Transform indirect tax compliance from bottleneck to business enabler
Move from determination through e-invoicing to filing with one unified platform that eliminates vendor sprawl, automates 95% of compliance tasks, and frees up your team to drive strategic value across 205 countries
Tax teams manage end-to-end compliance across fragmented systems — manual reconciliation and integration complexity drain IT resources while slowing business expansion
Calculate confidently, get tax right every time
Disconnected determination systems force your team to validate calculations manually. Apply accurate rates across every channel and jurisdiction in milliseconds with AI-powered classification and expert-maintained content covering over 68,000 tax authorities globally.
Automate e-invoicing, stay ahead of mandates
E-invoicing regulations are evolving fast across more than 75 countries. One integration connects you to all mandates — automated creation, validation, and clearance that scales with your business without country-specific workarounds or integration headaches.
Reconcile seamlessly, close books confidently
Manual spreadsheet reconciliation between determination, e-invoicing, and ERP data creates audit risk. Automatically align transactions, flag exceptions, and track resolution — so you find discrepancies before auditors do and close faster with complete audit trails.
See the difference the right solution makes
100%
of the Fortune 100 use ONESOURCE
99.995%
actual uptime over the last 12 months of an SLA of 99.9%
10B
in estimated transactions Thomson Reuters processed in 2024
End-to-end transactional compliance workflow
- Determination
- E-invoicing
- Reconciliations
- Compliance and filing
Calculate and validate tax accurately
Get the right rate, every transaction, everywhere you do business.
What teams can achieve by using ONESOURCE Determination:
- Calculate tax in real time across all sales channels and geographies — e-commerce, point-of-sale, and enterprise transactions.
- Apply AI-powered product classification that turns hours of manual research into automated, accurate decisions.
- Track and validate exemption certificates automatically, eliminating compliance gaps and audit risk.
Comply with global e-invoicing mandates
Stay ahead of evolving regulations without dedicating IT resources to build country-specific integrations.
What teams can achieve by using ONESOURCE Pagero:
- Create and clear e-invoices automatically across more than 75 countries through a single, fully managed network.
- Validate invoices against local requirements in real time before submission, catching errors before they become penalties.
- Access centralized visibility into all e-invoicing activity across jurisdictions from one dashboard.
Align data and resolve variances automatically
Find and fix discrepancies before they become audit findings and close delays.
What teams can achieve by using ONESOURCE Reconciliation:
- Align e-invoice data, VAT returns, and ERP transactions automatically, eliminating manual spreadsheet chaos.
- Identify variances with intelligent matching that highlights exactly what needs attention.
- Track exceptions through to resolution with full audit trails, turning reconciliation into strategic insight.
File returns and generate strategic insights
Transform compliance from manual work into automated reporting that drives business intelligence.
What teams can achieve by using ONESOURCE Indirect Compliance:
- Prepare and file SUT, VAT, and GST returns with repeatable, automated processes across jurisdictions.
- Run prefiling validation checks that catch errors before they become penalties or audit findings.
- Access centralized filing with complete documentation, turning compliance data into strategic foresight.
Use our tax solutions to manage transactional compliance from invoice to filing
ONESOURCE Determination
Calculate tax accurately across every transaction with real-time determination powered by expert-maintained global content and AI.
ONESOURCE Pagero
Comply with e-invoicing mandates across more than 75 countries through one integration — automated creation, validation, and government clearance.
ONESOURCE Reconciliations
Align e-invoicing, VAT return, and ERP data automatically — match transactions, resolve variances, and track exceptions to closure.
ONESOURCE Indirect Compliance
Produce audit-ready statutory reports and e-file returns with automated prefiling checks that catch errors before submission.
Have questions?
See firsthand why enterprises choose Thomson Reuters for indirect tax compliance
“With ONESOURCE, we've transformed our tax operations — delivering faster, more accurate results for our clients.”
Heena Shah
Global Head of Tax, Tech Mahindra
“For me personally, it's shifted a process that used to be reactive to being proactive. The process just works in the background.”
Kevin Escott
Senior Director, JLL
Explore our expert insights and resources
Case study
Driving tax department efficiency and minimizing compliance risks
Learn how Jones Lang LaSalle (JLL) uses indirect tax and e-invoicing compliance automation from ONESOURCE to reduce workloads by over 60%.
Case study
Tech Mahindra transforms global tax, compliance, and e‑invoicing with ONESOURCE
Tech Mahindra leverages ONESOURCE for seamless, scalable tax and e-invoicing transformation across 150,000 associates in over 100 countries.
Special report
Managing change in indirect tax and compliance
As regulatory compliance and automation advance rapidly, technology — particularly AI and generative AI (GenAI) — will revolutionize indirect tax work.
Frequently asked questions
Transactional compliance is the end-to-end process of staying compliant, starting at the moment a transaction happens — from getting tax right on the invoice and meeting real-time e-invoicing/CTC requirements to reconciling what was transacted with what must be reported and filed. With Thomson Reuters, that means connecting tax determination, e-invoicing, reconciliations, and compliance/filing so your team can move from reactive, last-minute work to a more automated “transaction to filing” workflow.
We provide a single, end-to-end workflow that spans the invoice-to-filing journey — linking ONESOURCE Determination (tax calculation) with ONESOURCE Pagero (e-invoicing life cycle), ONESOURCE Reconciliations, and ONESOURCE compliance/filing capabilities. This unified approach is designed to reduce integration complexity by delivering one connected platform experience across the transactional compliance life cycle. The result is greater consistency and auditability from the moment tax is calculated through e-invoice exchange/validation and into filing-ready reporting.
Our approach combines global tax content depth with e-invoicing compliance coverage so you can operate confidently across jurisdictions. ONESOURCE provides global tax rates/rules coverage across 205 countries and territories, supporting accurate determination wherever you do business. For e-invoicing, ONESOURCE Pagero delivers compliance through an open global network with coverage cited as over 75 countries in our enablement materials — supporting evolving mandates and digital reporting requirements. Together, this helps enterprises standardize compliance operations globally while still meeting local requirements.
ONESOURCE Pagero is built on one open, global network that connects businesses with customers, suppliers, and government platforms — so you can exchange and comply with e-invoices through a single connection rather than stitching together country-by-country point solutions. This network model supports the full e-invoicing life cycle — formatting, validation, delivery, real-time status/acknowledgments, and traceability — helping improve control and visibility across invoice flows. It also enables universal connectivity with options such as pre-built connectors — for example, SAP and Oracle — and a global API, helping organizations scale multicountry rollouts with less technical overhead.
ONESOURCE is built to deliver enterprise-grade reliability and operational ease for always-on compliance — using cloud-native capabilities like autoscaling and self-healing while minimizing disruption with no-downtime updates. Customers also benefit from enterprise security and controls — including references to ISO-aligned standards and SLA/uptime commitments in our materials — plus centralized dashboards and workflow visibility to support oversight and audit readiness. In short, you get a platform designed to handle change continuously — across mandates, rules, and volumes — without forcing your team to manage constant upgrades and rework.