ONESOURCE Tax Provision review
A focused choice for ASC 740 and IAS 12 provision workflows.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
ONESOURCE Tax Provision is corporate tax provision software for tax and finance teams managing complex entities and jurisdictions. It supports ASC 740 and IAS 12 calculations across current and deferred tax workflows, with automated tax entries, tax attributes, interim reporting, and configurable reporting. Its intended audience is provision teams that need a structured process for corporate financial close rather than a general-purpose tax return platform.
The product’s strongest area is provision depth. Teams can reconcile effective tax rates, drill from consolidated amounts into supporting detail, and automate tax attributes such as net operating losses and valuation allowances. Monthly and quarterly interim reporting, custom reports, and application-wide filtering add coverage for recurring close and analysis work. Configurable journal entries can support ERP workflows, while the calculation engine is designed to connect provision calculations with accounting outputs.
Platform fit is centered on Microsoft Excel Workpapers, ERP systems, and other applications. Excel push-and-pull integration can accommodate teams that retain spreadsheet workpapers, while configurable entries help transfer provision results into ERP environments. The product also supports data transfer to related tax applications. Pricing follows a contact-sales model, with the vendor directing prospective buyers to request a demo or contact sales. ONESOURCE Tax Provision suits organizations that need both ASC 740 and IAS 12 provision capabilities, current and deferred calculations, and detailed close reporting. Teams seeking a complete return-preparation suite or a narrowly scoped spreadsheet-only workflow should consider a different type of product.
ONESOURCE Tax Provision pros and cons
- Where it wins
- Supports both ASC 740 and IAS 12 current and deferred provisions
- Drills from consolidated amounts to supporting detail
- Connects Excel workpapers and configurable ERP journal entries
- Where it doesn't
- Pricing requires contact with sales
- Focused on provision rather than complete return preparation
- ERP integration depends on the systems and applications in use
ONESOURCE Tax Provision fact sheet, pricing and score →
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