Everything City of Waukesha Homeowners Need to Know About the 2025 Property Tax Revaluation

As 2025 unfolds, property owners within the City of Waukesha, WI will receive updated property assessments — part of a city-wide effort to ensure fair and equitable taxation. This revaluation applies only to properties located within the City of Waukesha and does not impact properties in other areas of Waukesha County. While the process can seem complicated, understanding what to expect will help you feel more confident and prepared.

At The Hupke Team, we’re here to provide real estate guidance so you can confidently navigate your 2025 property revaluation, understand its impact on your home's value, and know what steps to take if needed.

📌 What Is a Property Tax Revaluation?

A property tax revaluation is a process in which your municipality reviews and updates the value of your property based on current market conditions. It ensures fairness by aligning assessed values with actual market trends — meaning you’re taxed based on what your property would likely sell for today.

Reassessments are required by Wisconsin state law at least once every five years, and 2025 marks a new cycle for many areas across the City of Waukesha.

🔍 Why the Revaluation Is Happening

• Property values change over time due to market fluctuations, economic conditions, and community development.

• Revaluation keeps values fair and accurate across neighborhoods.

• State law mandates regular reassessments to ensure equity and compliance.

🗓 Key Dates to Remember

The City Assessor's Office will be completing a full revaluation of every property in the City of Waukesha in 2025. This process ensures that all properties reflect their fair market value based on current market conditions. The City aims for assessments to be fair, uniform, and equitable, and follows the standards of the Wisconsin Department of Revenue and the International Association of Assessing Officers.

Key Dates:

• Real Estate Notices Mailed: Friday, April 25, 2025

• Assessment Roll Available: Friday, April 25, 2025

• Open Book Period: Monday, April 28 – Friday, May 16, 2025

• Initial Board of Review Hearing: Friday, June 6, 2025 at 9:00 a.m. (Council Chambers, City Hall)

🗓 For updates and further information, or to confirm dates have not changed,       visit the City of Waukesha Assessor’s Office.**

📬 What Will the Assessment Notice Include?

• Your property’s new assessed value

• Instructions for reviewing or questioning your assessment

• Contact information for your local assessor

🏠 What If My Assessed Value Went Up?

An increased assessment doesn’t necessarily mean a higher tax bill. Your new assessed value is used to calculate your share of taxes, but the final tax bill also depends on your municipality’s budget and approved tax rate.

Here’s why:

• If all property values increase proportionally, your tax share may stay the same or decrease.

• Tax rates (or “mill rates” — the amount of tax per $1,000 of assessed value) are determined by local budgets, not assessments alone.

• New construction or growth in the tax base may help offset increases for individual homeowners.

📊 What is Equalized Value?

Equalized value is used by the Wisconsin Department of Revenue to compare assessed property values across different municipalities. This helps ensure statewide fairness in how shared costs — like school taxes — are distributed.

Even if your local assessment changes, your equalized value helps determine how your property compares regionally. Equalized value is primarily used for distributing school and county taxes fairly among municipalities.

📝 Reviewing and Responding to Your Assessment

✅ Step 1: Check the Accuracy

Compare your home’s assessed value to recent sales in your area. Look at:

• Square footage

• Lot size

• Bedrooms/bathrooms

• Age and condition

✅ Step 2: Understand How Assessments Are Calculated

Assessors may use:

• Comparable sales (market approach)

• Cost to rebuild minus depreciation (cost approach)

• Income potential (income approach, for rentals)

✅ Step 3: Attend the Open Book Period

Use this time to:

• Meet with the assessor

• Ask questions

• Submit supporting documentation (e.g., comps, appraisals, photos)

Changes can be made during Open Book without filing a formal objection.

⚖️ Understanding the Board of Review Process

If you still disagree with your new value after Open Book, you may file a formal objection through the Board of Review (BOR).

The process:

1. Submit Form PA-115A to your local clerk at least 48 hours before the BOR hearing.

2. Present evidence (sales data, appraisals, photos, etc.)

3. Attend the hearing and be prepared to provide sworn testimony if requested.

The BOR is a formal, quasi-judicial setting. Be thorough and professional in your preparation.

For more detailed information regarding the Board of Review process, visit the Wisconsin Department of Revenue website or contact your local assessor’s office.

💰 Are There Property Tax Relief Options?

If your reassessed value leads to a higher tax bill, you may qualify for:

• Homestead Credit (for eligible low-income homeowners)

• Property Tax Deferral Loans (for qualifying seniors)

• Installment Payment Plans (available in many municipalities)

🏢 What Property Investors and Landlords Should Know

If you own rental properties or investment homes, the revaluation may impact your portfolio:

• Multi-family properties are often assessed using the income approach

• Keep financials current: income, vacancy, and expenses all matter

• Review assessments carefully and prepare documentation if needed

❓ Revaluation FAQ

Is this happening to every property?
Yes — this revaluation applies to all properties located within the City of Waukesha.

Will someone come into my house?
Not unless invited. Assessors use records, permits, and exterior data.

Do I need to do anything now?
Not until your notice arrives (April–May). Then review and decide next steps.

Is revaluation the same as a tax increase?
No. Value and taxes are related but not directly tied. Rates depend on municipal budgets.

Can I appeal if I disagree?
Yes. Start at Open Book, then move to the Board of Review if needed.

Can I ignore the notice?
We don’t recommend it. Even if the number seems fair, stay informed and prepared.

💼 How the Hupke Team Can Help

As local real estate professionals, we understand how confusing property assessments can feel — especially when the market shifts quickly. One of the best tools available is a Comparative Market Analysis (CMA - a report that compares your home to recent sales in your area).

We’re happy to provide a Comparative Market Analysis (CMA) as needed. A CMA can help you:

• Understand how your assessed value compares to similar home sales

• Identify discrepancies worth discussing during Open Book

• Gain clarity on your home’s real market value

While we do not assist with the Board of Review process or offer legal guidance, we can help you better understand your assessment notice from a real estate perspective.

🌟 Why Homeowners Trust The Hupke Team

With over 25 years of combined experience, The Hupke Team at RE/MAX Service First is proud to be a trusted resource for City of Waukesha homeowners. In 2024 alone, we closed 121 transactions totaling over $38 million in real estate sales.

Whether you're planning to make a move or simply want to feel confident about your 2025 assessment, we’re here to offer expert support and local insight tailored to your needs.

Jennifer Hupke - 262-613-2548
Mariah Marquardt - 414-551-9778
Jamie Boneck - 414-839-9325

Or email us Sold@hupketeam.com

The Hupke Team RE/MAX Service First proudly serves buyers and sellers across Southeastern Wisconsin, including but not limited to:

Brookfield | Greenfield | Muskego | Pewaukee | Waukesha
Franklin | Milwaukee | New Berlin | Sussex | West Allis