Current Standards

NACHA State Tax Change Portal

XML Tax Standards
  Glossary of XML Terms

2-D Bar Code Standards Including Vendor ID Codes - 2009 Final
 updated October 31, 2009
 [more on 2-d bar code standards]

Electronic Funds Transfer (EFT)
  TXP Tax Payment Banking Convention - Format and Explanation
  TXP Tax Type Codes and Amount Type Codes

Wireless Communications Sourcing Standards

Standards Development

NACHA IAT Implementation Information for States
 [updated September 3, 2009]

Fed-State E-File Modernization - StateMeF.com

XML Tax Standards Development

2-D Barcode Standards Development

[Latest Standards Development Meetings]

Other Information

FTA Roles and Responsibilities in Electronic Commerce Development

Electronic Commerce Best Practices [Sept 2000]

Tax Information Group for EC Requirements Standardization [TIGERS]
   TIGERS Accomplishments/Work In Progress