available credit, or contact the bank to discuss a credit limit increase.

Q: Why does the bank need the BPAY reference number?
NAB uses the BPAY system to securely process balance transfers to other financial institutions. The BPAY reference number is unique to your non-NAB card and ensures the funds reach the correct account, preventing payment errors. One exception is that if the non-NAB card does not support BPAY or uses a different reference format, the bank may not be able to process the transfer electronically. Your practical next step is to confirm the exact BPAY biller code and reference number provided on your most recent statement from the other financial institution.

Official Bank Information

NAB

Support: 13 22 65

SWIFT Code: NATAAU33

Video Guides

Watch our expert video reviews to navigate Australian banking with ease.

Bank's Services and Products

Find and compare the best banking products tailored to your financial goals.

Personal Banking

Personal credit cards

Show details
Purchase interest rate: 20,99% p.a.Cash advance rate: 21,74% p.a.Balance transfer offer: 0% p.a. for 12 monthsNew customer cashback: 250 AUD after spending 1500 AUD within 90 daysExisting customer cashback: 350 AUD after spending 1500 AUD within 90 daysUp to 44 interestfree days on purchases

Personal debit cards

Show details
Must be an Australian resident for tax purposes Must be 18 years of age or older Earn 1,00% cash back on contactless purchases (up to 10 AUD per month) Includes extensive complimentary insurances: International and Domestic travel, Rental vehicle excess, Purchase protection, and Extended warranty To activate travel insurance, at least 500 AUD of prepaid travel costs must be charged to the card Provides access to a 24/7 concierge service and Visa premium offers

Personal savings accounts

Show details
Total introductory rate of 5,00% p.a. is available for the first four monthsIntroductory rate applies to customers who have not held a NAB iSaver in the last 12 monthsStandard variable rate of 1,55% p.a. applies after the fourmonth periodBonus interest applies to balances up to 20000000 AUDInterest rate remains unaffected by withdrawals

Personal transaction accounts

Show details
Includes choice between NAB Visa Debit ($0 monthly card fee) or NAB Platinum Visa Debit ($10 monthly card fee)NAB Goodies provides personalised cash back offers via the appDigital wallet support for immediate payments before card arrivalStandard card includes access to Visa Entertainment and NAB Defence protectionPlatinum version offers 0% international transaction fees and complimentary insurances

Loans & Mortgages

Personal Car loans

Show details
Provides a 0,75% p.a. interest rate discount specifically for eligible allelectric and plugin hybrid cars The vehicle must be used as security for the loan Applicant must be an existing personal NAB customer registered for Internet Banking and aged 21 years or older Available to sole borrowers only No redraw facility is available from extra funds

Personal Home Loans

Show details
Allows linking of up to 10 offset accounts to an eligible variable rate loan Flexible repayment options including weekly, fortnightly, or monthly schedules Final interest rate is personalized and may depend on the Loan to Value Ratio (LVR)

Personal loans

Show details
Fixed interest rate and repayments for the entire loan termBorrowing limit up to 55000 AUDRedraw option is not available for fixed rate loansRepayments required via direct debitChoice of weekly, fortnightly, or monthly repayment cycles

Business Solutions

Business accounts

Show details
Designed for businesses that mostly transact online and make few banker assisted transactions No free eligible transactions allowance for manual or assisted transactions Transaction data can be integrated directly into accounting packages like Xero and MYOB

Business car loans

Show details
Operates as a chattel mortgage where the purchased vehicle or equipment acts as the sole security against the loan Allows businesses to set a balloon payment at the end of the term to lower monthly repayment obligations Eligible assets include cars, trucks, agricultural machinery, and specialized green equipment like electric vehicles and solar panels Facility limits can be established to purchase multiple assets without applying for finance multiple times

Business credit cards

Show details
Special introductory offer: 0% p.a. on purchases for 12 months Up to 55 interestfree days on business purchases (excludes cash advances) Includes complimentary NAB Commercial Cards Unauthorised Transaction Insurance Allows attaching multiple cards to one facility with individual credit limits Minimum facility credit limit is 5000 AUD

Business loans

Show details
No physical assets required for security Repayments consist of principal and interest Provides an instant decision and fast access to funds

Business savings

Show details
Requires a minimum deposit of 5000 AUD Government guarantee covers combined NAB savings balances up to 250000 AUD A minimum of 31 days' notice is strictly required to withdraw funds before maturity, unless experiencing hardship New term deposits are capped at a maximum term of 2 years; terms up to 5 years are only available for existing rollovers via selfserve channels Interest is calculated daily and paid at maturity for terms up to 12 months, or periodically for longer terms

Find bank, branch or ATM

Locate the nearest financial services, interactive maps, and contact details across Australia.