Best Enterprise Corporate Tax Software

How Many Corporate Tax Software Products Does G2 Track?

Total Products under this Category: 193

Category Stats (Sep 2026)

  • Average Rating: 4.4/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Intuit ProSeries Tax (+0.97%) - Among all products in this category, Intuit ProSeries Tax recorded the largest rating increase compared to last month

Last updated: September 15, 2026

How Does G2 Rank Corporate Tax Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 3,400+ Authentic Reviews
  • 193+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Corporate Tax Software

G2 Grid® for Corporate Tax Software plotting products by satisfaction and market presence

Highlighted products: Vertex, TurboTax Business, Avalara, Sovos, tax.com, CSC Corptax, GoSystem Tax RS, and CCH ProSystem fx Tax.

Underlying data: [Grid® JSON](https://www.g2.com/categories/corporate-tax/grids.json?focus%5B%5D=vertex-inc-vertex&focus%5B%5D=turbotax-business&focus%5B%5D=avalara&focus%5B%5D=sovos&focus%5B%5D=tax-com-tax-com&focus%5B%5D=csc-corptax&focus%5B%5D=gosystem-tax-rs&focus%5B%5D=cch-prosystem-fx-tax&segment=enterprise)

Vertex

Vertex is the Decision-to-Defense global indirect tax and compliance company. We help enterprises control indirect tax and compliance with confidence. From tax determination and e-invoicing to reporting, filing and audit defense, we make outcomes easier to prove and improve over time. Our ability to integrate across ERP, e-commerce, marketplace, procurement, CRM, and other financial systems means customers can centralize tax determination and compliance to improve accuracy and consistency for the business. Since 1978, Vertex has specialized in helping businesses navigate one of their most critical responsibilities: indirect tax and compliance. We combine deep domain expertise, trusted tax data, and innovative technology to ensure businesses and communities thrive through trusted transactions.

Average Rating: 4.4/5.0

Total Reviews: 458

How Do G2 Users Rate Vertex?

  • Has the product been a good partner in doing business?: 8.2/10 (Category avg: 8.7/10)
  • Quality of Support: 7.7/10 (Category avg: 8.6/10)
  • Ease of Use: 8.1/10 (Category avg: 8.7/10)
  • Ease of Admin: 8.4/10 (Category avg: 8.6/10)

Who Is the Company Behind Vertex?

  • Seller: Vertex Inc.
  • Company Website:
  • Year Founded: 1978
  • HQ Location: King of Prussia, PA
  • Twitter: @vertexinc
    4,857 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    2,487 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Tax Manager
  • Top Industries: Retail, Manufacturing
  • Company Size: 56% Large, 24% Medium

What Do G2 Reviewers Say About Vertex?

AI-generated summary from verified user reviews

Pros
  • Users find Vertex to be super user-friendly, making it easy to train and access for all levels of expertise.
  • Users commend the responsive customer support of Vertex, making it easy to implement and user-friendly.
  • Users value the easy and quick tax updates from Vertex, which save money and simplify compliance for audits.
  • Users find the support associates very helpful, providing easy-to-understand instructions and friendly assistance.
  • Users value the accuracy of tax calculations, ensuring precise tax codes and rates readily available for audits.
Cons
  • Users feel that improvement is needed in finding materials and updating lookup tables efficiently.
  • Users find the interface complex, lacking onboarding and requiring support for essential changes, complicating their experience.
  • Users express frustration over poor customer support, with slow resolutions and difficulties reaching appropriate representatives.
  • Users experience technical issues with Vertex, including slow updates and performance problems affecting overall functionality.

What Are Recent G2 Reviews of Vertex?

What Are G2 Users Discussing About Vertex?

TurboTax Business

With TurboTax Business, you don’t need to know a thing about business taxes.

Average Rating: 4.4/5.0

Total Reviews: 92

How Do G2 Users Rate TurboTax Business?

  • Has the product been a good partner in doing business?: 8.8/10 (Category avg: 8.7/10)
  • Quality of Support: 8.1/10 (Category avg: 8.6/10)
  • Ease of Use: 8.9/10 (Category avg: 8.7/10)
  • Ease of Admin: 9.1/10 (Category avg: 8.6/10)

Who Is the Company Behind TurboTax Business?

  • Seller: Intuit
  • Year Founded: 1983
  • HQ Location: Mountain View, California
  • Twitter: @Intuit
    80,559 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    15,963 employees on LinkedIn®
  • Ownership: VIE:INTU

Who Uses This Product?

  • Top Industries: Accounting, Financial Services
  • Company Size: 82% Small, 11% Large

What Are Recent G2 Reviews of TurboTax Business?

What Are G2 Users Discussing About TurboTax Business?

Avalara

Avalara is the agentic AI platform for global tax and compliance. For more than two decades, Avalara has built one of the most expansive libraries of tax content and integrations in the industry, processing more than 54 billion transactions annually and supporting over 200,000 direct and indirect customers across more than 75 countries. The company's purpose-built AI agents automate end-to-end compliance with greater precision, from tax calculations and return filings to exemption certificate management and beyond. For more information, visit avalara.com.

Average Rating: 4.0/5.0

Total Reviews: 813

How Do G2 Users Rate Avalara?

  • Has the product been a good partner in doing business?: 7.1/10 (Category avg: 8.7/10)
  • Quality of Support: 6.7/10 (Category avg: 8.6/10)
  • Ease of Use: 7.9/10 (Category avg: 8.7/10)
  • Ease of Admin: 7.5/10 (Category avg: 8.6/10)

Who Is the Company Behind Avalara?

  • Seller: Avalara, Inc.
  • Company Website:
  • Year Founded: 2004
  • HQ Location: Durham, NC
  • Twitter: @avalara
    24,788 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    5,633 employees on LinkedIn®

Who Uses This Product?

  • Who Uses This: Controller, CFO
  • Top Industries: Computer Software, Retail
  • Company Size: 48% Medium, 36% Small

What Do G2 Reviewers Say About Avalara?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Avalara, simplifying sales tax filing and transaction tracking effectively.
  • Users value the tax automation of Avalara, significantly saving time and reducing compliance risks in their processes.
  • Users appreciate the ease of filing with Avalara, making sales tax compliance simple and efficient.
  • Users appreciate the ease of use of Avalara, especially for managing customer exemption certificates and nexus thresholds.
  • Users value the excellent customer support from Avalara, appreciating the ease of access and implementation assistance.
Cons
  • Users note that communication on changes and updates needs improvement for a smoother Avalara experience.
  • Users experience poor customer support, noting a lack of guidance and quick ticket closures without solid resolutions.
  • Users encounter tax issues with Avalara, often requiring additional support and documentation for effective usage.
  • Users experience poor support services with slow responses and lack of proactive communication during implementations.
  • Users face numerous billing issues with Avalara, including unexpected charges and poor account management communication.

What Are Recent G2 Reviews of Avalara?

What Are G2 Users Discussing About Avalara?

Sovos

Sovos is tax compliance software that helps businesses determine, report, and remit taxes and meet e-invoicing mandates across nearly 200 countries from a single platform. Companies use Sovos to automate sales & use tax and VAT determination, comply with real-time e-invoicing and continuous transaction control (CTC) mandates, file and remit returns, manage exemption certificates, and handle tax information reporting such as 1099 and related forms. Built for enterprises and high-growth businesses, the Sovos Compliance Cloud unifies indirect tax, e-invoicing, and regulatory reporting so finance and tax teams can keep pace as governments move to real-time, digital enforcement. Sovos processes 16 billion+ transactions per year for 100,000+ customers — including half the Fortune 500 - and integrates with the ERP, billing, and procurement systems businesses already run, such as SAP, Oracle, NetSuite, and Microsoft Dynamics. Sovos Intelligence, powered by the Sovi AI assistant, adds natural-language analytics and cross-dataset reconciliation, so teams can catch discrepancies before filing and answer tax-authority questions in hours, not weeks. Sovi is Sovos's AI assistant, part of Sovos Intelligence. Tax and finance teams can ask questions about their own compliance data in plain language and get instant reports, charts, and insights. No SQL or analyst ticket required. Paired with Mirror Visibility, which reconciles e-invoicing, VAT, and SAF-T data across sources, Sovi helps teams catch discrepancies before filing and respond to audits with source-backed evidence.

Average Rating: 4.2/5.0

Total Reviews: 95

How Do G2 Users Rate Sovos?

  • Has the product been a good partner in doing business?: 8.1/10 (Category avg: 8.7/10)
  • Quality of Support: 8.4/10 (Category avg: 8.6/10)
  • Ease of Use: 8.0/10 (Category avg: 8.7/10)
  • Ease of Admin: 7.7/10 (Category avg: 8.6/10)

Who Is the Company Behind Sovos?

  • Seller: Sovos
  • Company Website:
  • Year Founded: 2015
  • HQ Location: Wilmington, MA
  • Twitter: @SovosCompliance
    1,360 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    1,856 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Accounting, Insurance
  • Company Size: 45% Medium, 40% Large

What Do G2 Reviewers Say About Sovos?

AI-generated summary from verified user reviews

Pros
  • Users value the quick and responsive customer support from Sovos, enhancing their overall experience and efficiency.
  • Users value the excellent customer service of Sovos, citing their responsiveness and support in addressing issues effectively.
  • Users value the automation capabilities of Sovos for efficient "womb to tomb" 1099 processing, streamlining their workflows.
  • Users find Sovos' platform to have ease of use, benefiting from quick support and helpful tutorials.
  • Users appreciate the excellent communication and timely support available with Sovos, enhancing their overall experience.
Cons
  • Users find the complex interface of Sovos can complicate troubleshooting and hinder a smooth experience.
  • Users find that improvement is needed in user-friendliness and overall navigation of the Sovos platform.
  • Users find the user interface complex, especially during troubleshooting and when accessing reporting options.
  • Users find the user interface complex, suggesting it should be more intuitive for occasional use.
  • Users find the separate login requirement for the compliance portal inconvenient and wish for better integration.

What Are Recent G2 Reviews of Sovos?

What Are G2 Users Discussing About Sovos?

tax.com

tax.com, powered by Ryan, helps corporate tax teams simplify compliance across property tax, transfer pricing, and unclaimed property. The platform automates complex workflows, centralizes documentation, and delivers precision built on decades of Ryan tax expertise. Companies use tax.com to reduce audit exposure, eliminate manual effort, and gain confidence in every filing.

Average Rating: 4.6/5.0

Total Reviews: 81

How Do G2 Users Rate tax.com?

  • Has the product been a good partner in doing business?: 9.1/10 (Category avg: 8.7/10)
  • Quality of Support: 9.4/10 (Category avg: 8.6/10)
  • Ease of Use: 8.8/10 (Category avg: 8.7/10)
  • Ease of Admin: 8.5/10 (Category avg: 8.6/10)

Who Is the Company Behind tax.com?

  • Seller: tax.com™
  • Company Website:
  • Year Founded: 2022
  • HQ Location: Dallas, TX
  • LinkedIn® Page: www.linkedin.com
    112 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Manufacturing, Accounting
  • Company Size: 39% Large, 33% Small

What Do G2 Reviewers Say About tax.com?

AI-generated summary from verified user reviews

Pros
  • Users appreciate the ease of use of Tax.com, facilitating quick and secure information sharing for tax compliance.
  • Users find Tax.com to be a significant time-saver, making tax preparation smoother and less overwhelming.
  • Users appreciate the real-time tracking features of Tax.com, ensuring timely updates and efficient property tax management.
  • Users highlight the exceptional customer support at tax.com for being quick, knowledgeable, and responsive to needs.
  • Users appreciate the real-time visibility and control provided by tax.com, enhancing insights across multiple tax types.
Cons
  • Users find that improvement is needed in support response times and feature limitations, complicating their overall experience.
  • Users note the missing features in Tax.com, requiring additional providers and leading to inefficient data handling.
  • Users report poor customer support with Tax.com, frequently facing delays and difficulty in reaching assistance when needed.
  • Users find the complex interface of tax.com cumbersome, though they appreciate ongoing improvements to enhance usability.
  • Users report that the complexity of issues can lead to longer turnaround times for resolutions.

What Are Recent G2 Reviews of tax.com?

CSC Corptax

Corptax transforms the business of tax through technology, business process expertise and award-winning support. Clients achieve breakthrough tax performance using the first and only single-platform solution on the market offering unmatched automation to align processes and workflows, enhance transparency, improve accuracy and lower risk across the entire corporate tax lifecycle. For more than 40 years, Corptax has supported the evolving tax needs of leading organizations in many industries. Today, Corptax helps over 1,000 clients in 100 countries, including 50% of the Fortune 500 and 60% of the Fortune 100, nationally.

Average Rating: 4.0/5.0

Total Reviews: 19

How Do G2 Users Rate CSC Corptax?

  • Has the product been a good partner in doing business?: 6.7/10 (Category avg: 8.7/10)
  • Quality of Support: 7.4/10 (Category avg: 8.6/10)
  • Ease of Use: 6.1/10 (Category avg: 8.7/10)
  • Ease of Admin: 3.3/10 (Category avg: 8.6/10)

Who Is the Company Behind CSC Corptax?

  • Seller: Corptax
  • HQ Location: Buffalo Grove, IL
  • Twitter: @corptaxsoftware
    309 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    396 employees on LinkedIn®

Who Uses This Product?

  • Top Industries: Accounting
  • Company Size: 79% Large, 21% Medium

What Are Recent G2 Reviews of CSC Corptax?

What Are G2 Users Discussing About CSC Corptax?

GoSystem Tax RS

GoSystem Tax RS is professional tax software that provides a comprehensive tax preparation process that utilizes advanced cloud-native technology and a highly scalable workflow system. It offers access to a full line of federal, state, and local tax programs, plus multi-state returns. Combined with concurrent access and unrivaled import/export capabilities, firms can save time and automate workflows each new tax year. GoSystem Tax RS helps to eliminate manual data entry and ensure accuracy as you complete returns. With other built-in timesaving tools including a trial balance, batch processes, and paperless processing, GoSystem Tax RS delivers an end-to-end solution that will boost efficiency and the growth of your firm.

Average Rating: 3.9/5.0

Total Reviews: 31

How Do G2 Users Rate GoSystem Tax RS?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 8.7/10)
  • Quality of Support: 7.4/10 (Category avg: 8.6/10)
  • Ease of Use: 7.3/10 (Category avg: 8.7/10)
  • Ease of Admin: 8.3/10 (Category avg: 8.6/10)

Who Is the Company Behind GoSystem Tax RS?

  • Seller: Thomson Reuters
  • Year Founded: 2008
  • HQ Location: Toronto, CA
  • Twitter: @thomsonreuters
    150,224 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    36,803 employees on LinkedIn®
  • Ownership: NYSE:TRI

Who Uses This Product?

  • Top Industries: Accounting, Financial Services
  • Company Size: 84% Large, 13% Small

What Are Recent G2 Reviews of GoSystem Tax RS?

What Are G2 Users Discussing About GoSystem Tax RS?

CCH ProSystem fx Tax

CCH® ProSystem fx® Tax is a comprehensive tax compliance and productivity software suite designed for tax and accounting professionals. It offers a robust platform that integrates various aspects of tax preparation, ensuring accuracy and efficiency in managing client engagements. Key Features and Functionality: - Comprehensive Tax Compliance: Supports a wide range of tax returns, including individual, corporate, partnership, and non-profit filings, covering federal, state, and local jurisdictions. - Integrated Suite: Part of the ProSystem fx Suite, it seamlessly integrates with modules for tax planning, trial balance, fixed assets, practice management, document management, and more, facilitating a unified workflow. - Advanced Automation: Automates routine tasks such as form population, data entry, and calculations, reducing manual workload and minimizing errors. - Real-Time Collaboration: Enables multiple team members to work on the same return simultaneously, enhancing collaboration and reducing processing time. - Diagnostic Tools: Provides real-time error checking and data validation features to ensure compliance with the latest tax laws and regulations. Primary Value and User Solutions: CCH® ProSystem fx® Tax streamlines the tax preparation process by automating routine tasks and integrating various compliance modules, allowing professionals to handle more clients efficiently. Its comprehensive coverage ensures that firms can manage diverse client needs, from simple individual returns to complex corporate filings. The software's real-time collaboration and diagnostic tools enhance accuracy and compliance, reducing the risk of errors and penalties. By providing a unified platform for tax compliance and practice management, it enables firms to optimize their workflows, improve productivity, and deliver superior client service.

Average Rating: 4.1/5.0

Total Reviews: 130

How Do G2 Users Rate CCH ProSystem fx Tax?

  • Has the product been a good partner in doing business?: 7.7/10 (Category avg: 8.7/10)
  • Quality of Support: 8.3/10 (Category avg: 8.6/10)
  • Ease of Use: 8.1/10 (Category avg: 8.7/10)
  • Ease of Admin: 7.4/10 (Category avg: 8.6/10)

Who Is the Company Behind CCH ProSystem fx Tax?

  • Seller: Wolters Kluwer
  • Year Founded: 1987
  • HQ Location: Alphen aan den Rijn, NL
  • Twitter: @Wolters_Kluwer
    17,786 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    22,401 employees on LinkedIn®
  • Ownership: AMS:WKL

Who Uses This Product?

  • Who Uses This: Staff Accountant, Tax Manager
  • Top Industries: Accounting
  • Company Size: 37% Medium, 32% Small

What Are Recent G2 Reviews of CCH ProSystem fx Tax?

What Are G2 Users Discussing About CCH ProSystem fx Tax?

ProSystem fx Suite

ProSystem fx Suite is an integrated tax and accounting solution that allows you to organize and streamline your tax, accounting and workflow.

Average Rating: 4.0/5.0

Total Reviews: 62

How Do G2 Users Rate ProSystem fx Suite?

  • Has the product been a good partner in doing business?: 8.3/10 (Category avg: 8.7/10)
  • Quality of Support: 8.1/10 (Category avg: 8.6/10)
  • Ease of Use: 7.6/10 (Category avg: 8.7/10)
  • Ease of Admin: 8.1/10 (Category avg: 8.6/10)

Who Is the Company Behind ProSystem fx Suite?

  • Seller: Wolters Kluwer
  • Year Founded: 1987
  • HQ Location: Alphen aan den Rijn, NL
  • Twitter: @Wolters_Kluwer
    17,786 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    22,401 employees on LinkedIn®
  • Ownership: AMS:WKL

Who Uses This Product?

  • Top Industries: Accounting
  • Company Size: 59% Medium, 25% Small

What Are Recent G2 Reviews of ProSystem fx Suite?

What Are G2 Users Discussing About ProSystem fx Suite?

Nathan Calabrese
NC
Researched and written by Nathan Calabrese
Updated