No-upfront-fee property-tax appeal help can still be expensive. Censum's second whitepaper shows the math behind percentage-of-savings pricing before a homeowner signs away part of the result.
The short version
Censum analyzed 1,587,827 Class 2 residential PINs in its 2025 Cook County residential assessment snapshot. Among 524,084 PINs in Censum's review-watch band, the modeled first-year savings pool was about $654.1 million.
If every one of those modeled savings outcomes were handled under a 25%-35% percentage-of-savings service, the illustrative first-year fee pool would be about $163.5 million to $228.9 million.
That does not mean every property should appeal. It means homeowners should understand the fee model before choosing help.
Why this matters
The Cook County Assessor says homeowners do not need an attorney to file an Assessor appeal and that there is no fee involved at the Assessor's Office. The Cook County Board of Review also says residential property owners may represent themselves.
At the same time, some private appeal services market no-upfront-fee help and then charge a savings fee if the appeal works. Public provider fee pages commonly explain that savings-based terms can vary by state, property, and agreement.
That can be a fair trade for convenience. It can also be a bad deal if the case is simple, the savings are large, or the homeowner never compared options.
What the whitepaper covers
- How a 25%, 30%, or 35% savings fee changes what the homeowner keeps.
- Why no upfront cost is not the same as low cost.
- Township-level fee-exposure examples from Censum's Cook County residential model.
- The difference between DIY, fixed-fee help, and percentage-of-savings help.
- Questions to ask before signing a percentage-fee agreement.
Sources
The whitepaper links to provider fee examples, provider FAQ pages, the Cook County Assessor's appeal FAQ, the Assessor's tax bill assistance page, the Board of Review's lack-of-uniformity guidance, and the Cook County Treasurer's appeals-system report.
One important caveat
Fee terms vary by provider, state, county, contract, property type, appeal stage, and year. Read the actual agreement before signing. Censum is independent and is not affiliated with Cook County or any government agency.