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McHenry County · Illinois

Alden Township property tax appeals

An Alden Township property tax appeal starts with the McHenry County Board of Review, then the Illinois Property Tax Appeal Board. The next deadline is Oct 22, 2026 for Alden Township, McHenry County Board of Review.

Next deadline
Oct 22, 2026
Open now
Alden Township · McHenry County Board of Review

Opens Sep 22, 2026Closes Oct 22, 2026

Source: 2026 Township Filing Deadlines - McHenry County Board of ReviewLast checked

Check an Alden 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 McHenry CountyEvery appeal date in McHenry County

Where to file first
McHenry County Board of Review
Our coverage
Free check available
  • Independent guide — not affiliated with Alden, McHenry County or any government agency.
Last updated
October 2, 2026
Sources last checked
October 3, 2026
Status
Verified guide

How we verify facts

When and where do I file an Alden Township property tax appeal?

Who hears an Alden Township appeal?

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

  1. McHenry County Board of Review

    Filing: complaint

    Official site

  2. Illinois Property Tax Appeal Board

    Filing: appeal

    Official site

Which Alden Township filing windows are coming up?

Alden Township filing windows
ClosesAreaWho hears itStatus
Oct 22, 2026Alden TownshipMcHenry County Board of Review · Official source · Last checked Sep 29, 2026Open now

When were past Alden Township deadlines?

Past Alden Township filing windows
Tax yearWindowOffice
2025Closed October 10, 2025Alden · McHenry County Board of Review

When is the Alden appeal deadline?

McHenry County Board of Review: Closes October 22, 2026.

Who can answer questions about my assessment?

Address: The Alden Township Assessor's address is 8515 Alden Rd., Harvard, IL 60033. Email: E-mail the Alden Township Assessor at assessor.aldentwp@gmail.com.

ContactAddress
The Alden Township Assessor's address is 8515 Alden Rd., Harvard, IL 60033.[2]
ContactEmail
E-mail the Alden Township Assessor at assessor.aldentwp@gmail.com.[2]
ContactOffice
The Alden Township Assessor is at 8515 Alden Rd., Harvard, IL 60033; phone (815) 648-2720, e-mail assessor.aldentwp@gmail.com.[2]
ContactPhone
Phone the Alden Township Assessor at (815) 648-2720.[2]
ContactWebsite
Alden Township's website is www.alden-township.org.[2]

Upcoming appeal deadlines in every county we track

What do Alden 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 Alden Township home assessments are spread

Assessed values of 346 homes in the property classes our free check covers (0040), tax year 2024 final values. Half are between $70,611 and $130,421; the median is $101,488. The last bar holds everything above it.Source: Assessment records from the county's open data (tax year 2024 final values), retrieved Sep 27, 2026; our calculation.

Alden Township compared with other townships

  1. Seneca$123,525
  2. Hartland$120,335
  3. Grafton$118,304
  4. Riley$111,189
  5. Alden$101,488
  6. Algonquin$101,235
  7. Nunda$97,316
  8. Dorr$96,579
  9. Greenwood$83,828

Ranked 8 of 17; showing the 9 nearest in rank.

Median assessed value by township: highest Coral ($128,748), lowest Chemung ($65,291).

Median assessed value of homes in the property classes our free check covers (0040) for each township with at least 50 such homes, tax year 2024 final values.Source: Assessment records from the county's open data (tax year 2024 final values), retrieved Sep 27, 2026; our calculation.

Alden Township filing windows on a calendar

  1. Alden TownshipOct 22, 2026 · McHenry County Board of Review · Open now

The dashed line marks today.

Alden Township: Oct 22, 2026

Each bar is a filing window from its opening day to its last day. Forecasts show the expected closing range and are not official dates.Source: the official calendars and rules cited in the sources list below.

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

The McHenry County 2024 assessment rollbook for Alden Township lists 1,544 parcels (tax year 2024). Alden Township (McHenry County) parcel numbers (PINs) begin with 02.

Parcel count
The McHenry County 2024 assessment rollbook for Alden Township lists 1,544 parcels.[1] (latest published: tax year 2024)
Parcel number (PIN) prefix
Alden Township (McHenry County) parcel numbers (PINs) begin with 02.[2]

Other places nearby

Illinois property tax appeals: all counties

Where do these facts come from?

  1. [1]Assessment Rollbook, McHenry County, Township ALDEN TWP, Tax Year 2024 (PDF, 392 pages; Wayback capture 2025-11-12)Official notice, form, calendar or rules · last checked Oct 2, 2026
  2. [2]Township Assessors in McHenry County – Dorr TownshipOfficial guide or FAQ · last checked Oct 1, 2026
  3. [3]2026 Township Filing Deadlines - McHenry County Board of ReviewOfficial notice, form, calendar or rules · last checked Sep 28, 2026
  4. [4]Filing a Complaint | McHenry County, IL (Wayback capture 2026-03-19)Official notice, form, calendar or rules · last checked Sep 25, 2026
  5. [5]2025 Township Filing Deadlines - McHenry County Board of Review (Wayback capture 2025-11-10)Official notice, form, calendar or rules · last checked Oct 2, 2026
  6. 6.County open data: mchenry assessmentsRetrieved Sep 27, 2026; aggregated by us for the charts above.
  7. 7.County open data: mchenry assessmentsRetrieved Sep 27, 2026; aggregated by us for the charts above.
  8. 8.County open data: mchenry parcelsRetrieved Sep 27, 2026; aggregated by us for the charts above.

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

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