Annual Budget and Financial Reports

Annual Operating and Capital Budget

Naperville's Annual Operating Budget and Capital Improvement Program represent the City's commitment to planning and maintaining services and programs linked to the City's mission as well as the long-term investment in the City's infrastructure. 

Naperville's operating budget is a short-term financial plan to fund operations for the budget's calendar year and provide day-to-day operational guidelines. The annual budget includes a Capital Improvement Program (CIP), which summarizes all significant capital outlays anticipated over the next five years.

Capital projects may include land acquisition, new building construction, additions to or renovations of existing buildings, construction or reconstruction of streets, utility infrastructure, equipment, and technology upgrades. The document includes project descriptions, financial requirements, and funding sources. The CIP is updated each year when the proposed operating budget is developed.

2026 Proposed Operating & CIP Budget (PDF)

    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 the proposed revenues and expenditures for the upcoming budget year are reviewed. 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 City’s most recent audit results. 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 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