Company lists · Data refreshed September 2026

Top 25 Tax preparation firms worldwide

Name: Tax preparation firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 16,301 companies tracked

RevenueBase identified 16,301 tax preparation firms worldwide as of September 2026 and tracks 138,279 professional contacts across them, including 23,097 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers tax preparation firms worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 22, 2026. Country and city lists for tax preparation firms follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 22, 2026 86% judged on-target in blind review

16,301Companies

138,279Contacts tracked

23,097Verified emails

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The 25 largest tax preparation firms worldwide

Ranked by team size

Top 25 of 16,301 tax preparation firms worldwide, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to tax preparation firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	H&r Block	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 22, 2026	10001+	59,451 contacts →
	Indirect evidence “H&R Block’s purpose is simple: To provide help and inspire confidence in our clients and communities everywhere.” Source: RevenueBase Database · checked Sep 22, 2026
2	Liberty TAX	Strong evidence	Hurst, TX, United StatesHQ checked Sep 22, 2026	n/a	6,260 contacts →
	Strong evidence “Liberty Tax is income tax preparation at its best: friendly, accurate, and with a money back guarantee.” Source: RevenueBase Database · checked Sep 22, 2026
3	Block Advisors	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 22, 2026	1,001-5,000	1,379 contacts →
	Indirect evidence “We are Block Advisors by H&R Block.” Source: RevenueBase Database · checked Sep 22, 2026
4	H&r Block Canada	Strong evidence	Calgary, AB, CanadaHQ checked Sep 22, 2026	5,001-10,000	889 contacts →
	Strong evidence “We’re Canada’s leading tax preparation firm for over 60 years – delivering value to Canadians by our expertise and knowledge in handling all tax situations and by our commitment…” Source: RevenueBase Database · checked Sep 22, 2026
5	H&r Block Australia	Partial evidence	Thornleigh, AustraliaHQ checked Sep 22, 2026	501-1,000	412 contacts →
	Partial evidence “As Australia’s largest preparer of personal income tax returns, with over 400 offices across Australia, expert help is never far away.” Source: RevenueBase Database · checked Sep 22, 2026
6	Cohesive	Indirect evidence	Exton, PA, United StatesHQ checked Sep 22, 2026	501-1,000	364 contacts →
	Indirect evidence “Cohesive is a leading solutions provider and systems integrator for IBM Maximo.” Source: RevenueBase Database · checked Sep 22, 2026
7	Advantage ONE TAX Consulting	Partial evidence	Sterling, VA, United StatesHQ checked Sep 22, 2026	201-500	347 contacts →
	Partial evidence “Advantage One Tax Consulting is a multi-disciplinary group of highly experienced tax professionals who understand the tax practice in its true spirit, examine the issues it faces…” Source: RevenueBase Database · checked Sep 22, 2026
8	Taxslayer	Partial evidence	Augusta, GA, IndiaHQ checked Sep 22, 2026	201-500	289 contacts →
	Partial evidence “For 60 years, TaxSlayer has been empowering Americans to take control of their taxes with easy-to-use, reliable software backed by U.S-based support.” Source: RevenueBase Database · checked Sep 22, 2026
9	Mayatax	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	501-1,000	269 contacts →
	Indirect evidence “Growth exposes financial weakness.” Source: RevenueBase Database · checked Sep 22, 2026
10	FBC Farm And Small Business TAX Consultants	Indirect evidence	Calgary, AB, CanadaHQ checked Sep 22, 2026	201-500	260 contacts →
	Indirect evidence “For more than 70 years, our focus has always been to bring financial peace of mind to our Canadian business owners.” Source: RevenueBase Database · checked Sep 22, 2026
11	Sureprep India Pvt.Ltd	Strong evidence	Mumbai, IndiaHQ checked Sep 22, 2026	501-1,000	256 contacts →
	Strong evidence “Providing tax preparation products and solutions to the accounting profession to increase productivity.” Source: RevenueBase Database · checked Sep 22, 2026
12	taxbuddy.com	Strong evidence	Mumbai, IndiaHQ checked Sep 22, 2026	n/a	240 contacts →
	Strong evidence “Welcome to TaxBuddy, your one-stop solution for all your tax preparation and filing needs- happy users across 2600 towns in India - 4.9 star Google rating from customers - Led by…” Source: RevenueBase Database · checked Sep 22, 2026
13	Accounting & TAX Services	Partial evidence	United StatesHQ checked Sep 22, 2026	n/a	203 contacts →
	Partial evidence “Since 1982, ATS has been a leader in providing quality tax, accounting and financial services to small businesses and individuals.” Source: RevenueBase Database · checked Sep 22, 2026
14	MBE Cpas	Partial evidence	Baraboo, WI, United StatesHQ checked Sep 22, 2026	51-200	201 contacts →
	Partial evidence “We are driven by more than a quality tax return, we provide effective solutions to help you, your family, and your business succeed.” Source: RevenueBase Database · checked Sep 22, 2026
15	Taxhawk, INC	Indirect evidence	United StatesHQ checked Sep 22, 2026	51-200	175 contacts →
	Indirect evidence “Background TaxHawk, Inc.” Source: RevenueBase Database · checked Sep 22, 2026
16	Taxwell	Partial evidence	Franklin, NC, United StatesHQ checked Sep 22, 2026	1,001-5,000	136 contacts →
	Partial evidence “Taxwell is a leading digital tax filing platform formed in 2022 from the combination of Drake Software® and TaxAct®.” Source: RevenueBase Database · checked Sep 22, 2026
17	Dark Horse Cpas	Partial evidence	Cardiff, CA, United KingdomHQ checked Sep 22, 2026	51-200	134 contacts →
	Partial evidence “Dark Horse CPAs is a leading CPA firm specializing in comprehensive tax and accounting advisory services tailored for small businesses.” Source: RevenueBase Database · checked Sep 22, 2026
18	HSJ Accountants, Business & TAX Advisors	Partial evidence	Newport, United KingdomHQ checked Sep 22, 2026	51-200	134 contacts →
	Partial evidence “Award winning accountants & tax advisors based in Newport, South Wales.” Source: RevenueBase Database · checked Sep 22, 2026
19	Taxaudit	Indirect evidence	Folsom, CA, United StatesHQ checked Sep 22, 2026	201-500	130 contacts →
	Indirect evidence “TaxAudit.com is brought to you by the audit experts at TaxResources, Inc.” Source: RevenueBase Database · checked Sep 22, 2026
20	Scheffel Boyle	Indirect evidence	Alton, IL, United StatesHQ checked Sep 22, 2026	51-200	129 contacts →
	Indirect evidence “Scheffel Boyle started as a hometown firm, and although we have grown significantly during our over 100 years in business, we still have the local feel our clients appreciate.” Source: RevenueBase Database · checked Sep 22, 2026
21	Accountable	Partial evidence	Brussels, BelgiumHQ checked Sep 22, 2026	51-200	128 contacts →
	Partial evidence “Accountable frees you from the hoops and hurdles of being independent by giving you the tools you need to pay your taxes and manage your business.” Source: RevenueBase Database · checked Sep 22, 2026
22	Lavine, Lofgren, Morris & Engelberg, LLP	Indirect evidence	La Jolla, CA, United StatesHQ checked Sep 22, 2026	51-200	118 contacts →
	Indirect evidence “Since 1985, we’ve built a firm where clients receive the highest quality of services, where our people play an important role as they grow professionally and where we as a firm…” Source: RevenueBase Database · checked Sep 22, 2026
23	Debitam	Partial evidence	42-44 Bishopsgate, United KingdomHQ checked Sep 22, 2026	51-200	104 contacts →
	Partial evidence “Online Accounting Service \| Bookkeeping \| Payroll \| Personal Tax Return Filing to HMRC \| Corporation Tax Filing \| HMRC ONLINE FILING: Our aim is to help small business owners` tax…” Source: RevenueBase Database · checked Sep 22, 2026
24	Mytaxfiler	Strong evidence	Plano, TX, United StatesHQ checked Sep 22, 2026	51-200	100 contacts →
	Strong evidence “At MyTaxFiler, we offer more than just tax preparation-we provide peace of mind.” Source: RevenueBase Database · checked Sep 22, 2026
25	Softron TAX	Strong evidence	Mississauga, ON, CanadaHQ checked Sep 22, 2026	11-50	98 contacts →
	Strong evidence “Mission "To be a leader in the Canadian tax preparation industry by providing friendly and professional services at competitive prices." Description 100 % Canadian Owned and…” Source: RevenueBase Database · checked Sep 22, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: tax preparation firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names tax preparation firms.
Partial evidence: Its own public description names part of tax preparation firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name tax preparation firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 16,301 tax preparation firms worldwide

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Tax preparation firms worldwide at a glance

As of Sep 22, 2026

16.7%Verified-email coverage

8.5Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Houston

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

12,659

11-50

2,945

51-200

379

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among tax preparation firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: Every country. Country and city lists for tax preparation firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “tax preparation firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names tax preparation firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among tax preparation firms, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 23,097 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 22, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Tax preparation firms by location

52 lists · largest first

Every Tax preparation firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names tax preparation firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many tax preparation firms are there worldwide?

RevenueBase identified 16,301 tax preparation firms worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

H&r Block, headquartered in Kansas City, tops this list with the largest team on record.

Which country has the most tax preparation firms?

The United States leads with 8,991 companies, followed by Germany (1,064) and Canada (927). Every tax preparation firms list by country and city is linked on this page.

Which city has the most tax preparation firms?

Houston leads with 190 headquartered companies, followed by New York (189) and London (105).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 23,097 verified decision-maker contacts tracked across these 16,301 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 22, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.