GSTZen vs ONESOURCE Determination
GSTZen
gstzen.in
ONESOURCE Determination
tax.thomsonreuters.comSide by side
| Figure | GSTZen | ONESOURCE Determination |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | — | Yes |
| Linux | — | Yes |
| API | Yes | Yes |
| Self-hosted | — | Yes |
| Plans published | 13 | 1 |
| Spec score · Tax Compliance Software | 8.1 (#24) | 8.6 (#6) |
| API | GSTZen provides APIs for e-invoice generation, E-Way Bill workflows, and GSTIN validation; its e-invoice API page says responses are delivered in under 200 ms. | Thomson Reuters describes API and integration offerings for connecting Determination to business systems and adding capabilities. |
| Headquarters | 4th Floor, Trident Towers, 23, 100 Feet, Ashoka Pillar Rd, 2nd Block, Jayanagar, Bengaluru, Karnataka 560011 | New York, New York, United States |
| Integrations | The maker lists e-invoice integrations with Tally, SAP, Oracle, Microsoft Dynamics, Excel, and APIs. | The product offers pre-built integrations for 60+ financial systems, including SAP, Oracle, and Microsoft Dynamics 365 for Finance and Operations. |
| Support | The site lists the support email [email protected] and a phone number, +91 7406 441122. | ONESOURCE with CoCounsel provides real-time, chat-based answers to product questions. |
Plans
GSTZen
- BasicPrice not published
- ProPrice not published
- Pro PlusPrice not published
- GSTIN Number ValidatorFree
- Taxpayer BasicFree
- Tax Practitioner API Call$5, paid once
- Tax Practitioner JSON to XLS Converter$25, paid once
- Tax Practitioner API Call Data Transfer$5,100, paid once
- Taxpayer ProPriced on request
- Taxpayer Pro PlusPriced on request
In their own words
ONESOURCE Determination
ONESOURCE Determination automates calculations for sales tax, use tax, GST, VAT, and excise tax. The web-based product connects with ERP, financial, billing, e-commerce, point-of-sale, and payment systems through pre-built or custom integrations. It supplies global tax rates, rules, and calculations in real time, with cloud synchronization to support high transaction volumes. Deployment includes a cloud-based indirect-tax engine and an edge-computing option. Determination Anywhere supports business-specific security and data-residency requirements. Tax content covers specialized jurisdictions and industries, with industry offerings for oil and gas, retail, manufacturing, and technology. Configuration features include company structures, global calculations, and tax-return streamlining. Thomson Reuters says its automated calculations and certified processes aim to reduce audit-triggering mistakes; the processes are backed by SSAE 18 and ISAE 3402 certifications. Pricing is on request, and a free demo can be requested.