Help & support
Being prepared can make tax season a whole lot simpler.
Handy tips to consider when preparing your BAS.
Ideas to make tax preparation for your small business easier.
Our simple checklist can help you get ready.
Interest charged by the ATO on business tax debts up to 30 June 2025 may be tax deductible. However, interest charged from 1 July 2025, will no longer be tax deductible, increasing the cost of tax debt. You can consider refinancing this with a BetterBusiness Loan.
Easily download the documents you need.
This provides a summary of interest earned and charged, and any withheld tax on your accounts for current or previous financial years.
This is your official bank record of credits and debits for your business accounts, loans, merchant products and other facilities.
This is an official letter available immediately, confirming your transactions and account details for a period you choose (includes up to 100 transactions).
Scam activity ramps up around tax time, so learn what to look out for.
This page is intended to provide general information only and does not take into account your individual objectives, financial situation or needs. The above information is not tax advice.
Taxation laws are complex and subject to change. Commonwealth Bank does not provide tax (financial) advice under the Tax Agent Services Act 2009 (Cth). You should consider seeking independent tax advice from a registered tax agent, accountant or adviser before you make any decisions based on this information.