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Cook County · Illinois

Schaumburg Township property tax appeals

A Schaumburg Township property tax appeal starts with the Cook County Assessor's Office, then the Cook County Board of Review. This season's deadline has not been announced yet. Our forecast for Schaumburg Township, Cook County Assessor's Office: Nov 18, 2026 – Dec 23, 2026 (not an official date).

Next deadline
Expected Nov 18, 2026 – Dec 23, 2026
Forecast, not an official date
Schaumburg Township · Cook County Assessor's Office
Source: Assessment & Appeal Calendar (page last updated 9/22/26) - Cook County Assessor's OfficeLast checked

Check a Schaumburg Township home for free

Enter the address or parcel number from your notice. We compare the assessment with similar homes and show the numbers, whatever they are. You decide and file yourself.

Part of Cook CountyEvery appeal date in Cook County

Where to file first
Cook County Assessor's Office
Our coverage
Free check available
  • Independent guide — not affiliated with Schaumburg, Cook County or any government agency.
Last updated
October 1, 2026
Sources last checked
October 3, 2026
Status
Verified guide

How we verify facts

When and where do I file a Schaumburg Township property tax appeal?

Who hears a Schaumburg Township appeal?

The stages in order. We are not affiliated with any of these offices.

  1. Cook County Assessor's Office

    Filing: appeal

    Official site

  2. Cook County Board of Review

    Filing: complaint

    Official site

  3. Circuit Court of Cook County (tax objection)

    Filing: objection

  4. Illinois Property Tax Appeal Board

    Filing: appeal

    Official site

Which Schaumburg Township filing windows are coming up?

Schaumburg Township filing windows
ClosesAreaWho hears itStatus
Expected Nov 18, 2026 – Dec 23, 2026Schaumburg TownshipCook County Assessor's Office · Official source · Last checked Oct 3, 2026Forecast, not an official date

When were past Schaumburg Township deadlines?

Past Schaumburg Township filing windows
Tax yearWindowOffice
2025Closed November 17, 2025Schaumburg · Cook County Assessor's Office
2022Closed August 25, 2022Schaumburg · Cook County Assessor's Office

When is the Schaumburg appeal deadline?

Cook County Assessor's Office: Expected to close between November 18, 2026 and December 23, 2026 (predicted, not yet announced).

Deadline detailBoard of Review re-review
Schaumburg Township, tax year 2025: the Board of Review's decision date was May 11, 2026 and the re-review period closed May 13, 2026; the Assessor (CCAO) certification date was Jun 1, 2026.[1] (latest published: tax year 2025)
Deadline detailNotice mailed
Schaumburg Township (2025 reassessment): Reassessment Notices were mailed Oct 2, 2025; appeals were due Nov 17, 2025.[2] (latest published: tax year 2025)

Who can answer questions about my assessment?

Hours: Schaumburg Township Assessor's office hours: 8:30 A.M. to 5:00 P.M. Office: The Schaumburg Township Assessor's office is at 1 Illinois Blvd. Hoffman Estates, IL 60194; phone (847) 884-0030.

ContactHours
Schaumburg Township Assessor's office hours: 8:30 A.M. to 5:00 P.M.[6]
ContactOffice
The Schaumburg Township Assessor's office is at 1 Illinois Blvd. Hoffman Estates, IL 60194; phone (847) 884-0030.[6]

Upcoming appeal deadlines in every county we track

What do Schaumburg Township property taxes and assessments look like?

Figures from public records and the Census, each with its source. They describe the county's homes as a group, not the value of any one home.

How Schaumburg Township home assessments are spread

Assessed values of 30,461 homes in the property classes our free check covers (202, 203, 204, 205, 206 and 8 more), tax year 2025 values after the Board of Review. Half are between $31,530 and $45,001; the median is $37,259. The last bar holds everything above it.Source: Assessment records from the county's open data (tax year 2025 values after the Board of Review), retrieved Sep 25, 2026; our calculation.

Schaumburg Township compared with other townships

  1. South Chicago$40,000
  2. Jefferson$38,977
  3. Niles$38,250
  4. Norwood Park$38,000
  5. Schaumburg$37,259
  6. Orland$35,000
  7. Riverside$35,000
  8. Lyons$33,000
  9. Palos$32,595

Ranked 19 of 38; showing the 9 nearest in rank.

Median assessed value by township: highest North Chicago ($135,400), lowest Thornton ($12,000).

Median assessed value of homes in the property classes our free check covers (202, 203, 204, 205, 206 and 8 more) for each township with at least 50 such homes, tax year 2025 values after the Board of Review.Source: Assessment records from the county's open data (tax year 2025 values after the Board of Review), retrieved Sep 25, 2026; our calculation.

What happened to Schaumburg Township appeals in tax year 2025

  1. Assessor16% lowered of 9,730
  2. Board of Review62% lowered of 9,816

Assessor: 16% of 9,730 appeals lowered (median cut 5.6%); Board of Review: 62% of 9,816 appeals lowered (median cut 6.1%)

Share of appeals on homes in the property classes our free check covers (202, 203, 204, 205, 206 and 8 more) that were lowered, unchanged or raised, by stage.Source: public appeal results for tax year 2025 from the county's open data, retrieved Sep 25, 2026; our calculation. Past results, not a prediction for any home.

How often is property reassessed in Schaumburg?

Schaumburg Township is reassessed every three years with the North Suburbs; its scheduled reassessment years are 2025, 2028 and 2031.

Reassessment cycle
Schaumburg Township is reassessed every three years with the North Suburbs; its scheduled reassessment years are 2025, 2028 and 2031.[3]

What do home values and property taxes look like in Schaumburg?

Schaumburg Township (2022 reassessment): total assessed value grew 29% at the Assessor's initial reassessment, before appeals (tax year 2022). Schaumburg Township (2025 reassessment): the Assessor's median estimated market value for single-family homes was $381,000 (median 2024 sale price $390,000) (tax year 2025).

Assessed value change
Schaumburg Township (2022 reassessment): total assessed value grew 29% at the Assessor's initial reassessment, before appeals.[4] (latest published: tax year 2022)
Median assessor estimate
Schaumburg Township (2025 reassessment): the Assessor's median estimated market value for single-family homes was $381,000 (median 2024 sale price $390,000).[2] (latest published: tax year 2025)
Median condo price
Schaumburg Township (2025 reassessment): condos had a median 2024 sale price of $241,000; the Assessor's median estimate was $225,000.[2] (latest published: tax year 2025)
Median sale price
Schaumburg Township (2025 reassessment): the median sale price of single-family homes in 2024 was $390,000; the Assessor's median market value estimate for the class was $381,000.[5] (latest published: tax year 2025)
Median small apartment price
Schaumburg Township (2025 reassessment): small apartment buildings had a median 2024 sale price of $957,000; the Assessor's median estimate was $780,000.[2] (latest published: tax year 2025)

Other places nearby

Illinois property tax appeals: all counties

Where do these facts come from?

  1. [1]Board of Review 2025 Re-Review/Decision Dates (PDF, Rev.6/9/2026) - Cook County Board of ReviewOfficial notice, form, calendar or rules · last checked Oct 1, 2026
  2. [2]Schaumburg Township: Residential Valuations - Cook County Assessor's OfficeOfficial guide or FAQ · last checked Oct 1, 2026
  3. [3]Township Triennial Reassessment Schedule (PDF) - Cook County Board of ReviewOfficial notice, form, calendar or rules · last checked Oct 1, 2026
  4. [4]Schaumburg Township Property Values Released - Cook County Assessor's Office (press release, July 27, 2022)Official guide or FAQ · last checked Oct 1, 2026
  5. [5]Property Values for Schaumburg Township Released - Cook County Assessor's Office (press release, October 3, 2025)Official guide or FAQ · last checked Oct 1, 2026
  6. [6]Cook County Township Assessors - Cook County Assessor's OfficeOfficial guide or FAQ · last checked Oct 1, 2026
  7. [7]Assessment & Appeal Calendar (page last updated 9/22/26) - Cook County Assessor's OfficeOfficial notice, form, calendar or rules · last checked Sep 24, 2026
  8. [8]35 ILCS 200/12-55 - Illinois Property Tax Code (ILGA; Wayback capture 2026-01-09)Statute or regulation · last checked Sep 24, 2026
  9. [9]2025 Assessment Calendar (PDF) - Cook County Assessor's Office (Wayback Machine capture 2026-05-11)Official notice, form, calendar or rules · last checked Sep 24, 2026
  10. 10.County open data: cook assessmentsRetrieved Sep 25, 2026; aggregated by us for the charts above.
  11. 11.County open data: cook parcelsRetrieved Sep 25, 2026; aggregated by us for the charts above.
  12. 12.County open data: cook parcelsRetrieved Sep 25, 2026; aggregated by us for the charts above.
  13. 13.County open data: cook parcelsRetrieved Sep 25, 2026; aggregated by us for the charts above.
  14. 14.County open data: appeal resultsAggregated by us for the appeal-results chart.
  15. 15.County open data: appeal resultsAggregated by us for the appeal-results chart.

Not affiliated with Schaumburg Township or any government agency. Not legal advice. Not an appraisal.

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