Logan County property tax appeal 2027: deadline, forms and how to file
To appeal a Logan County assessment, file with the Logan 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.
County assessment publication notice for 2026 (published fall 2026): the Board of Review accepts complaints beginning October 2, 2026, and the final date for all townships is November 2, 2026, per the posted 2026 preamble and publication.
Data as of 20 Oct 2026 · Logan County Board of ReviewCheck your own assessment
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How to file in Logan County
- Step 1
File the appeal
Use the method your notice lists, usually Form PTAX-230, 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 Logan 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 |
|---|---|---|---|
| Assessment Appeal Form (PTAX-230 with address) | PTAX-230 | BOR complaint form for non-farm property | |
| 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 | Logan 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 Logan 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.
Logan County questions
When is the Logan County appeal deadline for 2027?
No 2027 date is published yet. The board’s rule: Board of Review rules: appeals are due no later than 30 calendar days after legal publication of assessments for the township, with complaint and all evidence filed by 4:30 p.m. on the final date; mail must be postmarked on or before the closing date (metered mail also needs the USPS date stamp if it arrives after the deadline). Logan County sets one final date for all townships (2026: November 2, 2026); the 2027 date had not been published. Fax and email are not accepted.
How do I appeal my assessment in Logan County?
File the Assessment Appeal Form (PTAX-230 with address) with the Logan County Board of Review, Logan County Supervisor of Assessments, Board of Review, 122 North McLean Street, Lincoln, IL 62656. Mailed complaints count as filed on the postmark date.
Should I talk to the assessor first?
Yes. The township assessor or the Logan County Supervisor of Assessments can fix record errors informally. Still file with the Logan 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 Logan County Supervisor of Assessments (Chief County Assessment Office)?
Mail: Logan County Supervisor of Assessments, Board of Review, 122 North McLean Street, Lincoln, IL 62656. Phone: 217-732-9635. Hours and walk-in details: logancountyil.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
Menard County · De Witt County · Tazewell County · Macon County · Mason County · Sangamon County · McLean County
- Logan County Supervisor of Assessments
- Logan County Board of Review Rules (PDF)
- Logan County Assessment Appeal Form (PDF)
- Logan County 2026 Preamble and Publication (PDF)
- Logan County Instructions for filing an appeal
- Logan County comparable grid sheet for assessment appeal (Word)
- 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).