Tazewell County property tax appeal 2027: deadline, forms and how to file
To appeal a Tazewell County assessment, file with the Tazewell County Board of Review by mail or in person; in Illinois the deadline is 30 days after the township assessment list is published (Cook County uses township filing windows). Confirm the exact date on your notice or with the assessor; we add each county's 2027 date here when it is published.
2026 pattern: assessment lists were published August 12, 2026 in the Pekin Times, Washington Courier and Morton Courier, with a September 11, 2026 filing deadline for all 19 townships (county publication/deadline table).
Data as of 20 Oct 2026 · Tazewell County Board of ReviewCheck your own assessment
Free. We compare the value on your notice with recent sales of similar homes nearby and tell you whether an appeal is worth filing. Have your assessment notice and tax bill handy.
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How to file in Tazewell County
- Step 1
File the appeal
Use the method your notice lists, by the deadline on the notice.
- Step 2 · before the hearing
Prepare and submit your evidence
Overvaluation must be shown by a preponderance of the evidence; a uniformity (equity) claim needs clear and convincing evidence. The strongest evidence is a recent arm’s-length purchase of your home, or an appraisal as of January 1. Otherwise use at least three comparable sales, or for equity at least three similar nearby homes with their assessments and property record cards, in a grid. Bring a photo of your home and its property record card.
- Step 3
Meet, then hear
An informal review with Township assessor or Supervisor of Assessments comes first; if you decline the offer, the Tazewell County Board of Review hears the case. Most reductions happen at the first step.
Before you file: how to read your notice · evidence that works · informal vs formal hearing · when not to appeal
Forms
| Form | Number | Use | Format |
|---|---|---|---|
| Non-Farm Property Assessment Appeal - Residential Form / Commercial Packet (2026) | — | Residential and commercial non-farm assessment complaint to the Tazewell County Board of Review (the page links this same file for both) | |
| Farm Appeal Form | — | Farm assessment complaint to the Tazewell County Board of Review | |
| Residential Appeal (Property Tax Appeal Board) | PTAB-1A | Only after the Board of Review decides: the state appeal, due 30 days after the board’s written notice. Can also be filed online through PTAB eFile. | Fillable PDF |
Appeal levels
| Level | Who hears it | Deadline | Cost |
|---|---|---|---|
| Informal review | Township assessor or Supervisor of Assessments | Before the Board of Review deadline | Free |
| Board of Review | Tazewell County Board of Review | 30 days after the assessment list is published | Free |
| Property Tax Appeal Board | Illinois Property Tax Appeal Board (state) | 30 days after the Board of Review’s written decision | No filing fee |
| Court | Circuit court (administrative review), or a tax objection in Tazewell County circuit court | 35 days after the PTAB decision; tax objections follow the tax-bill penalty date | Court costs |
What evidence the board accepts
Overvaluation must be shown by a preponderance of the evidence; a uniformity (equity) claim needs clear and convincing evidence. The strongest evidence is a recent arm’s-length purchase of your home, or an appraisal as of January 1. Otherwise use at least three comparable sales, or for equity at least three similar nearby homes with their assessments and property record cards, in a grid. Bring a photo of your home and its property record card.
Tazewell County questions
When is the Tazewell County appeal deadline for 2027?
No 2027 date is published yet. The board’s rule: BOR rules (Rule C.11): fully completed complaints must be filed with the Clerk of the Board on or before 30 calendar days after publication of the current-year assessment list. The Board is in session from the first Monday in June through December 31. Mailed complaints are filed as of the postmark date (to 11 S. 4th St., Room 410, Pekin); faxed or emailed complaint forms are not accepted. All evidence must be submitted in paper form when the complaint is filed.
How do I appeal my assessment in Tazewell County?
File the Non-Farm Property Assessment Appeal - Residential Form / Commercial Packet (2026) with the Tazewell County Board of Review, 11 South Fourth Street, McKenzie Building, Suite 410, Pekin, IL 61554-4206. Mailed complaints count as filed on the postmark date.
Should I talk to the assessor first?
Yes. The township assessor or the Tazewell County Supervisor of Assessments can fix record errors informally. Still file with the Tazewell County Board of Review by the deadline: a board complaint is required before any state appeal.
What evidence works best?
A recent arm’s-length purchase of your home or an appraisal as of January 1. Otherwise, at least three comparable sales, or three similar nearby homes with lower assessments, with property record cards and photos.
How do I contact the Tazewell County Supervisor of Assessments?
Mail: Tazewell County Board of Review, 11 South Fourth Street, McKenzie Building, Suite 410, Pekin, IL 61554-4206. Phone: 309-477-2277. Hours and walk-in details: tazewell-il.gov.
What if the Board of Review says no?
Appeal to the Illinois Property Tax Appeal Board within 30 days of the board’s written decision. There is no fee, and you can file online through PTAB eFile. A lowered value on an owner-occupied home carries over for the rest of the assessment period.
Check whether yours is over-assessed
Nearby counties
Peoria County · Woodford County · Logan County · Mason County · McLean County · Fulton County · Menard County
- Tazewell County - Board of Review
- Tazewell County - Assessments
- Tazewell County - 2026 BOR Rules and Procedures Manual (PDF)
- Tazewell County - 2026 publication dates and BOR filing deadlines (PDF)
- Tazewell County - Quadrennial Explanation (PDF)
- Illinois State Board of Elections - County Officers directory (Supervisor of Assessments entries)
- 35 ILCS 200/16-55 — Board of Review complaints
- 35 ILCS 200/12-10 — Publication of assessments
- 35 ILCS 200/16-160 — Appeal to the Property Tax Appeal Board
- Illinois DOR — Assessment Appeals
- Property Tax Appeal Board — Filing your appeal
- Property Tax Appeal Board — FAQ
- U.S. Census Bureau, county population estimates (2024) and county gazetteer (2024).