MCS users are recommended to use a Microsoft Windows platform with the latest browsers Microsoft Edge, Chrome and Firefox. Using a different browser or operating system to access this web site may reduce site functionality.
If the above mentioned browsers are not installed on your machine, use the below links to download and install the browser.
Click Here to download the latest version of Google Chrome browser
Click Here to download the latest version of Mozilla Firefox browser
Click Here to download the latest version of Microsoft Edge browser
Screen Resolution -- To avoid unwanted scrolling, MCS recommends you use a personal computer with minimum screen resolution of 1280 x 720 pixels.

Cookies -- Blocking cookies on some browsers can reduce or disable important functionality of the MCS application. Check your browser settings to ensure cookies are enabled.
Pop-Up Blocker -- Your browser may have popup blocking software enabled. You will need to allow popup windows for the MCS application Web site to maximize its functionality. MCS will only produce popup windows that will benefit your computing experience.
Security -- MCS uses Secure Sockets Layer (SSL) security with 128-bit encryption from Verisign for the security of our users. For information about SSL security and Verisign certificates, please visit Verisign's Web site at www.verisign.com

Adobe Acrobat -- The MCS application website also displays PDF files of tax returns developed with Adobe Acrobat. If you do not have Adobe Acrobat Reader already on your computer, you may download this free product by visiting www.adobe.com/products/acrobat/
JavaScript -- If JavaScript is disabled or not available on your browser, this can reduce or disable important functionality of the MCS application Web site. Check your browser's options to ensure JavaScript is enabled.
For more information and technical assistance, feel free to call the Department's MCS customer service at (317) 615-7200.