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Contact us Get answers to your questions about any of our tax and accounting solutions. Choose one of our brands to get started, so we can connect you with the right people.

For governments

Aumentum 

Land information and property tax software to help government agencies optimize revenue and serve their constituents. 

Research & guidance

Checkpoint 

Comprehensive research materials, editorial insight, productivity tools, online learning, news updates, and marketing resources for tax and accounting professionals. 

For accounting firms

CS Professional Suite 

The most comprehensive line of integrated software and services available to tax and accounting professionals, from sole practitioners to large accounting firms. 

For corporations

ONESOURCE 

Drive global tax compliance and accounting decision making with the industry’s most powerful portfolio of corporate technology solutions. 

For accounting firms

Onvio

A suite of innovative cloud-based software for tax and accounting professionals, which brings work seamlessly together into one online platform. 

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Aqueduct-Building -3-143
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Washington, D.C. 20005-4029

Argentina offices

Sistemas Bejerman

Tucumán 1471
Buenos Aires (C1050AAB)
Tel.: (+54) 0810-222-5253 ext 2,6

La Ley Checkpoint

Tucumán 1471
Buenos Aires (C1050AAB)
Tel.: 0810 – 222 – 5253

Australia office

Level 5, 100 Harris Street
Pyrmont, NSW 2009, Australia

Brazil office

São Paulo – SP

Av. Dr. Cardoso de Melo, 1855 – 13º andar
Vila Olimpia
CEP: 04548-005
Tel.: (11) 2159-0500
Fax: (11) 3704-5182

Av. Paulista, 1776 – 11°andar
Edifício Parque Avenida
Bairro Cerqueira César
CEP: 01310-200
Tel.:(11) 3382-1000

Rio de Janeiro – RJ

Av. Presidente Vargas, 309 – 11º andar – Centro
CEP: 20040-010
Tel.: (21) 3094-9300
Fax: (21) 3094-9350

Joinville – SC

Rua Ministro Calógeras, 343 – 7º andar – Bucarein
CEP: 89202-207
Tel.: (47) 3451-5500

Canada offices

2075 Kennedy Road
Toronto, Ontario M1T 3V3

333 Bay Street
Toronto, Ontario M5H 2R2

75 Rue Queen
Montreal, Quebec H3C 2N6

Chile office

Miraflores 383 – Piso 10
(Torre Centenario)
Santiago
(56-2) 2510 5000

Ireland office

Adelaide Chambers Peter Street
Dublin 8, Ireland

Mexico office

Av. Insurgentes Sur 800 – piso 14
Col. Del Valle, México
D.F. Benito Juárez C.P. 03100
Tel.:(01-55) 5351-9502

Peru office

Av. San Borja Sur # 1170
San Borja – Lima – Perú
Tel: 710-7101
Fax: 710-7110

United Kingdom office

1 Paul Julius Close
Blackwall Way
London E14 2EH
Tel: +44 (0)207-375-6869

Liverton Business Park
Exmouth EX8 2NR

The Senate
Southernhay
Exeter EX1 1UG

Chapel Bar
Nottingham NG1 6HQ