Tax & Accounting Blog

Accounting CS Updated with Modernized e-File (MeF) Format

CS Professional Suite Accounting & Auditing Solutions March 31, 2015

With the March 26, 2015 Accounting CS release, Form 940, 941, and 944 e-filing now uses the Modernized e-File (MeF) format. In addition, Forms 943 and 945 are now available to e-file via the Modernized e-File (MeF) format.

The Thomson Reuters CS Professional Suite was the first vendor to be listed on the 2015 MeF 94x Provider Page at 

Step-by-step instructions for e-filing 94x forms are available in our Help & How-To Center, at

To check the availability and status of federal, state, and local forms for each state, visit our Accounting CS Payroll Compliance page at

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