Annual Budget and Financial Reports

Annual Operating Budget

The adopted Annual Operating Budget is provided below in PDF format for your convenience. The budget includes an overview section designed to reduce the level of difficulty for readers unfamiliar with public budgeting systems. The budget provides comprehensive information for staff to use as a financial policy and day-to-day operation guidelines. The document is intended to be a tool for managing daily operations.

Capital Improvement Program

Included in the annual budget is an updated Capital Improvement Program (CIP), which is a plan summarizing all major capital expenditures over the next five years. The plan provides the structure for the City to plan future projects. The CIP includes a description of each approved project, along with detailed financial requirements and financing sources. A project qualifies for inclusion in the CIP if it meets the following criteria:

  • Has a minimum value of $50,000;
  • Has a multiple-year useful life; and
  • Results in a fixed asset.

    Budget Process

    The budget development process is extensive and includes a series of discussions between staff and the City Council. Discussions are structured as public workshops and review the proposed revenues and expenditures for the upcoming budget year. Additionally, workshops address operating and capital improvement budgets across all City funds and departments.

    2026 Budget Workshops

    • Monday, Sept. 29 - Workshop #1 (Capital Improvement Program)
    • Tuesday, Oct. 28 - Workshop #2 (Operating Budget)
    • Monday, Nov. 10 - Workshop #3 (2026 Budget Overview)

    All workshops begin at 6 p.m. in Council Chambers at the Naperville Municipal Center.

    City Council Financial Updates

    Reports to the City Council provide an overview of the current status of the City's finances so that Naperville's policymakers can take measured approaches to the City's budget.

    Current Year - 2025

    Budget Reports

    The City reviews each department's and fund's financial position monthly. Reports on the City’s financial position are provided below. 

    Current Year - 2025

    Previous Year - 2024

    Annual Comprehensive Financial Report

    The Annual Comprehensive Financial Report (ACFR) details the results of the City’s most recent audit. Past reports are linked below. State law, as well as local ordinances, require the City to publish the report within six months of the close of each fiscal year, including a complete set of financial statements presented in conformity with generally accepted accounting principles (GAAP) and audited in accordance with generally accepted auditing standards by a firm of licensed certified public accountants.

    Payroll Budget Report

    Illinois Public Act 097-0609 (5 ILCS 120-7.3), effective Jan 1, 2012, requires municipal employers participating in the Illinois Municipal Retirement Fund to post employee compensation information. Information on employee total compensation packages equal to or exceeding $150,000 a year must be posted at least six days before approval. Employees with a total compensation package exceeding $75,000 per year must be posted within six days of budget approval.

    To be fully transparent, the City of Naperville posts the complete City payroll budget at its discretion. The budget reflects employees on the payroll and budgeted individual benefit packages based on participation for the specified calendar year. Union wage and benefit increases are included as per agreed contracts; general wage increase assumptions have been applied across all other employee groups.

    IMRF Employer Cost & Participation Information

    Illinois Public Act 101-0504, which amended the Illinois Pension Code, requires municipalities that participate in the Illinois Municipal Retirement Fund (IMRF) to post a link to IMRF’s Employer Cost & Participation Information webpage on the municipality’s website.

    Transparency in Coverage – Machine-Readable Files

    The Transparency in Coverage Act final rule, released on October 29, 2020, requires health plans and carriers to publicly disclose pricing information via machine-readable files (MRFs). MRFs are intended for third-party technology developers, as they are written in computer code, not English. Click here to access the City of Naperville MRF. 

    Annual Treasurer's Report

    Each year, municipal treasurers prepare and file an account of monies received and expenditures incurred during the preceding fiscal year as specified by the State of Illinois under statute 65 ILCS 5/3.1-35-65.

    The reports provided below include all money received and paid by the City of Naperville during the specified year and a summary statement of operations for all funds and account groups.

    Collective Bargaining Agreements

    The following are the current collective bargaining agreements for the City of Naperville.

    Truth in Taxation Notices

    Finance Department