IMPORTANT NOTIFICATION: Please note that the mailing address for Shareowner Services has changed to:

Alliant Energy Shareowner Services
4902 N. Biltmore Lane
Madison WI 53718

The post office box 14720 has been CLOSED and should no longer be used effective June 4, 2024. Thank you.

Manage your account online

With Alliant Energy's Shareowner Online website, you can:

  • Examine reinvestment and certificate account details and balances
  • Obtain payment information
  • Change address information
  • Find and print tax information
  • Open a new account at any time

The site is secure, private and easy to use – and it’s free!

Want to learn more? View an online demo

Get started today! Enroll in Shareowner Online

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