ONESOURCE

ONESOURCE is a Thomson Reuters tax software brand for organizations and tax professionals. Its documented offerings include ONESOURCE Income Tax, corporate income tax software intended to help businesses prepare returns, calculate taxes, manage compliance, and meet filing requirements. The product page describes support for federal, state, and international tax matters, as well as trial-balance management, tax research, IRS e-filing, and integration with other ONESOURCE applications. The brand also includes ONESOURCE Determination, described by Thomson Reuters as global tax determination software. It automates tax calculations and supports reporting for sales and use tax, GST, VAT, and excise tax using current rates and rules. These offerings position ONESOURCE around tax calculation, preparation, reporting, and compliance rather than consumer-facing tax filing. Thomson Reuters presents ONESOURCE within its broader tax, audit, and accounting solutions. The available product evidence emphasizes corporate and organizational tax workflows, including domestic and international compliance. The sources do not establish the brand’s founding date, original founder, headquarters, or a distinct operating company; these details are therefore not asserted here.

The available evidence identifies ONESOURCE as a Thomson Reuters tax software brand, but does not give a founding date, launch chronology, or the identity of a founder. A dated corporate history for the brand cannot therefore be reconstructed from these sources. Thomson Reuters currently presents ONESOURCE among its tax, audit, and accounting software and research solutions. The product evidence describes two parts of the portfolio. ONESOURCE Income Tax is corporate income tax software for preparing business returns and handling tax compliance. The described capabilities include federal, state, and international tax calculations and reporting; trial-balance management; a customizable tax-law database; IRS electronic filing; and integration with related products such as ONESOURCE Tax Provision and the ONESOURCE International Tax Calculator. The page also names ONESOURCE Income Tax Essential and Direct Tax Essential as programs through which customers can access the software. ONESOURCE Determination is presented as global tax determination software. Its stated role is to automate calculations and reporting for sales and use tax, GST, VAT, and excise tax using current rates and rules. Together, these examples show a product portfolio focused on business tax calculation and compliance, rather than establishing a separate standalone company. Thomson Reuters’ current tax pages also present newer software and AI offerings, including CoCounsel Tax, but the supplied sources do not describe CoCounsel Tax as an ONESOURCE product. It is therefore treated as a separate Thomson Reuters offering in this dossier. The evidence does not establish ONESOURCE’s original launch date, headquarters, or detailed geographic sales footprint.

Business tax technology for corporate tax preparation, calculation, reporting, and compliance, provided as part of Thomson Reuters’ tax and accounting solutions.

• ONESOURCE Income Tax

  Corporate income tax software for business return preparation and compliance, with tax calculation, reporting, trial-balance management, research, IRS e-filing, and integrations described on the product page.

• ONESOURCE Determination

  Global tax determination software that automates calculations and reporting for sales and use tax, GST, VAT, and excise tax.

• ONESOURCE Income Tax Essential

  A named ONESOURCE Income Tax program described as supporting electronic filing of local, state, federal, and international corporate tax returns.

• Direct Tax Essential

  A named program described as helping customers manage tax compliance processes.

1. 1Thomson Reuters tax and accounting software and research solutionstax.thomsonreuters.com
2. 2Corporate income tax software: ONESOURCEtax.thomsonreuters.com
3. 3Products | Thomson Reuterstax.thomsonreuters.com
4. 4CoCounsel Tax - the AI tax assistant for tax professionals | Thomson Reuterstax.thomsonreuters.com
5. 5OneSourcewikidata.org
6. 6湯森路透推出運行於Oracle雲端基礎設施和Oracle自主資料庫上的ONESOURCE間接稅軟體ithome.com.tw
7. 7oneSOURCE Partners With instrutrack to Supply Instrument Database for Kiwi Medical Suppliesprweb.com