Property Tax Guide
Property Tax Protest Deadlines by State (2026)
Updated March 2026 · 4 min read
Missing your property tax protest deadline means losing the right to challenge your assessment for the entire tax year. Every state has its own timeline, and some deadlines are as early as January. Below is a complete table of property tax protest and appeal deadlines for all 50 states, updated for the 2026 tax year.
Deadlines can vary by county within a state, especially in states like Illinois, Pennsylvania, and Florida where notice-based deadlines depend on when your county mails assessments. Always verify your specific deadline with your county appraisal district or enter your address on ProtestMax for automatic detection.
All 50 State Deadlines
| State | Deadline | Official Term | |
|---|---|---|---|
| AlabamaAL | By December 31 of the tax year | Appeal | |
| AlaskaAK | 30 days from notice | Appeal | |
| ArizonaAZ | 60 days from notice | Appeal | |
| ArkansasAR | 3rd Monday in August | Appeal | |
| CaliforniaCA | Jul 2 - Nov 30 | Appeal | View guide |
| ColoradoCO | June 1 | Protest | View guide |
| ConnecticutCT | February 20 | Appeal | |
| DelawareDE | Varies by county | Appeal | |
| FloridaFL | 25 days from TRIM notice | Petition | View guide |
| GeorgiaGA | 45 days from notice | Appeal | View guide |
| HawaiiHI | Varies by county | Appeal | |
| IdahoID | 4th Monday in June | Appeal | |
| IllinoisIL | Varies by township | Appeal | View guide |
| IndianaIN | 45 days from notice | Appeal | |
| IowaIA | April 25 - May 5 | Protest | |
| KansasKS | 30 days from notice | Appeal | |
| KentuckyKY | 1st Monday in May | Appeal | |
| LouisianaLA | 15 days after public notice | Appeal | |
| MaineME | 185 days from commitment | Abatement | |
| MarylandMD | 45 days from notice | Appeal | |
| MassachusettsMA | February 1 (Q3 bill date) | Abatement | |
| MichiganMI | March Board of Review | Appeal | View guide |
| MinnesotaMN | April 30 | Appeal | |
| MississippiMS | Varies by county | Appeal | |
| MissouriMO | 2nd Monday in July | Appeal | |
| MontanaMT | 30 days from notice | Appeal | |
| NebraskaNE | June 30 | Protest | |
| NevadaNV | January 15 | Appeal | |
| New HampshireNH | March 1 (abatement) | Abatement | |
| New JerseyNJ | April 1 | Appeal | View guide |
| New MexicoNM | 30 days from notice | Protest | |
| New YorkNY | March 1-16 (varies) | Grievance | View guide |
| North CarolinaNC | Varies (revaluation years) | Appeal | |
| North DakotaND | 2nd Monday in April | Appeal | |
| OhioOH | March 31 | Complaint | View guide |
| OklahomaOK | Varies by county | Appeal | |
| OregonOR | December 31 | Appeal | |
| PennsylvaniaPA | Aug-Oct (varies by county) | Appeal | View guide |
| Rhode IslandRI | 90 days from tax bill | Appeal | |
| South CarolinaSC | 90 days from notice | Appeal | |
| South DakotaSD | 3rd Monday in March | Appeal | |
| TennesseeTN | June (revaluation years) | Appeal | |
| TexasTX | May 15 or 30 days from notice | Protest | View guide |
| UtahUT | September 15 | Appeal | |
| VermontVT | Varies by town | Grievance | |
| VirginiaVA | Varies by locality | Appeal | |
| WashingtonWA | July 1 | Appeal | View guide |
| West VirginiaWV | February 1 - 20 | Appeal | |
| WisconsinWI | Objection at Board of Review | Objection | |
| WyomingWY | 30 days from notice | Appeal |
Important Notes
- Notice-based deadlines(e.g., "30 days from notice") start when your county mails the assessment notice, not when you receive it. File early to avoid missing the window.
- Some states allow late filing under certain circumstances, such as military service, medical hardship, or appraisal district errors. Check with your county for exceptions.
- Deadlines that fall on weekends or holidays typically extend to the next business day, but this varies by jurisdiction.
- For detailed information about your state's process, forms, and assessment ratio, visit the state-by-state guides.
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ProtestMax is a document preparation and guidance service, not a law firm. We do not provide legal advice and do not represent property owners in any legal proceeding. Use of this platform does not create an attorney-client relationship. Property owners are responsible for verifying all information before submission. Consult a licensed attorney or property tax consultant for legal representation.