Skip to content
Free check
Free check

Independent. Not affiliated with any government agency.

McHenry County · Illinois

McHenry Township property tax appeals

A McHenry Township property tax appeal starts with the McHenry County Board of Review, then the Illinois Property Tax Appeal Board. The next deadline is Oct 5, 2026 for McHenry Township, McHenry County Board of Review.

Next deadline
Oct 5, 2026
2 days left
McHenry Township · McHenry County Board of Review

Opens Sep 5, 2026Closes Oct 5, 2026

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

Check a McHenry 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 McHenry, McHenry 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 McHenry Township property tax appeal?

Who hears a McHenry 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 McHenry Township filing windows are coming up?

McHenry Township filing windows
ClosesAreaWho hears itStatus
Oct 5, 2026McHenry TownshipMcHenry County Board of Review · Official source · Last checked Sep 29, 20262 days left

When is the McHenry appeal deadline?

McHenry County Board of Review: Closes October 5, 2026.

Deadline detailNewspaper
McHenry Township's assessments are published in the Northwest Herald; the 2026 publication date was Saturday, September 5, 2026.[1]

How do I file a property tax appeal in McHenry?

McHenry Township's assessor no longer reviews evidence on the spot: every owner who disagrees must file a formal appeal with the Board of Review; for wrong property information an onsite visit is scheduled. Forums: For 2026, the McHenry Township Assessor's office held Assessment Appeal Forums on September 14 (Township Building) and September 21, 2026 (Senior Center) in Johnsburg.

Informal review
McHenry Township's assessor no longer reviews evidence on the spot: every owner who disagrees must file a formal appeal with the Board of Review; for wrong property information an onsite visit is scheduled.[2]
Informal reviewForums
For 2026, the McHenry Township Assessor's office held Assessment Appeal Forums on September 14 (Township Building) and September 21, 2026 (Senior Center) in Johnsburg.[1]

Who can answer questions about my assessment?

Hours: The McHenry Township Assessor's office is open Monday to Friday, 8:30 a.m. to 4:30 p.m. Office: The McHenry Township Assessor's office is at 3703 N. Richmond Road, Johnsburg, IL 60051; phone 815-385-0175, e-mail assessor@mchenrytownship.com.

ContactHours
The McHenry Township Assessor's office is open Monday to Friday, 8:30 a.m. to 4:30 p.m.[2]
ContactOffice
The McHenry Township Assessor's office is at 3703 N. Richmond Road, Johnsburg, IL 60051; phone 815-385-0175, e-mail assessor@mchenrytownship.com.[3]
ContactWebsite
The McHenry Township Assessor's pages are at mchenrytownship.com/assessor/.[1]

Upcoming appeal deadlines in every county we track

What evidence counts in McHenry Township, and can the value go up?

What evidence can I use in McHenry?

Appraisals: McHenry Township's assessor accepts a recent appraisal as market-value evidence, ideally one done for the appeal (refinance appraisals can also be used).

Evidence acceptedAppraisals
McHenry Township's assessor accepts a recent appraisal as market-value evidence, ideally one done for the appeal (refinance appraisals can also be used).[2]

What do McHenry 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 McHenry Township home assessments are spread

Assessed values of 18,313 homes in the property classes our free check covers (0040), tax year 2024 final values. Half are between $65,526 and $116,245; the median is $82,223. 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.

McHenry Township compared with other townships

  1. Algonquin$101,235
  2. Nunda$97,316
  3. Dorr$96,579
  4. Greenwood$83,828
  5. Mchenry$82,223
  6. Hebron$77,177
  7. Marengo$73,615
  8. Dunham$69,667
  9. Chemung$65,291

Ranked 13 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.

McHenry Township filing windows on a calendar

  1. McHenry TownshipOct 5, 2026 · McHenry County Board of Review · Open now

The dashed line marks today.

McHenry Township: Oct 5, 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.

How often is property reassessed in McHenry?

McHenry Township's general reassessment happens every four years, when the township assessor revalues property. Township multiplier: The 2026 township factor (multiplier) for McHenry Township (McHenry County) is 1.0724.

Reassessment cycle
McHenry Township's general reassessment happens every four years, when the township assessor revalues property.[3]
State equalization factorTownship multiplier
The 2026 township factor (multiplier) for McHenry Township (McHenry County) is 1.0724.[4]

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

McHenry Township (McHenry County) parcel numbers (PINs) begin with 09 & 10.

Parcel number (PIN) prefix
McHenry Township (McHenry County) parcel numbers (PINs) begin with 09 & 10.[5]

Other places nearby

Illinois property tax appeals: all counties

Where do these facts come from?

  1. [1]Assessor - McHenry TownshipOfficial guide or FAQ · last checked Oct 1, 2026
  2. [2]Appeals - McHenry TownshipOfficial guide or FAQ · last checked Oct 1, 2026
  3. [3]A Taxpayer's Guide to Property Tax Relief 2026 - McHenry Township Assessor (PDF)Official guide or FAQ · last checked Oct 1, 2026
  4. [4]McHenry Township Board packet, August 13, 2026 (PDF) - Assessor's reportOfficial guide or FAQ · last checked Oct 1, 2026
  5. [5]Township Assessors in McHenry County – Dorr TownshipOfficial guide or FAQ · last checked Oct 1, 2026
  6. [6]2026 Township Filing Deadlines - McHenry County Board of ReviewOfficial notice, form, calendar or rules · last checked Sep 28, 2026
  7. [7]Filing a Complaint | McHenry County, IL (Wayback capture 2026-03-19)Official notice, form, calendar or rules · last checked Sep 25, 2026
  8. 8.County open data: mchenry assessmentsRetrieved Sep 27, 2026; aggregated by us for the charts above.
  9. 9.County open data: mchenry assessmentsRetrieved Sep 27, 2026; aggregated by us for the charts above.
  10. 10.County open data: mchenry parcelsRetrieved Sep 27, 2026; aggregated by us for the charts above.

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

Check my home free