About
UltraTax CS, developed by Thomson Reuters, is a comprehensive professional tax software solution built for tax preparers, public accounting firms, and corporate tax departments. It automates the full tax preparation workflow—spanning individual returns, business entities, estates, and trusts—dramatically reducing the time spent on compliance and data management. The platform is designed to scale from small CPA firms to large multi-entity corporate environments, offering robust tools for high-volume transaction processing and accurate reporting across complex tax scenarios. UltraTax CS integrates tightly with the broader Thomson Reuters CS Professional Suite, enabling seamless data sharing with accounting, audit, and document management products. With the addition of AI-powered capabilities through CoCounsel Tax and Ready to Advise, the software helps professionals surface actionable tax strategies, complete research faster, and deliver higher-value client services. The system also connects with trusted legal and tax content sources such as Westlaw and Practical Law, supporting well-informed decision-making. Key use cases include federal and state return preparation, corporate tax compliance, partnership and S-corp filings, and tax planning advisory services. UltraTax CS is ideal for tax professionals who need a reliable, deeply integrated, and continually updated platform to manage growing workloads while maintaining accuracy and regulatory compliance. A free demo is available for firms evaluating the platform.
Key Features
- End-to-End Tax Workflow Automation: Automates the entire tax preparation process from data entry through filing, reducing manual work and minimizing errors across individual, business, estate, and trust returns.
- AI-Powered Tax Research & Strategy: Leverages CoCounsel Tax and Ready to Advise AI tools to surface actionable tax strategies, complete client deliverables faster, and provide research grounded in trusted Thomson Reuters content.
- Multi-Entity Corporate Tax Processing: Handles high-volume, complex corporate tax scenarios across multiple entities with scalable tools built for enterprise-level compliance requirements.
- Seamless CS Professional Suite Integration: Integrates natively with Thomson Reuters' accounting, audit, and document management tools, enabling efficient data sharing and a unified professional workflow.
- Federal & State Return Coverage: Provides comprehensive coverage of federal, state, and local tax forms and regulations, keeping firms compliant with continuously updated tax law changes.
Use Cases
- Preparing federal and state individual, business, estate, and trust tax returns for clients of a CPA firm.
- Managing high-volume multi-entity corporate tax compliance across complex organizational structures.
- Automating repetitive tax workflow tasks to free up professional time for higher-value advisory and planning services.
- Conducting AI-assisted tax research and generating client-ready tax strategy deliverables more efficiently.
- Ensuring ongoing regulatory compliance with continuously updated tax law changes across jurisdictions.
Pros
- Comprehensive Workflow Automation: Automates repetitive tax preparation tasks, significantly reducing preparation time and allowing professionals to focus on higher-value advisory work.
- Deep Thomson Reuters Ecosystem Integration: Connects natively with Westlaw, Practical Law, CoCounsel, and other CS Professional Suite products, creating a unified and highly efficient tax and legal workflow.
- AI-Augmented Capabilities: Built-in AI tools help identify tax planning opportunities and accelerate research, giving firms a competitive edge in client advisory services.
- Scalable for Firms of All Sizes: Supports everything from small CPA practices to large multi-entity corporate tax departments, making it versatile across different firm structures.
Cons
- Non-Transparent Pricing: Pricing is not publicly listed; firms must contact Thomson Reuters directly or request a demo, which can slow down procurement decisions.
- Steeper Learning Curve: The platform's breadth of features and deep integrations can require significant onboarding time, especially for teams new to the CS Professional Suite ecosystem.
- Best Suited for Established Firms: The enterprise focus and likely premium pricing may make it less accessible for solo practitioners or very small firms with limited budgets.
Frequently Asked Questions
UltraTax CS is a professional tax preparation software by Thomson Reuters that automates and streamlines tax workflows for CPA firms, accounting professionals, and corporate tax departments.
It is designed for tax preparers, public accounting firms, corporate tax teams, and government tax professionals who need a scalable, accurate, and integrated tax compliance solution.
Yes. UltraTax CS integrates with Thomson Reuters' AI-powered tools such as CoCounsel Tax and Ready to Advise, which help professionals complete tax research faster and identify strategic planning opportunities for clients.
UltraTax CS integrates with the full Thomson Reuters CS Professional Suite, including accounting, audit, and document management tools, as well as Westlaw and Practical Law for legal and tax research.
You can request a free demo through the Thomson Reuters website to see UltraTax CS in action. A sales representative will guide you through the platform's capabilities and discuss pricing based on your firm's needs.
