How do you pay your bill for Alliant Energy?

As of 2015, Alliant Energy offers several payment methods, including a one-time payment via phone or online. Alliant Energy customers can also set up automatic payments that withdraw money from a bank account to pay the bill every month.

Customers looking to pay with cash, money order or check can pay from a local Western Union Convenience Pay location for an additional $1 fee, or they can mail checks or money orders to Alliant Energy in a return envelope along with a payment stub. Alliant Energy offers a budget billing system in which a customer receives a bill for the same set amount each month based on his annual average usage.