The letter arrived in May. My property taxes were increasing by nearly forty percent. No renovations, no new construction, no change in my home. The county had simply decided my house was worth more. I was looking at an extra three thousand dollars a year. I panicked, then called my realtor.

I thought appeals were between the tax assessor and me. I was wrong. My realtor couldn’t represent me at the formal hearing, which required an attorney or tax specialist. But her role in building my case was essential.

The first thing she did was pull comparables. Not the ones the assessor used, but recent sales of truly similar homes in my immediate area. She found five properties that had sold in the last six months. All were similar in size, age, and condition. All sold for significantly less than my assessed value.

She also provided a market analysis showing that my neighborhood values had flattened, not spiked. The assessor had used data from a more expensive subdivision nearby. My realtor showed that those homes weren’t comparable, different school district, different lot sizes, different amenities.

Next, she documented my home’s condition. The assessor’s file assumed everything was in excellent shape. It wasn’t. My roof was fifteen years old. The HVAC was original from 2002. The kitchen needed updating. My realtor helped me document these deficiencies with dated photos and notes.

She also knew the local appeal process. Every county has different rules, deadlines, and required forms. Missing a deadline by one day can forfeit your appeal. My realtor walked me through the timeline. She told me which evidence mattered most. She saved me from filing an incomplete packet.

A realtor can’t appraise your home; that requires a licensed appraiser. But a realtor can provide a broker’s price opinion, which is often accepted in informal appeals. My realtor’s BPO came in thirty thousand dollars below the assessed value. That document became the centerpiece of my case.

She also knew when to refer me to specialists. Once my informal appeal was denied, she recommended a property tax consultant who represented me at the formal hearing. That consultant won my case, reducing my assessed value by twenty-five thousand dollars. But without my realtor’s initial work, the consultant would have started from zero.

Not every appeal requires a specialist. Many homeowners win informal appeals with just a realtor’s comparative market analysis. If your home is clearly overvalued compared to recent sales, start with your realtor. They can help you decide whether to fight alone or hire backup.

The key is acting quickly. Appeal deadlines are often thirty to sixty days after tax notices are mailed. My realtor had warned me about this months earlier. When the letter arrived, I was ready. I already had my comparables gathered. I already had photos of my home’s deficiencies. I didn’t scramble.

If your appeal is denied, your realtor can also help you plan for next year. What evidence was missing? What comparables did the assessor reject? What repairs or updates might actually increase your value? My realtor helped me understand the assessor’s logic so I could make smarter decisions going forward.

A realtor’s role in a tax appeal is limited but valuable. They cannot practice law. They cannot provide formal appraisals. But they know your local market better than almost anyone. They can gather the sales data that assessors often miss. They can help you decide whether to appeal informally or hire a specialist.

I won my appeal. My taxes dropped back to nearly their original level. The process took three months and cost me nothing except my realtor’s time; she didn’t even charge me. She said helping clients with appeals was part of her job. That’s the kind of realtor you want.

If you’re facing a shocking tax increase, call your realtor before you do anything else. Ask for comparables. Ask for a broker’s price opinion. Ask about deadlines and local rules. You might win without hiring anyone else. And even if you need a specialist, your realtor’s groundwork will make their job easier and cheaper.

There’s so much more to learn about protecting your investment. Our website is filled with articles on property taxes, appeals, and working with trusted professionals. Head over and explore, because overpaying taxes is never required.

References

Chicago Association of REALTORS®. (2024, November 3). *Property Tax Appeals*. https://chicagorealtor.com/realtor-tools/property-tax-appeals/

Realtor.com. (2025, May 9). *5 Steps for Appealing Your Property Taxes and Saving Money*. https://www.realtor.com/advice/finance/appeal-property-taxes-save-money/

Illinois Department of Revenue. (2023, December 18). *Assessment Appeals – Property Tax*. https://tax.illinois.gov/localgovernments/property/appeals.html

Buser, S. J. (2015). The role of representative agents in the property tax appeal. *National Tax Journal, 68*(1), 45–71. https://www.journals.uchicago.edu/doi/10.17310/ntj.2015.1.03

Coakley & Associates. (2024, January 18). *Property Tax Appeal Services in Maryland, Virginia & Washington, DC*. https://www.coakleyrealty.com/tax-services/appeals/