ONESOURCE Corporate Tax
The direct tax lifecycle, re-imagined!
A corporate tax solution that is purpose built for Australia and New Zealand corporations. Save time, with easy set-up.

Easy compliance
Stay ahead with expert tax content and nimble cloud technology. Automate calculations and generate tax returns and pre-configured income tax notes, with the flexibility to cater to your group structure. Streamline tax dataflows with integration and reporting tools.
Streamline work, supercharge data
Save time and enhance data synergies with intuitive corporate tax automation. Roll forward all opening balances, custom workpapers, notes and attachments to the next reporting period. Ensure accuracy with pre-filled ATO forms, built-in e-filing validations, and optional e-lodgement of tax returns with the ATO.
Better control
Elevate your tax strategy with powerful modelling and forecasting capabilities. Ensure scrutiny-readiness with comprehensive tax audit trails and robust tax data management. From the source data to the form disclosures, our platform provides complete data traceability, empowering you to make informed decisions.
Discover a tailored tax solution for ANZ corporations
Greater agility and scalability
Empower your corporate tax team to work flexibly and securely in the cloud, accessing calculation data anytime, anywhere with a browser and device agnostic web-based platform.
Best-in-class content
Rely on trusted content, built and updated by our in-house specialists to ensure you are tax compliant with the latest tax laws and filing requirements across various jurisdictions.
One-step roll forward
Instantly roll forward all opening balances, customised workpapers, notes and attachments to the next tax reporting period.
ATO certified, SBR enabled
Stay compliant with the new SBR requirements for business-to-government reporting. Import your tax data into ONESOURCE E-Filing Manager to easily e-lodge your reports with the ATO.
Local support
With an Australia based support desk, access localised support at the speed of business.
Connectivity with APIs
Integrate our corporate tax software with your existing systems for effortless data sharing. Streamline your workflows through intelligent automation.
Talk to an expert
Streamline your tax operations and enhance accuracy with ONESOURCE Corporate Tax!
What do our customers think?

ONESOURCE works for us because it makes our job easy. My time shouldn't be spent trying to understand how software works...it gives us peace of mind. We're not answering questions all day, we're not spending countless hours trying to file the return [which] should be the easiest thing to do.
Andrea Sype, Tax Manager, HCR ManorCare
Featured resources
Entering a New Era: The Future of Corporate Tax Management
ONESOURCE Corporate Tax
Frequently asked questions
Tax software solutions such as OCT play a significant role in supporting corporations by automating tax calculations, ensuring data integrity, and maintaining audit trails, which are crucial for meeting the governance and control requirements. By integrating tax technology into processes, corporations can improve their tax governance, reduce risks, and ensure consistent and accurate tax reporting.
To ensure compliance, businesses should keep accurate financial records, understand applicable tax laws, file returns on time, and consider using corporate tax software or professional services for guidance. Conducting regular gap analysis to compare current tax risk measures in line with ATO expectations can help identify and rectify compliance issues.
Companies can submit their tax returns online through the Australian Taxation Office (ATO) Business Portal or using tax software compatible with ATO systems. Ensure all financial information is accurate before submission.
Australian companies can claim deductions for expenses like vehicle costs, travel, office supplies, and professional fees. Specific deductions may also apply for research and development activities or energy-efficient investments.
Strategies include utilising all available tax deductions and credits, timing income and expenses to optimise tax outcomes, investing in tax-effective assets, and considering the structure of the business entity. Regular consultation with tax professionals can help identify additional opportunities for tax savings.
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Experience it for yourself
Streamline your tax operations and enhance accuracy with ONESOURCE Corporate Tax!
Have questions? Contact a representative