Naperville's strong finances contribute to making the community an outstanding place to live, work and play. In 2025, both Moody's Investors Service and Standard & Poor's Ratings Services conducted a review of the City's finances and retained Naperville's AAA rating, the highest possible, making this the 30th year the City has held this rating. The City's superior credit position, financial health, strong local economy, diverse tax base, and balanced financial operations were factors in the decision.
City Finances
New eBill Portal NOW LIVE
The City’s new and improved eBill portal is live. Click here to enroll now.
ACTION NEEDED FOR CURRENT EBILL CUSTOMERS
To maintain uninterrupted eBill service, current users must re-enroll in the new system with a new username and password before January 1, 2026. Users who do not re-enroll before January 1 will revert to paper billing.
To enroll, you will need your account number, exactly as it appears on your bill (including dashes), and your ZIP code. Once enrolled, you can set up a new profile and account preferences, including autopay.
Current autopay users: The old eBill system is being deactivated, so January payments will not auto-deduct. Please enroll in the new portal and set up auto-pay again to ensure your January payment is processed.
The Finance Department ensures a solid financial foundation for the City of Naperville and its residents. It also provides the public, City Council, and staff members with the financial analysis needed to develop appropriate policies and understand the City's fiscal condition.
View Bids/RFPs/RFQs
Looking to do business with the City? View available bids, RFPs and RFQs.
Go to DemandStarUtility Bill Payment Options
The City of Naperville offers a number of convenient ways to pay your monthly utility bill.
View the OptionsEnergy Calculator
The U.S. Department of Energy home appliance and electronic energy calculator allows you to estimate your annual energy usage and cost to operate specific products.
Visit the CalculatorOpen Checkbook
Delve into the City of Naperville's expenditures on Open Checkbook, an interactive site that is updated weekly to reflect the City's most recent spending.
View the CheckbookInside this section
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Annual Budget and Financial Reports
The budget displays the revenue and expenditures expected for the year overall and by department. The ACFR details the results of the city's most recent year-end audit.
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Purchasing and Bids
The City strives to ensure that tax payers receive the maximum value of each dollar spent by purchasing quality goods and services at the lowest possible cost.
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Taxes and Financial Forms
The State of Illinois and the City of Naperville collect and administer a variety of state and locally imposed taxes to fund services and capital projects that benefit the community.
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Utility Services and Billing
Utility bills are distributed monthly. The Finance Department accepts a number of payment options, including cash, check, credit cards and bank-drafting. You can also sign up to pay your bills online.
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General Billing
General billing includes, but is not limited to, non-utility items such as fire alarm monitoring, police and fire services, and claims for damage to City property.
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Water Street TIF District
The Water Street TIF District was approved in 2007 and, in 2015, was extended by a period of seven years for a total term of 30 years.