Worth Township Commercial Property Tax Appeal: Deadline & Trends
Worth Township is being reassessed in 2026 — the year that resets your commercial assessment for the next three years. Cook County values commercial and industrial property on income, not just sales, and the 2025 results tell a clear story: commercial appeals in Worth won far more often than residential ones. Here's the deadline, what actually wins a commercial appeal, and how to file.
These figures cover appeals decided on similar buildings, from the Assessor's and the Board of Review's public records. They are not our firm's results, and past results do not guarantee a similar outcome.
- Worth is reassessed in 2026. Worth's notices went out September 1, and the Assessor's appeal window closed October 15, 2026; the Board of Review's Worth window comes next, after the Assessor certifies the township.
- The value set this year drives your commercial bill until the next reassessment in 2029 — and on commercial parcels, a percentage reduction is real money.
- Cook County values commercial and industrial property on an income approach (rent, vacancy, expenses, cap rate) — so appeals are won with your financials, not just comparable sales.
- In Worth's 2025 results, one-story commercial (Class 5-17) won a change 45.8% of the time — more than triple the 13.1% rate across all Worth appeals.
Why 2026 matters for Worth commercial owners
Cook County reassesses every property on a three-year triennial cycle. Worth Township — in the south/west suburban triad covering Palos Heights, Alsip, Crestwood, Robbins, and parts of Oak Lawn and Chicago Ridge — is being reassessed in 2026, its first fresh valuation since 2023. The number set this year becomes the baseline that drives your commercial tax bill until the next reassessment in 2029.
That long gap is exactly why a reassessment year is the highest-leverage moment to act. A commercial assessment that's even modestly too high in 2026 doesn't quietly correct itself — it compounds across three tax years. And because commercial and industrial assessments are far larger than residential ones, even a small percentage reduction can translate into a substantial dollar figure on the bill.
A 10% reduction on a commercial parcel assessed at $1 million is a $100,000 cut in assessed value — and because that value holds across the full three-year cycle until 2029, the savings compound year after year.
The Worth Township commercial appeal deadline
Cook County doesn't use a single county-wide deadline. Each township opens on its own schedule, and the dates move year to year. The reliable way to find yours is the Assessor's Assessment & Appeal Calendar, which lists when Worth "opens" and the "last file date" — and in a reassessment year, the deadline is also printed on the last page of your reassessment notice.
- September 1, 2026 Your Worth reassessment notices went out Worth's notices went out September 1. Your filing deadline is also on the notice itself.
- September 1 – October 15, 2026 Cook County Assessor (CCAO) window Where income-and-expense evidence does the most work for a commercial parcel. File before the last-file date.
- Later in 2026 Cook County Board of Review (BoR) An independent body that opens after the Assessor's window. You can appeal here even if the Assessor reduced you only partly — or not at all.
- If still over-assessed PTAB or Circuit Court For larger commercial and industrial disputes, the Illinois Property Tax Appeal Board or the courts remain available after the Board of Review.
A reassessment year is the highest-leverage moment, but it isn't the only one. Cook County opens an annual appeal window for every township, every year — so even between reassessments, Worth commercial owners can file again. The reassessment year is simply where the value gets reset, so it's the one not to miss.
What the 2025 Worth results show
The clearest read on what happens to a Worth appeal comes from the most recent results. Across 5,391 appeals, 707 ended in a change — an overall success rate of 13.1%. But that township-wide number hides a wide spread by property class, and commercial stood out sharply.
| Property class | What it is | Appeals | Success |
|---|---|---|---|
| 5-17 | One-story commercial | — | 45.8% |
| 2-03 | One-story residence, 1,000–1,800 sq ft | 1,954 | 12.4% |
| 2-34 | Split-level residence | 936 | 11.3% |
| 2-99 | Residential condominium | 431 | 13.2% |
| 2-11 | Apartment building, 2–6 units | 189 | 7.4% |
These figures cover appeals decided on similar buildings, from the Assessor's and the Board of Review's public records. They are not our firm's results, and past results do not guarantee a similar outcome.
The pattern is direct: one-story commercial property (Class 5-17) won 45.8% of the time — more than triple the township-wide average and well above any high-volume residential class. The reason is structural. Commercial appeals often hinge on income, expense, and vacancy evidence that can clearly support a lower value, while residential mass-appraisal values are harder to move without strong comparable sales.
The takeaway for a commercial owner isn't "appeals are automatic" — most Worth appeals still ended in no change. It's that a well-supported commercial appeal in Worth was among the most likely to produce a reduction, because the evidence you can bring (your actual financials) speaks directly to how the Assessor set the value.
How Worth commercial property is valued
Residential property is valued mostly on comparable sales. Commercial and industrial property is different: Cook County generally uses an income approach. The Assessor estimates what the property earns — based on its use, market rent, vacancy, collection loss, and operating expenses — then applies a capitalization rate to convert that income into a value.
Every one of those inputs is an assumption, and every assumption is a place an assessment can go wrong:
| Input the Assessor uses | How it can overstate your value |
|---|---|
| Market rent (per sq ft) | Assumed rent is higher than your actual leases |
| Vacancy / occupancy | Assumes fuller occupancy than the building runs |
| Operating expenses | Understates costs, inflating net income |
| Capitalization rate | A cap rate set too low inflates the value |
The practical takeaway: a Worth commercial appeal usually isn't an argument that "the market went down." It's a demonstration that the Assessor's income assumptions for your specific property don't match its actual performance.
What actually wins a commercial appeal
1. Income approach evidence (the centerpiece)
Your actual rent roll, leases, and operating statements. If the Assessor assumed market rents and full occupancy but your building runs below that, the income supporting the assessed value is overstated — and your financials prove it.
2. Lack of uniformity
If comparable commercial or industrial properties nearby are assessed at a lower level relative to income or square footage, your assessment is non-uniform and should be brought in line.
3. Overvaluation vs. market
A recent purchase, a current appraisal, or comparable commercial sales below the Assessor's implied market value.
4. Factual and classification errors
Wrong square footage, an incorrect property class, or characteristics that don't match the actual building. For industrial property, classification and measurement errors are common, and correcting them can move the assessment on its own.
Residential appeals can win on comparables alone. Commercial appeals usually require your financials. The owners who assemble a clean rent roll, current leases, and an income-and-expense statement early tend to fare best — which is exactly why Worth's commercial class outperformed residential in 2025.
How to file your Worth commercial appeal
- Find your PIN and pull your assessment. Confirm the proposed value and the property characteristics on record with the Assessor.
- Check the calendar / your notice. Confirm Worth's current open and last-file dates — in 2026 the deadline is also on your reassessment notice.
- Assemble income documentation. Rent roll, current leases, and a recent income-and-expense statement. This is the heart of a commercial appeal.
- File with the Assessor before the last-file date, with your financials attached.
- File with the Board of Review when its window opens — a separate, independent second chance.
- Escalate if warranted. For large disputes, PTAB or the courts remain available after the Board of Review.
Working with us on a Worth commercial appeal
Commercial appeals reward experience with the income approach and with how the Cook County Assessor and Board of Review weigh financial evidence. We review your rent roll and operating statements against the Assessor's assumptions, build the comparable and cap-rate case, and file at both the Assessor and the Board of Review — then escalate if the numbers justify it.
We work on contingency: no upfront cost, and we're paid a share of the savings only if the appeal reduces your bill. If your assessment is already fair, the honest answer is to tell you so. On commercial and industrial property, where the dollars are larger, that candor matters.
See if your Worth commercial property is over-assessed
Send us your PIN and we'll review your 2026 assessment against the income approach the Assessor used — free, no obligation, and no upfront cost to file.
Review my commercial assessment →Worth commercial appeal FAQ
When is the Worth Township commercial appeal deadline in 2026?
Worth is reassessed in 2026, so the deadline is printed on the last page of your reassessment notice and posted on the Assessor's Assessment & Appeal Calendar. Worth's notices went out September 1, 2026, and the Assessor's window closed October 15, 2026; the Board of Review's Worth window comes next, after the Assessor certifies the township.
What was the commercial appeal success rate in Worth?
In the 2025 results, one-story commercial property (Class 5-17) won a change 45.8% of the time — more than triple the 13.1% rate across all Worth appeals and the highest of any major class. Past results don't guarantee an individual outcome, but they show commercial appeals had strong grounds when the evidence supported them.
How is commercial and industrial property assessed in Cook County?
Generally on an income approach: the Assessor estimates income from use, market rent, vacancy, collection loss, and expenses, then applies a capitalization rate. Because the value is driven by those assumptions, your actual financials are the strongest evidence in an appeal.
What documents do I need for a commercial appeal?
Typically your rent roll, current leases, and a recent income-and-expense statement, plus anything that corrects the property record (square footage, class, condition). Comparable commercial assessments or sales and a market-supported cap rate strengthen the case.
Can I appeal to both the Assessor and the Board of Review?
Yes. They're two separate bodies. You can file with the Assessor during its window and, regardless of that outcome, file again with the independent Board of Review. For larger disputes, PTAB and the courts remain available afterward.
Will appealing raise my assessment?
Rarely. Across 2021-2025, about 1 in 1,000 decided Cook County appeals ended in a higher assessment; the rest resulted in a reduction or no change.
What does it cost to appeal?
Filing yourself with the county is free. Working with our firm, there's no upfront cost — we work on contingency and are paid only a share of the savings if the appeal succeeds. If there is no reduction, there is no fee.
This article summarizes Cook County appeal outcomes for Worth Township and is general information, not legal or tax advice. Figures are drawn from Cook County appeal data; individual results depend on the property and the evidence presented. Filing deadlines are set by the Cook County Assessor and Board of Review — always confirm your window before filing. Representation is subject to a written engagement agreement.
