Is there a charge to pay instantly online or by phone?
No, these options are completely free!
How do I pay instantly online?
Click "Pay Bill" on the main website menu. To make an instant payment, you’ll need your Alliant Energy utility account number and your bank account information.
Note for Automatic Payment customers: The instant online payment amount will be withdrawn from your bank account in addition to your monthly Automatic Payment amount.
How do I pay instantly by phone?
Call 1-800-ALLIANT (800-255-4268) and say “Make a payment” to avoid waiting on hold.