Business Interest Account

Here’s a transaction account that actually earns interest on your everyday working capital. All you have to do is keep your balance in the black. Interested?


Key Benefits

  • earn interest whenever your account is in credit
  • no monthly account maintenance fee (if you maintain an average credit balance of $5,000 or more)
  • worldwide, 24/7 account access via Business Online banking and phone banking
  • Eftpos card for 24/7account access via Eftpos and ATMs
  • optional Debit MasterCard* to access your money anywhere MasterCard is accepted
  • optional overdraft to help you with cashflow or unexpected expenses (subject to application) 
  • personalised chequebook

*May be restricted to sole-trader type entities

Low-cost and efficient payment options

You can pay your bills by cheque but we also offer faster, cheaper, and easier options as well. You can set up automatic payments, direct credits and debits and use Business Online banking and telephone banking.

You can make multiple payments via DeskBank, Business Online, Corporate Online and Personal Online Banking quickly and efficiently and you can collect payments via direct debits or Eftpos/credit card merchant facilities.

You’re in control of your account

You know when’s the best time for you to pay your account maintenance charge and transaction fees so we let you choose the day of the month when you pay them. Likewise, you can tell us how often you want to receive your account statements – from every day to every six months.

Sole Traders: open a Business Interest account in Online Banking

If you’re a Sole Trader with at least one business account with Westpac, you can open a Business Interest account through Online Banking. Just select ‘New account’ from the ‘I want a…’ menu.

As soon as you open the account you’ll be able to use it in Online Banking and via ATMs and Eftpos terminals.

>Login to Online Banking to open a Business Interest account now

Interest rates

Business Interest Account - Interest rates
Interest is calculated daily, and paid on the last business day of each month (less resident withholding tax).
Balance Rate
Balance less than $20,000
0.05% p.a.
Balance between $20,000 and $49,999 0.05% p.a.
Balance between $50,000 and $99,999 0.05% p.a.
Balance between $100,000 and $249,999 0.05% p.a.
Balance between $250,000 and $499,999 0.05% p.a.
Balance $500,000 and over 0.05% p.a.


Business Interest Account - Fees
Account maintenance and transaction fees are charged to your account on whatever day of the month you choose. Service fees apply.
Fee descriptionFee amount
Account maintenance fee
$4 per month
Account benefits and relationship rewarding A reward rebate is calculated and paid up to the level shown, subject to the total reward rebate not exceeding the amount of account maintenance and transaction charges paid for that month.
average monthly balance less than $5,000 $0 rebate
average monthly balance $5,000 or more $4 rebate
Electronic transactions Phone Banking and Online Banking available with single and either/or signing rule authorisation only.
EFTPOS, Westpac ATM transfers/withdrawals, automatic payments once set up (service fee applies to set up or amend), direct debits/credits, bill payments, online and phone banking payments
30c per transaction
Manual transactions
Cheques, Westpac ATM deposits, deposits and withdrawals at a branch
75c per transaction