Enterprise Tax Reporting in OneStream

Confidently Meet Regulatory Requirements

Extend your OneStream platform for modern, scalable tax reporting

As tax regulations become more complex and data-intensive, Finance and Tax teams are under increasing pressure to deliver accurate, auditable and timely tax reporting – without adding another point solution to the landscape.

We deliver pre‑packaged enterprise tax reporting solutions built natively on OneStream. Designed exclusively for existing OneStream customers, these solutions extend your current platform to support Pillar II, Tax Provision and Country‑by‑Country Reporting (CbCR) – all within a single, unified environment.

A COMPREHENSIVE ENTERPRISE TAX REPORTING SOLUTION SUITE

The solutions are delivered in partnership with BDO, combining their strong tax expertise with our proven OneStream delivery capability. Through best practice methodologies and automation, the solutions will help you confidently meet regulatory reporting requirements. They also offer functional modelling and analysis capabilities, helping you better plan the impact of tax across all entities and jurisdictions.

BDO has reviewed, validated and will maintain all tax requirements within the core solution. They are committed to those global updates as local legislation evolves.

Tax Provisioning

Streamline your group tax provision process by leveraging OneStream’s unified financial data model:

Deferred tax not recognised (IFRS) or valuation allowances (US GAAP) tracking on an account-by-account basis.
Detailed Other Comprehensive Income items analysis.
Rules-driven calculations to reconcile any differences in the FX methodologies between the finance and tax processes.
Automated journal generation and posting Reconciliation to statutory and management reporting.
Improved transparency, controls and auditability Reduced reliance on spreadsheets and manual adjustments.
Fully compliant with IFRS and/or US GAAP.

Pillar II (OECD Global Minimum Tax)

Respond confidently to the complexity of Pillar II with a solution that supports:

Data collection and validation across entities and jurisdictions.
Transitional and Permanent Safe Harbour calculations/analysis.
GloBE Income or Loss calculations.
Adjusted Covered Tax calculations.
ETR and Top-up Tax calculations and allocations
Income Inclusion Rule (IIR) Allocations.
Undertaxed Payment Rules (UTPR) allocations.
Audit-ready reporting and analysis.
Alignment with group consolidation and statutory data already in OneStream.

Country-by-Country Reporting (CbCR)

Simplify CbCR compliance with a controlled, repeatable process:

Centralised data collection from group entities.
Utilise financial data stored natively in OneStream to support reporting requirements.
Automated calculations to produce tables 1, 2 and 3.
Automated validations and consistency checks.
Flexible reporting aligned to OECD requirements.
Use in conjunction with the Pillar 2 solution to form the basis for the safe harbour analysis.
Clear audit trails and documentation.

Designed for existing OneStream customers

These Enterprise Tax Reporting solutions are available to organisations already using OneStream and looking to:

Extend platform value beyond Finance
Reduce reliance on spreadsheets and manual tax processes
Improve control, transparency and audit readiness
Align tax reporting with group performance management

If OneStream is already at the heart of your Finance architecture, tax is the natural next step.

A business man look at financial data with tablet

Why OneStream for Enterprise Tax Reporting?

OneStream provides a powerful foundation for enterprise tax processes by bringing Finance and Tax onto a single, unified platform. The Enterprise Tax Reporting suite is one of the most integrated and complete suites available on the market.

Single source of truth – leverage existing actuals, forecasts and statutory data
Strong governance and controls – security, workflow and auditability by design
Scalability – adapt as regulations, group structures and reporting needs evolve
Reduced system complexity – extend OneStream rather than introducing point solutions
Improved collaboration between Finance and Tax teams

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The Concentric/BDO advantage

Through our partnership with BDO, we deliver:

Pre‑configured, best‑practice solution designs.
Accelerated implementations with reduced delivery risk.
Solutions grounded in real-world tax and finance requirements.
A roadmap that aligns tax reporting with broader EPM strategy.

Start your journey to better tax reporting

Whether you are preparing for Pillar II, modernising your tax provision process, or bringing structure and control to CbCR, we can help you achieve compliance with reporting requirements and unlock more value from your OneStream investment.

Talk to us about Enterprise Tax Reporting with OneStream. Complete the form to request a free consultation: