ONESOURCE Determination vs VATCalc Calculator

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.

VATCalc Calculator determines VAT and GST for domestic and cross-border transactions, either as transactions occur or in batches. It can connect to shopping carts, ERPs, ecommerce platforms, invoicing systems, and other applications through web access and an API. Calculations draw on codified national tax laws, including the EU VAT Directive, and can include legal references and suggested adjustments. Users can map goods and services themselves, use pre-mapped HS, TARIC, and CPA codes, or apply coding assumptions with VATScript. Customer-selected exchange-rate data can be incorporated.

The product supports REST API feeds, HTTP, FTP, and other exchange formats. Listed integrations include SAP S/4HANA and ECC, SAP Public Cloud, Oracle NetSuite, Oracle JD Edwards, Odoo, and Chargebee. Transactions can flow into VAT returns through the shared VAT Filer platform, and the calculator can also be incorporated into VATCalc’s e-invoicing service. VATCalc describes the service as built on Amazon Web Services to handle transaction volumes and daily peaks without latency planning. It states that it is ISO 27001 certified. Pricing is on request, and a free trial is available.