ONESOURCE is the world's most powerful tax technology platform that provides tax compliance and drives accounting decision-making for thousands of companies.

ONESOURCE is present at every stage of your tax journey, helping to meet the complete needs of every stakeholder in your tax department with innovative expertly supported solutions. You will be equipped with the intelligence, technology, and knowledge to find answers you can trust.

In Brazil, Thomson Reuters merged in its ONESOURCE and Mastersaf tax solutions suite, the industry's leading local solutions line. Through the ONESOURCE / Mastersaf platform our clients can meet the latest Brazilian tax obligations of the SPED system.

Learn more about ONESOURCE through the following modules:

ECF                                EFD-Reinf                                    eSocial 

Learn more about ONESOURCE through the following modules:

ECF                                EFD-Reinf                                    eSocial