Government » Departments F-M » Health & Human Services » Child Support
The Child Support Online Services website and app have your case information available 24/7/365. You are able to check on your balances, view recent payments, make online payments, and update your information. https://csos.wisconsin.gov/login
Financial information:
Case information:
Contact information:
To create an account or log into existing account for CSOS: https://csos.wisconsin.gov/registration/createlogon
OR visit the COS Information Page on DCF Website: https://dcf.wisconsin.gov/cs/csos/faq-logon
If you need assistance with your CSOS account, call (608) 264-6323 or toll free at (855)264-6323
More information regarding the help desk can be found at: https://dcf.wisconsin.gov/cs/csos/faq-logon
