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CSC Corptax

CSC Corptax delivers trusted enterprise tax solutions for U.S. and global compliance, provision, and planning. Our single tax system centralizes tax data and workflows, combining AI-informed automation and analytics for accuracy, control, and insight that supports business strategy.

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Eye on Pillar 2: Updates and Insights!

Corporate tax software and solutions

Best system architecture for the corporate tax life cycle

  • Total transparency
  • Instant data access
  • Full data governance

Global and domestic: GAAP and IFRS

  • Instant RTP
  • Predictive analytics
  • Concurrent reviews

Flow data from international through state reporting

  • Automate calcs and data dependencies
  • Automate adjustments and apportionment
  • Leverage data-driven reviews

Planning, analytics, and reporting tools

  • Anticipate global tax changes
  • Streamline calcs, forms, and more
  • Understand data dependencies

Total solution: complete tax lifecycle

  • Calculate Top-up taxes and safe harbors
  • Auto-generate GIR and local filings
  • Evaluate, calculate, comply

Build and share high value intel

  • Perform analytics within Corptax
  • Flow data to and from BI apps
  • Share info internally and externally

Resources

webinars tax solutions April 2025

Blog post:
Advancing Tax Tech with Corptax and AI

blog tax solutions June 2025
reports tax solutions March 2023
webinars tax solutions October 2025

Award-winning tax technology support

Available every day and after hours during busy season, our tech and tax law experts stay with you until your issue is solved.

24x7 access to help

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consecutive Support Staff Excellence awards

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Customer satisfaction rating - we care!

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in-product videos, webcasts, and CPE classes

Corptax Professional Services

Automate workflows and tax data analytics

Implement with guided-to-full assistance

Plan strategically for complex tax regulations

Close gaps with cost-effective loan-staff services

Trusted by industry leaders

CSC Corptax solutions support 1,000 corporate clients in 100 countries, including 50% of the Fortune 500® and 60% of the Fortune 100.


Frequently Asked Questions (FAQs)

Corporate tax is the tax a business pays on its profits to federal, state, and local governments. For multinational enterprises, corporate tax management includes calculating current and deferred tax liabilities, preparing returns, completing the income tax provision, and meeting compliance requirements across jurisdictions.

Corporate tax software is a digital tool or online application designed to help businesses manage complex financial reporting, tax compliance, and regulatory requirements. It replaces manual spreadsheets and disconnected processes with automation that improves accuracy, reduces risk, and helps tax teams work more efficiently.

Modern enterprise tax software can support income tax provision, federal and state compliance, international tax reporting, and regulatory requirements across multiple entities and jurisdictions.

Corptax is corporate tax software built for enterprise tax departments. The platform helps companies automate and manage tax compliance, income tax provision, and reporting and filings in one single system.

Corptax helps reduce manual work, lower risk, and improve visibility across tax processes.

Corptax supports a many federal, state, local, and international tax forms. These include Form 1120, Form 5471, Form 8858, and OECD Pillar 2 filings such as the GIR (Global Information Return) and QDMTT (Qualified Domestic Minimum Top-up Tax).

The platform also supports state and local income tax returns across all U.S. jurisdictions for both separate-company and consolidated filing.

Yes. Corptax provides implementation support, product training, ongoing customer services, and dedicated account representatives for tax teams.

Corptax support has earned the TSIA Certified Support Staff Excellence Award consecutively since 2009 and holds a 99% customer satisfaction rating. Support is available every day, during and after business hours, including busy season coverage from tax and technology specialists.

Insourcing with corporate tax software gives tax teams more control over their data, processes, and timelines. This helps teams improve visibility, accuracy, and audit readiness during close and filing periods.

Outsourcing may reduce some staffing pressure, but many companies prefer to keep tax work in-house to maintain access and control. Corporate tax software helps teams manage complex multi-entity or multi-jurisdiction requirements without adding headcount or relying on manual processes.

Contact CSC Corptax

We're tax tech experts bringing ease, efficiency, and integrity to corporate tax.