Combined Federal/State Filing (CFSF) program state coordinator information FAQs

Frequently asked questions about the Combined Federal/State Filing (CFSF) program state coordinator information
Software Development

Modernized e-File (MeF) user guides and publications

General information and technical guidance for electronic return originators, software developers, and transmitters interested in transmitting tax returns through the MeF system.
Software Development
Software Developers

Filing Information Returns Electronically (FIRE)

Use the IRS Filing Information Returns Electronically (FIRE) system to file information returns.
Software Development
Tax Professionals