ONESOURCE Indirect Tax Determination
Ensure accurate tax calculations on every transaction
Future-proof your tax processes with automated, accurate calculations and real-time compliance updates. Ensure precise tax determination for VAT, GST and other indirect taxes.
![](/en-au/products/onesource-determination/_jcr_content/root/container/container_234530607_/container_copy/image.coreimg.png/1733814231053/bullseye-arrow-64x64.png)
Up-to-date accuracy
Stay compliant and avoid penalties with automated tax calculations and instant updates tailored to global tax rates, ensuring precise GST, VAT, and other indirect tax determination.
![](/en-au/products/onesource-determination/_jcr_content/root/container/container_234530607_/container_copy_496291026/image.coreimg.png/1733814281374/shield-check-64x64.png)
Minimise risk
Protect your bottom line and maximise control by eliminating financial inaccuracies. Our precision tax calculation system ensures you never overpay or underpay.
![](/en-au/products/onesource-determination/_jcr_content/root/container/container_234530607_/container_copy_1176915447/image.coreimg.png/1733814306966/lightbulb-on-64x64.png)
Best practice content
Drive every calculation and decision with the latest indirect tax content, vetted by Big 4 accounting firms and regularly updated to latest compliance and regulatory standards.
![](/en-au/products/onesource-determination/_jcr_content/root/container/container_234530607_/container/image.coreimg.png/1733814332017/arrow-progress-64x64.png)
Seamless integration
Integrate smoothly into your operations with pre-built ERP integrations and robust API capabilities.
Trusted by customers globally
![](/en-au/products/onesource-determination/_jcr_content/root/container_42318289/container_1375039157/container_copy_17841_833975446/image_1765517582.coreimg.png/1733814390214/logo-orica-p.png)
![](/en-au/products/onesource-determination/_jcr_content/root/container_42318289/container_1375039157/container_copy_17841_833975446/image_copy_198828369_66663705.coreimg.png/1733814411084/logo-tcs-p.png)
![](/en-au/products/onesource-determination/_jcr_content/root/container_42318289/container_1375039157/container_copy_17841_833975446/image_copy_198828369_1355595352.coreimg.png/1733814429457/lenovo-logo-p.png)
![](/en-au/products/onesource-determination/_jcr_content/root/container_42318289/container_1375039157/container_copy_17841_833975446/image_copy_198828369.coreimg.png/1733814447844/adobe-logo-p.png)
![](/en-au/products/onesource-determination/_jcr_content/root/container_42318289/container_1375039157/container_copy_17841/image_copy_198828369_1428085448.coreimg.png/1733814470001/logo-cisco-p.png)
![](/en-au/products/onesource-determination/_jcr_content/root/container_42318289/container_1375039157/container_copy_17841/image_copy_461013504_1768191345.coreimg.png/1733814489099/general-motors-logo-p.png)
Streamline taxes with accuracy and compliance
A single source of truth
Automatically calculate GST, VAT, sales and use tax and excise tax using accurate rates and rules. Calculate and report tax from one source across all business systems
Mitigate risk
Reduce the risk of audit-triggering mistakes using our in-house expertise, backed by SSAE 18 and ISAE 3402 certified processes.
Custom tax rules and policies
Tailor tax rules and policies to meet global tax liability and compliance needs, no matter where you operate.
Seamless integration
Connect to ERP financial, billing, e-commerce, POS, or payment systems through pre-built and custom integrations. Integrate to a specific workflow or process without disrupting the business.
Transaction volume
Minimise latency and improve output by taking advantage of ONESOURCE Determination's ability to calculate correct tax amounts for 10 million transactions per hour with response times of 40 milliseconds per transaction.
Reporting and analytics
Gain efficiency and confidence with fast and flexible reporting for compliance, reconciliation, audit defense, and data analysis.
Talk to an expert
Take the first step towards streamlined and automated tax calculations.
What do our customers think?
![](/en-au/products/onesource-determination/_jcr_content/root/container_1053356720/container_copy/paper_copy/container-paper/container_copy/image_copy_copy.coreimg.png/1734049445672/quotes-large-1-1.png)
ONESOURCE Indirect Tax Determination independently validates GST and triggers workflow, where OITD results vary from the invoice document. This allows the tax team to identify and address issues at the time of invoice processing, rather than at the GST or VAT return preparation stage.
Meiting Liu, Senior Manager - Tax, Orica
Featured resources
Forrester IDT Report
Explore the ROI of ONESOURCE Indirect Tax with Forrester TEI Study's cost savings and efficiency gains
Whitepaper
Tax Engines and ERPs
Webinar
Decoding Tax Determination - choosing the right path in a complex landscape
Frequently asked questions
Tax determination is the process of calculating the tax due based on factors such as the type of transaction, the location of the buyer and seller location, and applicable tax laws. This process helps businesses to comply with regulations by accurately collecting and remitting taxes. IT requires identifying the appropriate jurisdiction, applying relevant tax rates, and considering any exemptions. Many businesses rely on specialised software to automate and streamline this process, ensuring accuracy especially when dealing with multiple jurisdictions and complex transactions.
Sales tax is collected at the final point of sale to the end consumer, with the retailer collecting and remitting the tax. In contrast, VAT is applied at each stage of production and distribution, with businesses charging VAT on sales and receiving credits for VAT paid on purchases. Sales tax rates and rules can vary by local jurisdiction, while VAT is usually consistent at a national level. This results in different compliance requirements and accounting processes for businesses under each system.
Different jurisdictions impact tax determination by introducing variations in tax rates, laws, and rules. Businesses must navigate these differences to apply the correct rates based on the transaction location. Jurisdictions may have unique rules regarding exemptions, thresholds, and tax treatments. Compliance requirements, such as registration and filing, can also vary. Additionally, businesses must consider nexus definitions, which determine tax obligations based on physical presence or economic activity. These complexities often necessitate the use of specialised software to ensure accurate and compliant tax determination across multiple regions.
Tax determination software automates tax calculations to ensure accurate and compliant handling across different jurisdictions. By reducing manual process, it minimises errors and helps business scale efficiently. The software provides real-time tax calculations, integrates with accounting and source systems, and features advanced reporting capabilities, making tax management simpler and allowing businesses to focus on their core operations.
Businesses can stay informed through regular updates from tax authorities, subscribing to industry newsletters, consulting with tax advisors, and using tax determination software that integrates updates to tax regulations automatically.
Related products
ONESOURCE Indirect Compliance
Real-time rates, rules and indirect tax content managed by intuitive software so you can save time and mitigate risk.
ONESOURCE e-invoicing
Comply with global e-invoicing mandates – leveraging an integrated online invoice management and indirect tax solution.
ONESOURCE Workflow Manager
Workflow software that combines document, data and task management, plus collaboration tools.
Experience it for yourself
Take the first step towards streamlined and automated tax calculations.
Have questions? Contact a representative