Worth Township Property Tax Appeal: Deadline & Trends
Worth Township is being reassessed in 2026, which makes this the year that sets your home's assessed value for the next three years. Homeowners in Palos Heights, Alsip, Crestwood, Oak Lawn, and Chicago Ridge have a short window to challenge a value that looks too high — and the 2025 results show what actually moved. Here's the deadline, the trends by home class, and how to file.
- 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 tax bill until the next reassessment in 2029, so catching a too-high assessment now matters for three years, not one.
- Appealing is free to file and an appeal cannot raise your assessment — the realistic downside is none.
- In the 2025 results, 11.9% of Worth homeowner appeals won a change, counting each appeal once, and winning appeals cut the assessed value about 7.8% on average. Residential appeals are won on comparable homes, recent sales, or factual errors in your record.
Why 2026 matters for Worth homeowners
Cook County reassesses every property on a three-year triennial cycle. Worth Township — in the south/west suburban group covering Palos Heights, Alsip, Crestwood, Robbins, and parts of Oak Lawn and Chicago Ridge — is part of the triad being reassessed in 2026. It was last reassessed in 2023, so this is the first fresh look at your home's value in three years.
The number on your reassessment notice becomes the baseline that drives your property tax bill until the next reassessment in 2029. An assessment that's even modestly too high doesn't quietly correct itself — it compounds across three tax years. That's why a reassessment year is the single most valuable time to check your value and act if it's off.
One important point: the notice is not a tax bill. It states the Assessor's estimate of your home's market value and the assessed value derived from it (10% of market value for residential property in Cook County). A higher value doesn't automatically mean a proportionally higher tax bill — but if your value rose more than comparable homes around you, your share of the local levy can climb, and that's exactly what an appeal addresses.
The Worth Township appeal deadline
Cook County doesn't use a single county-wide deadline. Each township opens on its own schedule, and the dates shift 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 The first and fastest path to a correction. File before the last-file date on your notice.
- 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 denied or only partly reduced you — or if you skipped the Assessor entirely.
- Result Reduction flows to your tax bill Any reduction carries through automatically; you don't re-file to claim it.
The Assessor's window closed October 15, 2026, and the Board of Review's Worth window comes next. Treat its opening as your signal to act, not its deadline: filing early means a calmer, better-supported evidence package.
What the 2025 Worth results show
The clearest read on what happens to a Worth appeal comes from the most recent results. Across 4,720 homeowner appeals, counting each appeal once, 562 ended in a change — a success rate of 11.9%. Most appeals didn't move, but the township-wide number hides a real spread by home class.
| Home class | What it is | Appeals | Success |
|---|---|---|---|
| 2-05 | Older two+ story, up to 2,200 sq ft | 243 | 17.3% |
| 2-02 | One-story, up to 999 sq ft | 272 | 14.0% |
| 2-04 | One-story, 1,801+ sq ft | 275 | 13.8% |
| 2-06 | Older two+ story, 2,201–4,999 sq ft | 123 | 13.8% |
| 2-03 | One-story, 1,000–1,800 sq ft | 1,879 | 12.3% |
| 2-34 | Split-level residence | 927 | 11.4% |
| 2-10 | Older row house or townhome | 117 | 8.5% |
| 2-99 | Residential condominium | 246* | 2.4% |
Among the high-volume residential classes, success rates clustered in a fairly narrow band — roughly 8% to 17% — around the 11.9% homeowner average. Older two-or-more-story homes up to 2,200 sq ft (Class 2-05) fared best; row houses and townhomes (2-10) lagged, and condominium appeals (2-99) rarely won. The pattern is a reminder that filing volume doesn't equal success: the largest class by far (2-03, with nearly 1,900 appeals) landed close to the average, while smaller older-home classes did better. *One appeal can cover a whole building's units, decided together: 246 condo appeals covered 431 units, and 6 of the appeals won.
None of this guarantees an outcome for any single property — but it shows the opportunity is real and earned with evidence, not automatic.
How much assessed value actually moved
A change isn't only about whether the appeal succeeded — it's about how much value came off. In Worth in 2025, winning homeowner appeals cut the assessed value about 7.8% on average, or about $2,590; the typical (median) cut was about $1,630.
Why it matters: your appeal targets your assessed value, which determines your share of the local tax levy. A lower assessed value doesn't rewrite the entire bill, but it reduces the portion tied to your property — sustained across the full three-year cycle until the next reassessment in 2029.
Most Worth homeowner appeals (about 88%) ended in no change in 2025. The opportunity is real, but it's earned with evidence — not automatic. A careful look at your comparables before filing is what separates a reduction from a wasted filing.
What actually wins a Worth appeal
A higher number is frustrating, but frustration isn't grounds for an appeal. The Assessor and Board of Review reduce assessments for specific, evidence-backed reasons. For homeowners, three carry the most weight:
1. Lack of uniformity (the strongest residential argument)
If comparable homes near you — similar size, age, style, and lot — are assessed for less per square foot than yours, your assessment is "non-uniform" and should be brought in line. In Worth's established single-family neighborhoods, strong comparables are often available.
2. Overvaluation
If recent sales of similar nearby homes — or a recent purchase or appraisal of your own home — come in below the Assessor's implied market value, you can argue the assessment overstates what your property is worth.
3. Factual error in your property record
The Assessor's description of your home may be wrong: too much square footage, a finished basement that isn't finished, an incorrect bathroom count. Correcting the record can lower the assessment on its own.
| Evidence that wins | Evidence that rarely helps |
|---|---|
| Assessed values of comparable neighbors | "My taxes went up too much" |
| Recent comparable sales below your value | Your personal budget or hardship |
| A recent appraisal or purchase price | The condition of local roads |
| Photos/records correcting a factual error | Comparison to a different township |
How to file your Worth appeal, step by step
- Find your PIN and read the notice. Your Property Index Number is on the reassessment notice. Note the proposed assessed value and the deadline on the last page.
- Pull your comparables. Identify similar homes near you and compare their assessed values to yours. This is where most of the work — and most of the win — lives.
- Choose your grounds. Usually lack of uniformity, overvaluation, or a factual correction (often a combination).
- File with the Assessor before the last-file date. The CCAO accepts appeals online; attach your comparables and supporting documents.
- If needed, file with the Board of Review when its window opens — a separate, independent second chance.
- Wait for the decision. Any reduction carries through to your tax bill automatically.
Most successful single-family appeals produce a meaningful but not dramatic reduction, sustained across the three-year cycle. The cost to file is your time, or a contingency fee if you use a firm. The downside is essentially zero: an appeal cannot raise your assessment.
Working with us on a Worth appeal
Appeals are won case by case, on the strength of the comparables. What experience buys you is judgment: which Worth homes are genuinely over-assessed and which aren't, which comparables the Assessor and Board of Review respond to, and how to package a filing so it isn't dismissed on a technicality.
We charge nothing upfront. We work on contingency — paid a share of the savings only if your appeal actually reduces your bill. If there is no reduction, there is no fee. And if your home isn't over-assessed, the right answer is to tell you so. The whole process, from looking up your PIN to a filed appeal, can usually be completed online in a single sitting.
See if your Worth home is over-assessed
Enter your address and we'll check your 2026 assessment against comparable Worth Township homes — free, no obligation, and no upfront cost to file.
Check my assessment →Worth Township appeal FAQ
When is the Worth Township 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 residential appeal success rate in Worth?
In the 2025 results, 11.9% of Worth homeowner appeals won a change, counting each appeal once. Among high-volume home classes the rate ranged from about 8.5% (older row houses) to 17.3% (older two-story homes), clustering around the homeowner average. Past results don't guarantee any individual outcome.
Will appealing make my assessment go up?
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. The downside of a well-supported appeal remains small.
How much could a successful appeal reduce my assessment?
In Worth in 2025, winning homeowner appeals lowered the assessed value about 7.8% on average — roughly $2,590; the typical (median) cut was about $1,630. Your result depends on how over-assessed your specific home is.
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 when it opens. You can also skip the Assessor and go straight to the Board.
Do I need comparable properties to appeal?
They help a lot, especially in a lack-of-uniformity case. The Assessor says comparable properties should share similar characteristics, and staff can review comparables even if you don't submit your own list — but a strong comparable set is the most reliable way to win a residential appeal.
Do I have to pay anything 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 your 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.
