Many ezPaycheck payroll software customers contact us recently about Year 2013 Form 941. However IRS has not published the new Form 941 yet. We will inform all ezPaycheck users by email when the new version is released. You can also check the update information within ezPaycheck by clicking ezPaycheck top menu "help".
Your Form 941 is due by the last day of the month that follows the end of the quarter.
1. First Quarter: January, February, March
Quarter Ends: March 31
Form 941 is due: April 30
More information can be found here
http://www.halfpricesoft.com/business-blog/post/2011/04/12/Form-941-due-date.aspx