Our Services

Tax Technology That Works
From Day One

End-to-end implementation, automation, and support across the full tax technology stack.

Thomson Reuters ONESOURCE

ONESOURCE Tax Provision

End-to-end implementation of ONESOURCE Tax Provision for multinational group reporting.

ONESOURCE Tax Provision (OTP) is the market-leading platform for group tax provision and reporting for multinational organisations. Osprey Consulting has deep, hands-on expertise across the full OTP implementation lifecycle — from initial scoping and data analysis through to configuration, integration, testing, and go-live.

Mark Hart spent years as Director of Solution Consulting at Thomson Reuters, leading ONESOURCE implementations across Europe and globally. That experience means we understand both the technical platform and the real-world tax requirements it needs to meet.

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What We Deliver

  • Requirements analysis and system design
  • Chart of accounts mapping and data transformation
  • ERP and TB data integration (API, file-based, Alteryx)
  • Current and deferred tax configuration
  • Jurisdictional rules and apportionment logic
  • Return-to-provision and true-up workflows
  • Report design and published output
  • Parallel-run testing and sign-off
  • User training and knowledge transfer
  • Post-go-live hyper-care and support
Thomson Reuters ONESOURCE

ONESOURCE Corporate Tax

Corporate tax compliance and statutory reporting automation, built around your processes.

ONESOURCE Corporate Tax (OCT) automates the preparation, review, and filing of UK and international corporation tax returns — reducing manual effort and improving accuracy across your compliance cycle.

We implement OCT alongside your existing ERP and data infrastructure, ensuring that your data flows cleanly into the platform and that your team can run and review computations confidently. Where appropriate, we combine OCT with statutory reporting workflows to create an integrated compliance process.

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What We Deliver

  • OCT platform setup and entity configuration
  • Data integration with ERP and ledger systems
  • Tax computation configuration (UK CT, international)
  • Workflow design and review process setup
  • Statutory reporting integration
  • Template and output design
  • User training and team enablement
  • Ongoing support and software updates
Alteryx Solution Provider Partner

Alteryx Workflow Automation

Data transformation, ETL, and process automation for tax and finance teams.

Alteryx is a powerful data preparation and workflow automation platform. For tax and finance teams, it eliminates repetitive manual work — transforming raw ERP data, reconciling trial balances, preparing data for OTP or OCT upload, and automating reporting packs.

As a registered Alteryx Solution Provider Partner, Osprey Consulting designs and builds Alteryx workflows tailored specifically to tax and finance use cases. We focus on practical automation that your team can run and maintain — not black-box solutions that create new dependencies.

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What We Deliver

  • TB and ERP data extraction and transformation
  • Automated data preparation for ONESOURCE upload
  • Reconciliation and exception-reporting workflows
  • Trial balance consolidation and mapping automation
  • Scheduled data refreshes and output distribution
  • Workflow documentation and team training
APIs · RPA · File-Based

Data Integrations

Connecting your ERP, source systems, and tax technology with reliable, auditable data flows.

Clean, timely data is the foundation of any tax technology implementation. We design and build the integrations that connect your source systems — SAP, Oracle, D365, or others — with your tax platforms, ensuring the right data arrives in the right format at the right time.

We work across API-driven connections, file-based workflows, and RPA-assisted extraction depending on your system landscape. Every integration is documented, testable, and maintainable by your internal team.

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What We Deliver

  • ERP-to-OTP and ERP-to-OCT data extraction
  • API integration design and build
  • Alteryx-driven ETL pipelines
  • File-based data transformation and mapping
  • RPA-assisted extraction (where API access is limited)
  • Data quality validation and exception handling
  • Integration testing and UAT support
  • Ongoing maintenance and monitoring
Consulting

Process Optimisation

A structured review of your current workflows, with practical improvements that stick.

Before implementing new technology, it is worth understanding exactly how your current processes work and where the real friction sits. We conduct structured process reviews of your tax and finance workflows — mapping what happens, where data moves, where time is lost, and where the risks lie.

Our review outputs are practical and actionable. We do not produce lengthy reports full of recommendations that sit on a shelf. Instead, we work with your team to prioritise improvements and begin implementation in the same engagement where possible.

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What We Deliver

  • Current-state process mapping and assessment
  • Data flow and manual-effort analysis
  • Risk and control identification
  • Technology fit assessment (OTP, OCT, Alteryx)
  • Prioritised improvement roadmap
  • Implementation support for quick wins
  • Business case development for larger investments
Enablement & Support

Training & Support

Structured knowledge transfer and post-go-live support to keep your team confident.

Technology implementations only deliver lasting value when the people using the system are confident and capable. We provide structured training programmes tailored to your team — covering system navigation, data flows, configuration logic, and reporting outputs.

Post-go-live, we offer hyper-care support and ongoing advisory to handle questions, configuration changes, and system updates as they arise. Our support is direct — you reach us, not a helpdesk.

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What We Deliver

  • Role-based training programme design
  • Hands-on system walkthroughs and exercises
  • Configuration and admin training for power users
  • Quick-reference guides and documentation
  • Post-go-live hyper-care (agreed period)
  • Ongoing advisory and configuration support
  • New joiner onboarding for existing systems