# Best Tax Services Providers in Oklahoma City, OK ## How Many Tax Services Providers Products Does G2 Track? **Total Products under this Category:** 128 ### Category Stats (Aug 2026) - **Average Rating:** 4.42/5 (↓0.02 vs Jul 2026) The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** 1-800Accountant (+1.98%) - Among all products in this category, 1-800Accountant recorded the largest rating increase compared to last month _Last updated: August 05, 2026_ ## How Does G2 Rank Tax Services Providers Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 900+ Authentic Reviews - 128+ 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 Tax Services Providers ![G2 Grid® for Tax Services Providers plotting products by satisfaction and market presence](https://www.g2.com/categories/tax-services/grids.png?focus%5B%5D=1433018&focus%5B%5D=55613&focus%5B%5D=113590&focus%5B%5D=1405496&focus%5B%5D=1466358&focus%5B%5D=1341283&focus%5B%5D=10751&focus%5B%5D=161000) Highlighted products: Swanson Reed | Specialist R&D Advisors, Pilot, PwC, Inkle, Haven, TaxValet, Indinero, and Zeni. Underlying data: [Grid® JSON](https://www.g2.com/categories/tax-services/grids.json?focus%5B%5D=swanson-reed-specialist-r-d-advisors&focus%5B%5D=pilot&focus%5B%5D=pwc-pwc&focus%5B%5D=inkle-2024-11-18&focus%5B%5D=haven-2025-06-02&focus%5B%5D=taxvalet&focus%5B%5D=indinero&focus%5B%5D=zeni) **Sponsored** ### LineUpr LineUpr is a leading event app solution that empowers event organizers to create personalized and engaging apps for their events, that works for a hybrid, on-site or online event format. With its user-friendly interface and extensive customization options, LineUpr makes it effortless for event organizers to design and manage event apps without any technical expertise. The platform offers real-time updates, ensuring that attendees have the most up-to-date information at their fingertips. LineUpr also provides powerful attendee engagement features, including surveys, live polls, and networking functionalities, fostering interaction and gathering valuable feedback. Moreover, LineUpr's cost-effective pricing plans make it an attractive choice for events of all sizes. Discover how LineUpr can elevate your event experience and streamline communication between organizers and attendees by visiting our website (https://lineupr.com) or simply getting in touch with us. Here are 5 arguments why you should consider LineUpr as your next event app solution: 1. User-Friendly Interface: LineUpr is known for its intuitive and user-friendly interface, making it easy for event organizers to create and manage their event apps without the need for extensive technical knowledge or coding skills. If you organize many events you can easily duplicate older events or reuse existing content from older apps, which saves a lot of time. 2. Customization Options: The platform offers a wide range of customization options, allowing organizers to tailor the event app to their specific needs. This includes the ability to design app layouts, add event schedules, speaker profiles, interactive maps, and other relevant content. 3. Real-Time Updates and Notifications: LineUpr allows organizers to make real-time updates to the event app, ensuring that attendees always have the latest information at their fingertips. It also offers post notifications, enabling organizers to send important announcements and updates directly to app users. 4. Attendee Engagement Features: The platform offers features to enhance attendee engagement, such as surveys, live polls, and networking functionalities. These features can help facilitate interactions among participants and gather valuable feedback. Attendees can chat, share contact details or schedule appointments with each other. 5. Cost-Effectiveness: LineUpr's pricing model is designed to be cost-effective, especially for smaller events or organizations with limited budgets. It offers different pricing plans based on the size and duration of the event, providing flexibility for various event types. Creating an event app for just a few hundred dollars, gives it one of the best price-performance ratios in the industry. LineUpr is being used by thousands of event planners worldwide! You can simply try it out by creating a free account at https://lineupr.com. Feel free to get in touch with us and we are happy to give you a demo and answer all your questions! [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list_llm&secure%5Bcategory_id%5D=801&secure%5Bchosen_at%5D=2026-08-07T09%3A05%3A34Z&secure%5Bdisplayable_resource_id%5D=320&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=21019&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=21019&secure%5Bresource_id%5D=801&secure%5Bresource_type%5D=Category&secure%5Bsource_type%5D=category_page&secure%5Bsource_url%5D=https%3A%2F%2Fwww.g2.com%2Fcategories%2Ftax-services%2Flocations%2Foklahoma-city-ok-us&secure%5Btoken%5D=0c16959c5a5d930e488726d102f7191432f1db15ac6fbbf1735c1b2e96524856&secure%5Burl%5D=https%3A%2F%2Flineupr.com%2F&secure%5Burl_type%5D=company_website) ### [Ernst & Young](https://www.g2.com/products/ernst-young/reviews) One of the world's leading professional services organizations, helps companies across the globe to identify and capitalize on business opportunities. **Average Rating:** 4.1/5.0 **Total Reviews:** 20 #### Who Is the Company Behind Ernst & Young? - **Seller:** [Ernst & Young (E&Y)](https://www.g2.com/sellers/ernst-young-e-y) - **Year Founded:** 1989 - **HQ Location:** London - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=340d34cb6814593cb6be46462017d68a16b372058fc6a3ec69bc30c2ac8b9ee0&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fernstandyoung&secure%5Burl_type%5D=linkedin_company_website) 403,177 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 70% Large, 40% Medium #### What Are Recent G2 Reviews of Ernst & Young? **["Advisory and Implementation"](https://www.g2.com/survey_responses/ernst-young-review-11769267)** **Rating:** 4.0/5.0 stars _— Verified User in Consulting_ [Read full review](https://www.g2.com/survey_responses/ernst-young-review-11769267) **["Good company to work with for rich experience"](https://www.g2.com/survey_responses/ernst-young-review-10658599)** **Rating:** 4.5/5.0 stars _— Aavinashh L._ [Read full review](https://www.g2.com/survey_responses/ernst-young-review-10658599) #### What Are G2 Users Discussing About Ernst & Young? - [Who owns EY India?](https://www.g2.com/discussions/who-owns-ey-india) - [Why is EY famous?](https://www.g2.com/discussions/why-is-ey-famous) - [What is Max Ernst known for?](https://www.g2.com/discussions/what-is-max-ernst-known-for) - [What is Ernst short for?](https://www.g2.com/discussions/what-is-ernst-short-for) ### [KPMG](https://www.g2.com/products/kpmg/reviews) We offer broad management consulting skills including technology enablement. **Average Rating:** 4.2/5.0 **Total Reviews:** 22 #### Who Is the Company Behind KPMG? - **Seller:** [KPMG](https://www.g2.com/sellers/kpmg-e2874d4d-01ea-4fab-aa80-7344e39b9d73) - **HQ Location:** New York - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=6484382897b6c40df8932121e1811ba762577fa5b7c029aabc8189b25bf072fc&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fkpmg-us&secure%5Burl_type%5D=linkedin_company_website) 53,551 employees on LinkedIn® #### Who Uses This Product? - **Top Industries:** Accounting - **Company Size:** 50% Medium, 36% Small #### What Are Recent G2 Reviews of KPMG? **["The greatest financial service"](https://www.g2.com/survey_responses/kpmg-review-7640920)** **Rating:** 5.0/5.0 stars _— John M._ [Read full review](https://www.g2.com/survey_responses/kpmg-review-7640920) **["KPMG - Right Choice"](https://www.g2.com/survey_responses/kpmg-review-8605228)** **Rating:** 4.0/5.0 stars _— Verified User in Consulting_ [Read full review](https://www.g2.com/survey_responses/kpmg-review-8605228) ### [Grant Thornton](https://www.g2.com/products/grant-thornton/reviews) Grant Thornton is a firm that offers three main service including Audit/Assurance, Tax and Advisory to help organizations pursue growth holistically whether through revenue improvement, leadership, mission fulfillment, or innovation. **Average Rating:** 4.8/5.0 **Total Reviews:** 3 #### Who Is the Company Behind Grant Thornton? - **Seller:** [Grant Thornton](https://www.g2.com/sellers/grant-thornton) - **Year Founded:** 1924 - **HQ Location:** Chicago, Illinois, United States - **Twitter:** @ThorntonBenefit 373 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=b6e5e65f1df963cfe91bd14ee1afb9a6588d1f66fc33ce7833dbe4b1f05e48a4&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fgrant-thornton-us&secure%5Burl_type%5D=linkedin_company_website) 11,671 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Large #### What Are Recent G2 Reviews of Grant Thornton? **["Grant Thornton are trusted advisors whom help us implement industry leading solutions"](https://www.g2.com/survey_responses/grant-thornton-review-9754512)** **Rating:** 4.5/5.0 stars _— Joanthan F._ [Read full review](https://www.g2.com/survey_responses/grant-thornton-review-9754512) **["Indeed Big 5 !"](https://www.g2.com/survey_responses/grant-thornton-review-7498002)** **Rating:** 5.0/5.0 stars _— Prasad B._ [Read full review](https://www.g2.com/survey_responses/grant-thornton-review-7498002) #### What Are G2 Users Discussing About Grant Thornton? - [What is Grant Thornton used for?](https://www.g2.com/discussions/what-is-grant-thornton-used-for) ### [Eide Bailly](https://www.g2.com/products/eide-bailly/reviews) Eide Bailly provides 54,000 clients across the US with core services of audit & assurance and tax, as well as expanded services. **Average Rating:** 2.5/5.0 **Total Reviews:** 2 #### Who Is the Company Behind Eide Bailly? - **Seller:** [Eide Bailly](https://www.g2.com/sellers/eide-bailly) - **HQ Location:** United States Oval Historic District, New York, United States - **Twitter:** @EideBaillyLLP 2,995 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=28240f6958c98fc102a7ec2d43986b8e473458d14b5ea3d56e15cd0fb50d4e3b&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Feide-bailly-llp&secure%5Burl_type%5D=linkedin_company_website) 3,785 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 50% Medium, 50% Small #### What Are Recent G2 Reviews of Eide Bailly? **["Their robust business analysis and sprint performance was most impressive."](https://www.g2.com/survey_responses/eide-bailly-review-4370550)** **Rating:** 5.0/5.0 stars _— Jan N._ [Read full review](https://www.g2.com/survey_responses/eide-bailly-review-4370550) #### What Are G2 Users Discussing About Eide Bailly? - [What is Eide Bailly used for?](https://www.g2.com/discussions/eide-bailly-what-is-eide-bailly-used-for) - [What is Eide Bailly used for?](https://www.g2.com/discussions/what-is-eide-bailly-used-for) Spotlight Categories [Anti Money Laundering Software](https://www.g2.com/categories/anti-money-laundering) [Experience Management Software](https://www.g2.com/categories/experience-management) [Conversation Intelligence Software](https://www.g2.com/categories/conversation-intelligence) [Performance Management Software](https://www.g2.com/categories/performance-management) [Contact Center Workforce Software](https://www.g2.com/categories/contact-center-workforce) Similar Categories - [409A Valuations Providers](/categories/409a-valuations-providers) - [Accounting Firms](/categories/accounting-firms) - [Auditing Services](/categories/auditing-services) - [Bookkeeping Services](/categories/bookkeeping-services) - [Business Process Outsourcing (BPO) Service](/categories/business-process-outsourcing-bpo-service) - [Enterprise Performance Management (EPM) Consultants](/categories/enterprise-performance-management-epm-consultants) - [Financial Consulting](/categories/financial-consulting) - [Investment Firms](/categories/investment-firms) - [Other Business Finance](/categories/other-business-finance) - [Tax Credit Providers](/categories/tax-credit-providers) [Browse Tax Services Themes](/categories/tax-services/themes) ![Nathan Calabrese](/assets/transparent-ad5be28fbcd25b7b08d2cebe1d957125437fb5407d75ee717965ad22c8808791.gif "Nathan Calabrese") NC Researched and written by [Nathan Calabrese](https://research.g2.com/insights/author/nathan-calabrese) Updated October 3, 2024 Tax services are offered by firms which specialize in filing and preparing taxes. Often these services are provided by [accounting firms](https://www.g2.com/categories/accounting-firms). Tax firms use their in-depth understanding of complex regulations to offer expertise and guide corporations through the tax process. These services can often save businesses time and money, as well as help ensure legal compliance. Corporations will usually work with firms year-round but will have the most contact in the time leading up to important state and federal tax deadlines. Businesses of all sizes and industries work with these providers and generally assign their accounting departments to coordinate with the firm. Show More