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A true competitive advantage
Law firm Zarwin Baum’s embrace of generative AI as the natural next step in the evolution of legal work and their adoption of CoCounsel Legal has helped them achieve remarkable efficiency gains and improved client relationships.
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Workflow transformation drives impact
Brinks, a global leader in secure logistics and security solutions, used CoCounsel to reimagine what was possible with AI tools, turning legal challenges into a competitive advantage.
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The forefront of audit tech
A better auditing workflow solution was the answer to multiple challenges faced by The Mercadien Group. Find out how they achieved greater efficiency by embracing Cloud Audit Suite.
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Corporate tax
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CoCounsel Legal
Transform your work with the only AI legal solution uniting research, drafting, and document analysis in a single experience. Designed by legal experts and built on trusted content and advanced AI, CoCounsel Legal accelerates multistep work so you can better serve your clients and grow your business.
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CoCounsel Tax
Transform your tax practice with CoCounsel Tax, an AI-powered assistant that combines trustworthy answers, automation, and firm knowledge into one seamless platform. Enhance efficiency, reduce risk, and improve client confidence with CoCounsel Tax.
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CLEAR
Powerful software designed for law enforcement, compliance, risk, and fraud investigators. Conduct thorough investigations with ease using our intuitive online investigation software. Efficiently, prevent, detect, and solve crime.
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2026 SKILLS showcase
Join weekly sessions to experience in-depth demonstrations of the leading legal AI products while connecting with strategic law firm leaders in knowledge management, innovation, and AI.
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Ghosts on the ledger
Payroll fraud is a major compliance risk. Learn how payroll analytics and AI-powered tools can help exorcise phantom employees and employers.
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Future of professionals report 2025
The Thomson Reuters Future of Professionals Report 2025 reveals how AI continues to shape professional work — and what it takes to get ahead. This year’s report shows that increased efficiency, productivity, and cost savings top the list of benefits professionals attribute to AI, making it indispensable for organizations facing rapid change.
Corporate income tax software
The most trusted corporate tax software on the market
Complete your business tax returns easily and accurately with ONESOURCE Income Tax
Everything you need from efficient corporate tax preparation software
See how ONESOURCE Income Tax works
Companies face an ever-increasing burden of corporate tax compliance. With ONESOURCE Income Tax software, you can simplify complicated tax forms, accurately compute calculations, and meet filing requirements with ease. Watch the video to learn more about the features that can help you maximize deductions while reducing the likelihood of audits.
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Features designed by tax professionals for tax professionals
Full tax compliance
Simplify calculation and reporting of federal, state, and international foreign tax credits, earnings, profits, and deemed-paid credits.
Trial balance management
Conduct efficient research with a built-in, customizable tax law database. Ensure tax compliance while providing a comprehensive tax accounting system for trial balances.
IRS e-filing
File IRS tax returns and schedules online and check their status from any mobile device.
Seamless integration
See any changes across all applications and tax returns, including ONESOURCE Tax Provision, the estimated payments module, and the ONESOURCE International Tax Calculator.
Your access to ONESOURCE Income Tax software starts with choosing one of these programs
ONESOURCE Income Tax Essential
The capability to file local, state, federal, and even international corporate tax returns electronically — and maintain control over the compliance process.
Direct Tax Essential
Easily control and manage compliance processes. E-file federal, international, state, and local corporate tax returns and calculate and estimate accurate tax provisions with filter and review capabilities. Includes ONESOURCE Tax Provision.
Advanced Domestic
Conveniently e-file state, federal, local, and international corporate tax returns quickly and manage compliance processes. Also calculate, track, and record taxable income for multistate corporations.
Advanced International
Conduct e-filings with efficiency and ease — whether for federal, state, local, or international corporate tax returns — while maintaining compliance processes. Manage international tax-related deliverables including TCJA calculations, scenario planning, and entity charting. Carry out CbC reporting and comply with DAC6 and MDR.
Direct Tax Enterprise
Access all the ONESOURCE income tax tools your business needs to remain compliant.
Questions about ONESOURCE Income Tax? We're here to support you.
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