Other ways we can help
Loans of up to $1 million to help support your business.
Benefits of a NAB Business Overdraft
An unsecured or secured overdraft starting from $20,000. See how it could benefit your business.
Flexibility
No set repayment schedule within your approved limit, and access to funds at anytime.
Convenience
A revolving line of credit (subject to annual review).
Easy access
The option to link a variety of NAB accounts to your overdraft and access to cash via our ATM network using your linked NAB Business Visa Debit card.
Link your NAB business overdraft to these business accounts
A NAB Business Overdraft account must be linked to one of the following transaction or specialised accounts.
Transaction accounts
Link a NAB business overdraft to one of our NAB business transaction accounts.
Specialised accounts
If your business is specialised you can link an overdraft to the following accounts.
NAB Business Overdraft
Ready to apply?
See how a NAB Business Overdraft could work for your business.
Access funds fast with a business overdraft
Tools and calculators
Use our handy tools and calculators to help you run your business.
Business calculators
NAB has a range of business calculators and tools, along with a national network of business bankers to help you.
Help me choose the right business loan
Not sure where to start with business finance? Use our easy business loan selector tool.
Calculators and tools for small businesses
Try our tools and calculators for small business to help you manage your finances
Help and support Common NAB Business Overdraft questions
What assets can be used as security for a secured business overdraft?
Assets including suitable residential, commercial, or rural property, business assets, or a combination of these, can be used as security for a secured business overdraft.
What are the rates and fees associated with a NAB secured business overdraft?
Fees and variable interest rates are available on application. The debit interest is calculated on the daily outstanding balance and is charged to the account on the last banking day of the month. Other fees may also apply to your linked transaction account.
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Other ways we can help
Use our help guides, FAQs and other support services to help you manage your banking more easily.
Other loans to consider
Not what you're looking for? Check out our other business loans and overdrafts.
NAB QuickBiz unsecured business loan
Fast, unsecured business lending made easy. Get access to funds for your business without physical assets as security.
NAB QuickBiz unsecured business overdraft
Manage your cash flow and unexpected expenses with an unsecured business overdraft on your transaction account, up to $50,000.
Business car and equipment finance
Find the right finance solution for your vehicle and equipment needs.
Get in touch
Contact us
Explore our business banking contact information and get support with a wide range of products, services and topics.
Visit a NAB branch
Our business bankers are located all around Australia.
Terms and Conditions
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Lending criteria and terms and conditions apply (available on application).
- Rates, fees and charges
- Business Banking Fees – A guide to fees and charges
- Business lending general terms (PDF, 234KB)
NAB recommends you consider the Product Disclosure Statement or other disclosure document, available from NAB, before making any decisions regarding these products. These products are issued by National Australia Bank Limited ABN 12 004 044 937.