Company lists · Data refreshed October 2026

Top 25 Tax calculator software companies worldwide

RevenueBase identified 344 company matches for tax calculator software companies worldwide as of October 2026 and tracks 11,388 professional contacts across them, including 4,366 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for tax calculator software companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 20, 2026. Country and city lists for tax calculator software companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 20, 2026 How this list was built
344Companies
11,388Contacts tracked
4,366Verified emails
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The 25 largest tax calculator software companies worldwide

Ranked by team size
Top 25 of 344 company matches for tax calculator software companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchKing Of Prussia, PA, United StatesHQ recorded Oct 20, 20261,001-5,0002,059 contacts →

Exact match

“Vertex is the Decision-to-Defense™ global indirect tax and compliance company.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
2Exact matchNew York, NY, United StatesHQ recorded Oct 20, 20261,001-5,0001,648 contacts →

Exact match

“Wolters Kluwer Tax & Accounting U.S.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
3Exact matchFranklin, United StatesHQ recorded Oct 20, 2026501-1,000569 contacts →

Exact match

“Drake Software, a private company founded in 1977, provides software solutions to over tax and accounting firms that file more than 40 million tax returns every year.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
4Exact matchMangaluru, IndiaHQ recorded Oct 20, 2026201-500320 contacts →

Exact match

“Winman Software India LLP, based in Mangaluru, is engaged in developing and distributing standardized software products with a special focus on income tax software for the Indian…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
5Exact matchLong Island City, NY, United StatesHQ recorded Oct 20, 2026201-500300 contacts →

Exact match

“TTI’s flagship product, Tax Series, is an all-inclusive SaaS solution that can handle all aspects of U.S.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
6Exact matchIrvine, CA, United StatesHQ recorded Oct 20, 2026501-1,000275 contacts →

Exact match

“SurePrep was founded in 2002 and is the leader in 1040 productivity for CPA firms.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
7Exact matchIstanbul, TürkiyeHQ recorded Oct 20, 202651-200257 contacts →

Exact match

“SNI is a Computer Technology Corporation providing Tax Compliance and Regulatory Reporting softwares, interfaces and technologies around the world.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
8Exact matchFayetteville, AR, United StatesHQ recorded Oct 20, 202651-200214 contacts →

Exact match

“Zenwork, through its Tax1099 and Compliancely brands, is a fast-growing digital tax compliance and regulatory reporting technology company, with 10+ years of experience powering…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
9Exact matchAhmedabad, IndiaHQ recorded Oct 20, 2026201-500204 contacts →

Exact match

“Inventyv Software Services Pvt.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
10Exact matchSan Francisco, FL, United StatesHQ recorded Oct 20, 202651-200190 contacts →

Exact match

“Instead is where tax work gets done.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
11Exact matchSão Paulo, BrazilHQ recorded Oct 20, 202651-200189 contacts →

Exact match

“Systax: The Evolution of Tax Intelligence.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
12Exact matchJuiz De Fora, BrazilHQ recorded Oct 20, 202651-200186 contacts →

Exact match

“Desde 2009, oferecemos soluções inteligentes que aprimoram a rotina de trabalho de profissionais contábeis e tributários, auxiliando na identificação de inconsistências e…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
13Exact matchUnited StatesHQ recorded Oct 20, 202610001+184 contacts →

Exact match

“Wolters Kluwer, TAA North America US Small Firms is part of Wolters Kluwer Tax & Accounting.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
14Exact matchRosenheim, GermanyHQ recorded Oct 20, 2026201-500157 contacts →

Exact match

“Agenda ist einer der führenden Software-Anbieter für die steuer- und wirtschaftsberatenden Berufe.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
15Exact matchLathrop, CA, United StatesHQ recorded Oct 20, 202651-200137 contacts →

Exact match

“CrossLink Professional Tax Solutions (CPTS) is a leading provider of professional tax software solutions for professional tax preparers across the United States.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
16Exact matchSan Francisco, United StatesHQ recorded Oct 20, 202651-200130 contacts →

Exact match

“Kintsugi is automating sales tax for every company globally.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
17Exact matchSao Paulo, BrazilHQ recorded Oct 20, 202651-200126 contacts →

Exact match

“A Jettax é o único ecossistema completo de automação fiscal, pensado para escritórios contábeis e empresas que buscam mais eficiência.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
18Exact matchTours, FranceHQ recorded Oct 20, 202651-200112 contacts →

Exact match

“Inqom c’est un logiciel moderne de production comptable et fiscale pensé pour la productivité, la qualité et la sécurité - Productivité : Nous pensons un monde où la productivité…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Oct 20, 202651-200108 contacts →

Exact match

“april partners with wealth management firms, banks, and SMB platforms to embed tax filing, planning, and insights directly into the financial platforms people use every day to…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
20Exact matchCollege Station, TX, United StatesHQ recorded Oct 20, 202611-50107 contacts →

Exact match

“Holistiplan, a tax planning software solution, helps financial planners be more comprehensive AND more efficient.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
21Exact matchWokingham, United KingdomHQ recorded Oct 20, 202651-200107 contacts →

Exact match

“The complete tax and accountancy practice software suite, powered by a single database.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
22Exact matchStaines-Upon-Thames Middlesex, United KingdomHQ recorded Oct 20, 202651-200105 contacts →

Exact match

“We are game changers.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
23Exact matchMadrid, SpainHQ recorded Oct 20, 202651-20087 contacts →

Exact match

“Declarando es el software con asesoría fiscal que ayuda a los autónomos a ahorrar en impuestos.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
24Exact matchAmsterdam, NetherlandsHQ recorded Oct 20, 202651-20068 contacts →

Exact match

“Iedereen heeft recht op een optimale fiscale aangifte.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
25Exact matchSao Paulo, BrazilHQ recorded Oct 20, 202611-5058 contacts →

Exact match

“Nós da REVIO, somos motivados em desenvolver tecnologia e prover gestão de dados e informações, para contribuir com as empresas no direcionamento do recolhimento correto de…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase

Showing 25 of 344 tax calculator software companies worldwide

See the full list, filter by size, metro and specialty, and access 4,366 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Tax calculator software companies worldwide at a glance

As of Oct 20, 2026
38.3%Verified-email coverage
33.1Average contacts per company
11-50Median size (employees)
2.9%Largest-city concentration · Sao Paulo
Oct 20, 2026Page data refreshed

Companies by employee count

1-10
158
11-50
124
51-200
42
201-500
11
501-1,000
4
1,001-5,000
2
10001+
2

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for tax calculator software companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “tax calculator software companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 4,366 professional contacts with verified work emails across the full matched dataset. 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 October 20, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Tax calculator software companies by location

2 lists · largest first

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

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “tax calculator software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many tax calculator software companies are there worldwide?

RevenueBase identified 344 company matches for tax calculator software companies worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Vertex INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most tax calculator software companies?

The United States leads with 113 companies, followed by Brazil (40). Every tax calculator software companies list by country and city is linked on this page.

Which city has the most tax calculator software companies?

Sao Paulo leads with 10 company records, followed by New York (5) and Jaipur (4).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 4,366 professional contacts with verified work emails tracked across these 344 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 20, 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 SmartSearch, 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.