eFile & Pay - Browser Requirements

Browser Requirements

The system automatically checks your computer's Internet browser to see if it is compatible with the Iowa eFile & Pay system.

To avoid a service disruption when accessing eFile & Pay, please check your browser to see if it supports TLS v1.2 and 128 bit encryption. If it does you are up-to-date. If not, you must upgrade your browser.

Minimum browser requirements to use eFile & Pay:

  • Microsoft Internet Explorer 11 and higher
  • Firefox 31 through 81.0.2
    • There are currently issues reported with the newest release, 82.0+, and we are working to resolve those issues. This page will be updated when this issue has been resolved.
  • Chrome 38 and higher

To Upgrade Your Browser:

How to find out what version of the browser you are using:

  • Open your browser
  • Click on “Help” in the toolbar
  • Click on: About...