GoSystem Tax RS

Paid#3 of 25 in Corporate Tax Software

GoSystem Tax RS: A cloud platform for firms managing complex, high-volume corporate filings. Ranked #3 of 25 in Corporate Tax Software by our editors (9.2/10); pricing: Pricing on request; best for firms handling complex consolidated returns.

9.2/10★★★★★Editor score

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At a glance

• Editor score
  9.2 / 10
• Pricing
  Pricing on request
• Best for
  Firms handling complex consolidated returns
• Electronic filing
  Yes
• Founded
  2008 · Toronto, Ontario, Canada
• Facts checked
  20 Sep 2026

• Where it wins

  • Supports corporate and multitiered consolidated returns
  • Imports tax documents, trial balances, and workpapers
  • REST APIs support importing, exporting, and e-filing data

• Where it doesn't

  • Pricing requires contacting sales
  • Its scope extends beyond corporate tax returns
  • Complex workflows may exceed smaller firms' needs

Our verdict on GoSystem Tax RS

GoSystem Tax RS is cloud-based professional tax preparation software from Thomson Reuters for accounting firms handling complex U.S. tax work. Its coverage includes corporate, consolidated, partnership, fiduciary, individual, multistate, state, and local returns. Firms working with multitiered structures and high-volume filings get electronic filing, prior-year access, simultaneous collaboration, batch processing, paperless workflows, trial balance tools, and diagnostics in a web-based platform.

Pricing follows a contact-sales model rather than published plan tiers. The platform is available through the web and REST APIs, with connections to FirmFlow, time-and-billing systems, Thomson Reuters products, and third-party applications. Those integrations support firms that need to move return data across tax, practice-management, and other business systems. The APIs cover importing, exporting, and e-filing return data, giving larger practices an option for more structured workflows.

The standout fit is its handling of consolidated and multistate work. Data imports from tax documents, trial balances, and workpapers can reduce manual entry, while built-in trial balance and diagnostics support review before filing. Multiple users can access the same return simultaneously, which suits collaborative tax teams. GoSystem Tax RS makes the most sense for firms managing complex corporate structures, recurring multistate filings, and substantial return volume. Smaller practices seeking a narrowly focused corporate tax tool, transparent tiered pricing, or a simpler workflow may find its wider return coverage and enterprise-oriented features more than they need.

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GoSystem Tax RS pricing

GoSystem Tax RS fact sheet

GoSystem Tax RS integrations

GoSystem Tax RS lists 4 integrations on its own site.

• FirmFlow
• time-and-billing systems
• Thomson Reuters products
• third-party applications

Alternatives to GoSystem Tax RS

• Tax SeriesA broad compliance and provision platform for multinational U.S. tax teams.9.4
• ONESOURCE Income TaxA broad corporate tax system for complex federal, state, local, and international compliance.9.3
• AlphataxA broad corporate tax system for UK groups with complex compliance workflows.9.1

See all GoSystem Tax RS alternatives →

GoSystem Tax RS vs the competition

• GoSystem Tax RS vs Tax Series
• GoSystem Tax RS vs ONESOURCE Income Tax
• GoSystem Tax RS vs Alphatax
• GoSystem Tax RS vs Complete Tax Solutions
• CCGoSystem Tax RS vs CSC Corptax
• GoSystem Tax RS vs ONESOURCE Tax Provision

Compare GoSystem Tax RS with any tool side by side →

Featured on iTechGuides

GoSystem Tax RS is listed in our Corporate Tax Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update