Document:
Indirect Tax Reference Model v2.0

Draft (A preliminary unapproved sketch, outline, or version.)

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Submitted By Mr Michael Roytman on 2007-10-29 3:33 pm UTC

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OASIS Tax XML TC / Specifications

Modified by

Mr Michael Roytman
2007-10-29 3:35 pm UTC

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Description

The purpose of this document is to present a model of the tax related information contained within the Messages exchanged between the participants involved in a business transaction, the primary purpose of which is not tax-related, but which may be subject to the imposition of an indirect tax. This model is intended to serve as a reference for any effort to analyze the related Messages (documents) of an implementation to verify that the indirect tax implications are adequately addressed, and as input to any effort to define Message-oriented specifications involving indirect taxation.
The model is the result of extensive business analysis conducted by the participants of the OASIS Tax XML Technical Analysis Sub-Committee, comprising indirect taxation experts from both industry and government tax authorities, and has been validated against the varied requirements of the European Union VAT regulations, the United States state sales tax regulations, the Canadian GST/HST regulations, and the Canadian Excise Duty and Tax domestic environment relevant requirements. In the EU, there is a core framework for VAT and for customs duties, although each Member State has its own variations. For Excise duties, the balance between core framework and Member State practice is even further skewed towards Member State practice.