# Best Tax Services Providers in Indianapolis, IN *By [Nathan Calabrese](https://research.g2.com/insights/author/nathan-calabrese)* 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. ## 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, PricewaterhouseCoopers (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=pricewaterhousecoopers-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) ## How Many Tax Services Providers Products Does G2 Track? **Total Products under this Category:** 124 ### Category Stats (Jul 2026) - **Average Rating**: 4.42/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product**: Baker Tilly (+0.04%) - Among all products in this category, Baker Tilly recorded the largest rating increase compared to last month *Last updated: July 20, 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 - 124+ 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. --- **Sponsored** ### Ada Ada is an enterprise Agentic Customer Experience (ACX) company that helps large organizations deploy, manage, optimize, and scale AI agents for customer service, with more than 550 AI agents deployed across the world's most demanding enterprise environments. Ada's core differentiator is the ACX Operating Model: the only approach in the category that pairs an enterprise AI platform with structured methodology and expert guidance. The logic behind it is direct: the best customer experiences come from businesses that own and operate their AI agents, not ones that depend on vendors to run them. The companies that own their AI capability are the ones that compound value. Ada's job is to help them get there. Ada delivers that ownership through three components: the ACX Platform (AI agent management across every channel and language, no engineering dependency required), ACX Practice (a structured methodology for building, governing, and scaling an ACX program), and ACX Experts (who work alongside internal teams to build lasting internal fluency). The ACX Platform is designed with these core components: - Reasoning Engine™: A patent-pending intelligence layer that powers the AI agent across all channels using shared customer context, business logic, and configurable policies, with built-in accuracy and safety controls. Consistent experience meets reduced overhead. - Conversation Hub: Deploy an AI agent across voice, messaging, email, and custom channels in 60+ languages, with structured handoff to human agents when escalation is needed. - Performance Center: Tools for building, testing, and optimizing AI agent behavior, including Playbooks for complex multi-step workflows (refunds, rebookings, authentication), Coaching for continuous improvement, and Simulations for safe pre-launch testing. Tracks resolution rate, CSAT, NPS, and custom KPIs. - Developer Toolkit: Pre-built connectors for Salesforce, Zendesk, and ServiceNow, plus APIs, SDKs, and an MCP Server for managing the AI agent from tools like Claude or ChatGPT. - Enterprise-grade security: SOC 2 Type II, GDPR, HIPAA, PCI DSS, and AIUC-1 certified, with Zero Data Retention and regional data residency. Ada was the first ACX platform to have achieved AIUC-1 certification, the world's first AI safety standard specifically designed for customer service agents—and Ada helped write it. Proven customer outcomes include: - IPSY (ecommerce) achieved 943% ROI on its AI investment within four months of using Ada's ACX platform alongside a 63% improvement in automated resolution rate and a 41% improvement in CSAT. Endy (retail) achieved an 85% automated resolution rate during a major national promotion and 75% CSAT during their warehouse sale. - eSky Group (travel) saw a 17-point increase in automated resolution in four months, a 19-point CSAT jump, and 200% ROI—running three brands across 50+ markets with one team on one platform. - Blackhawk Network (fintech) transformed into a mature ACX operation, automatically resolving ~50% of all incoming inquiries across brands and channels, and upskilling frontline agents with plans to expand AI across the entire enterprise. Across Ada's customer base, the impact extends beyond efficiency metrics. At ClickUp, support agents shifted from manually building chatbot content to specializing in product areas and contributing to lifecycle and retention strategy. At Endy, volume relief created new AI coaching and QA roles rather than headcount reductions. Ada is built for enterprise organizations with high-volume, complex support operations across industries including financial services, telecommunications, retail and ecommerce, travel, insurance, and technology. [Visit website](https://www.g2.com/external_clickthroughs/record?secure%5Bad_program%5D=ppc&secure%5Bad_slot%5D=category_product_list&secure%5Bcategory_id%5D=801&secure%5Bchosen_at%5D=2026-07-21T09%3A01%3A06Z&secure%5Bdisplayable_resource_id%5D=1896&secure%5Bdisplayable_resource_type%5D=Category&secure%5Bmedium%5D=sponsored&secure%5Bplacement_reason%5D=retargeted_product&secure%5Bplacement_resource_ids%5D%5B%5D=37339&secure%5Bprioritized%5D=false&secure%5Bproduct_id%5D=37339&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%2Fmilwaukee-wi-us&secure%5Btoken%5D=e5d2ae35611230aa36b6b3c3c82ab3afed7bcae33be3377dd95c5e4667e57f54&secure%5Burl%5D=https%3A%2F%2Fwww.ada.cx%2Flp%2Fconversational-ai-for-customer-service%2F%3Futm_source%3Dg2%26utm_medium%3Dcpc%26utm_campaign%3Dg2-clicks&secure%5Burl_type%5D=custom_url) --- ## What Are the Top-Rated Tax Services Providers Products in 2026? ### 1. [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:** https://www.linkedin.com/company/ernstandyoung (403,177 employees on LinkedIn®) **Who Uses This Product?** - **Company Size:** 70% Enterprise, 40% Mid-Market #### 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) ### 2. [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:** https://www.linkedin.com/company/kpmg-us (53,551 employees on LinkedIn®) **Who Uses This Product?** - **Top Industries:** Accounting - **Company Size:** 50% Mid-Market, 36% Small-Business #### 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) --- ### 3. [Sikich](https://www.g2.com/products/sikich/reviews) Sikich offers a formula of professional services uniquely crafted to address your business’s challenges and opportunities. Our comprehensive skillsets, obtained over decades of experience as entrepreneurs, business owners and industry innovators, allow us to provide insights and transformative services to help strengthen every dimension of your business. **Average Rating:** 4.1/5.0 **Total Reviews:** 10 **Who Is the Company Behind Sikich?** - **Seller:** [Sikich](https://www.g2.com/sellers/sikich) - **Year Founded:** 1982 - **HQ Location:** Chicago, Illinois - **LinkedIn® Page:** https://www.linkedin.com/company/sikich/ (2,311 employees on LinkedIn®) **Who Uses This Product?** - **Company Size:** 40% Mid-Market, 40% Small-Business #### What Are Recent G2 Reviews of Sikich? **"[Great service, thorough and clear scoping objectives](https://www.g2.com/survey_responses/sikich-review-8533346)"** **Rating:** 4.0/5.0 stars *— Scott H.* [Read full review](https://www.g2.com/survey_responses/sikich-review-8533346) --- **"[Outstanding Professional Services Agency](https://www.g2.com/survey_responses/sikich-review-8360276)"** **Rating:** 4.5/5.0 stars *— Perena M.* [Read full review](https://www.g2.com/survey_responses/sikich-review-8360276) --- #### What Are G2 Users Discussing About Sikich? - [What is Sikich used for?](https://www.g2.com/discussions/what-is-sikich-used-for) ## What Is Tax Services Providers? [Business Finance Providers](https://www.g2.com/categories/business-finance) ## What Software Categories Are Similar to Tax Services Providers? - [Accounting Firms ](https://www.g2.com/categories/accounting-firms) - [Bookkeeping Services Providers](https://www.g2.com/categories/bookkeeping-services) - [Financial Consulting Providers](https://www.g2.com/categories/financial-consulting) - [Business Process Outsourcing (BPO) Services](https://www.g2.com/categories/business-process-outsourcing-bpo-service) - [Auditing Services Providers](https://www.g2.com/categories/auditing-services)