PAC service provider successfully provides services of electronic invoicing to taxpayers including high volume issuers with multiple users in different sectors, such as: telecom m unications, finan cial sector, insurance government and retail. Beyond the maximum levels of security, many PAC service providers are aligned to international safety standards, w/hich offer even greater guarantees in its operations, regarding information security. Currently PAC service providers work closely with tax specialists, accountants and technologists of the private sector, to advise on their character of trusted third parties authorized by SAT, on solutions that meet the tax and technical regulations for the current fram ework for the electronic invoice. By bringing together the mass of specialists in regulatory and technical issues on electronic in voice in Mexico, PAC guide contributors of all the regimes and income levels, in the legitimate and safe ways to issue electronic tax invoices in Mexico. To ensure a comprehensive offer, the PAC ser vice providers integrates different technologies to communicate taxpayers with the tax authority. Thanks to the PAC service provider figure that enables the electronic invoicing model in Mexico; our country is recognized as a leader in the adoption of electronic invoice worldwide. Mexico has a key element in electronic invoicing that promotes the digitization of the public and private sector, generating real progress on competitiveness and incorporating all the industries to e commerce. The PAC service provider is a trusted third party in the operation of the electronic tax invoice, due to the authorization, regulation and audit executed by SAT.
1.3 Electronic Invoicing 2014 The technical scheme for XM L documents of electronic invoicing in Mexico is currently in its ver sion 3.2 and is defined by the Tax Code of the Federation as the rule for the issuance of electronic invoicing. For a digital document to become an electronic invoice, it requires that a PAC service provider, or the SAT itself perform the following validations on the electronic XM L file and that the document meets the technical specifications of the Appendix 20 of the RMF: •
The time period between the date of issuance of the document and the date on which it is intended to be certified not exceeding 72 hours.
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Verify that the document has not been previously certified by thePAC.