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CS Professional Suite
tax.thomsonreuters.com · scored Dec 2025Full CS Professional Suite renewals can top $20,000 a year
Best forProfessional accounting and CPA firms managing tax and audit work.
From $2,500 per year
SOC 2mandatory MFAtax compliance
Top score
9.6Product9.5Market8.6Usability8.5Value9.0Integrations9.2Security
Thomson Reuters' integrated tax and accounting suite with seamless data sharing across UltraTax, Accounting, and Practice CS.
Standout factFirms using UltraTax CS report over 50% time savings from CS Professional Suite data integration.tax.thomsonreuters.com
Biggest catchFull-suite renewal quotes have reached over $20,000 a year after the initial 3-year lock-in.reddit.com
~$2,500/yrExpress 100 starting pricethesagenext.com
$20,533.50Reported full-suite renewalreddit.com
4.4/5G2 ratingg2.com
Starting price
$2,500/yrExpress 100 starter package for new customers
Upside
- Data flows automatically across modules
- Supports 1120, 1065, 990, and more
- Mandatory MFA via Authenticator app
Catch
- Virtual Office CS reported laggy
- Renewal prices can nearly double
- FileCabinet CS retiring in 2027
Pick it ifProfessional accounting and CPA firms managing tax and audit work.
Skip it ifGeneral management consulting firms or creative agencies.
PricingCustom quote; Express 100 package around $2,500/yr for new customers
Editor's takeCS Professional Suite lets data entered once in UltraTax CS flow automatically into Accounting CS and Practice CS, cutting redundant entry. Thomson Reuters reports firms save over 50% of their time through this integration. The hosted Virtual Office CS environment is documented to lag during busy season, and users report renewal pricing that can climb past $20,000 a year after an initial 3-year contract.
How much does CS Professional Suite cost?
Pricing is quote-based. A new-customer Express 100 package has run around $2,500 a year, while full-suite renewals have been reported above $20,000 annually.
Is CS Professional Suite being discontinued?
Not the whole suite, but FileCabinet CS is being sunset in 2027, requiring long-term users to migrate to Onvio or a third-party document management tool.
The evidence: 6 criteria, 3 penalties (−0.20 points)
9.6
Product Capability & DepthLooked for: We evaluate the breadth of tax compliance features, form support, and automation capabilities for professional accounting firms.The suite offers an extensive range of integrated applications including UltraTax CS, Accounting CS, and Practice CS, supporting complex tax forms (1040, 1120, 1065, 1041, 990, 5500) and multi-state processing. It features advanced data sharing where data entered once populates across all relevant returns, and includes specialized tools like Fixed Assets CS and Planner CS for comprehensive firm management.tax.thomsonreuters.comtax.thomsonreuters.comtax.thomsonreuters.com
9.5
Market Credibility & Trust SignalsLooked for: We assess the vendor's industry standing, user adoption rates, and longevity in the tax and accounting market.Thomson Reuters is a dominant player in the tax software market, with CS Professional Suite being widely recognized as a comprehensive solution for firms of all sizes. The product maintains high user ratings (e.g., 4.4/5 stars on G2) and is a long-standing staple in the industry, trusted by thousands of accounting professionals for critical compliance work.accountingtoday.comg2.comtax.thomsonreuters.com
8.6
Usability & Customer ExperienceLooked for: We analyze user interface design, ease of navigation, system performance, and the quality of customer support.While the software is praised for its sophisticated features and 'instant prep' checklists, users frequently report significant performance issues, including lag and slowness in the Virtual Office CS (SaaS) environment. Support experiences are mixed, with some users citing long wait times and unhelpful resolutions during peak tax seasons.tax.thomsonreuters.comaccountingtoday.comthomsonreuters.com
8.5
Value, Pricing & TransparencyLooked for: We examine pricing structures, transparency of costs, contract terms, and overall return on investment.Pricing is not publicly transparent and requires custom quotes. Research indicates costs can exceed $20,000 annually for small firms using the full suite. Users report 3-year lock-in contracts with significant price increases upon renewal. However, the 'Express 100' package offers a lower entry point for smaller firms, and the efficiency gains often justify the premium price for established practices.tax.thomsonreuters.comthesagenext.comreddit.com
9.0
Integrations & Ecosystem StrengthLooked for: We assess the strength of internal suite integrations and connectivity with third-party tools like QuickBooks and SafeSend.Internal integration is a standout feature, with seamless data transfer between UltraTax CS, Accounting CS, and Practice CS. The ecosystem supports third-party integrations with major tools like QuickBooks, SafeSend, and various payroll providers, allowing for a unified workflow that minimizes manual data entry.tax.thomsonreuters.comtax.thomsonreuters.comsafesendreturns.zendesk.com
9.2
Security, Compliance & Data ProtectionLooked for: We evaluate data security measures, compliance with IRS standards, and availability of multi-factor authentication.The suite adheres to strict IRS security requirements and offers robust protection including 256-bit encryption and SOC 2 certified data centers for hosted solutions. It mandates Multi-Factor Authentication (MFA) via the Thomson Reuters Authenticator app, ensuring high-level security for sensitive client financial data.tax.thomsonreuters.comtax.thomsonreuters.comacecloudhosting.com
Score adjustments−0.20 points in total
−0.08Users consistently report significant performance lag and slowness when using the Virtual Office CS (SaaS) hosted environment, impacting productivity during busy seasons.thomsonreuters.com · severity 75/100
−0.08Thomson Reuters has announced the end-of-life for FileCabinet CS in 2027, forcing long-term users to migrate to alternative document management solutions like Onvio or third-party tools.smartvault.com · severity 60/100
−0.04Pricing is opaque with no public list prices; users report significant price increases after initial 3-year contract lock-ins expire.reddit.com · severity 50/100
