07/21/2026
🚨 **Attention Wisconsin Child Support Online Services (CSOS) Users!** 🚨
**Changes are coming later this summer!**
The way you log in to **Child Support Online Services (CSOS)** is changing. Your **current CSOS username and password will no longer work** after the transition.
**Here's what you should do now to be ready:**
âś… Update your contact information in CSOS, including:
• Your current email address
• A text-capable phone number
• Your mailing address
âś… Create a **myWisconsin ID** if you don't already have one. Visit **apps.wisconsin.gov** and click **"Sign Up"** at the bottom of the page.
Once the transition takes place, you'll sign in using your **myWisconsin ID** and verify your identity with a code sent by text, email, or generated by an authentication app.
Taking a few minutes now can help make your transition quick and hassle-free!
Please share this post to help others who use Wisconsin Child Support Online Services stay informed.