Property Tax Appeal Deadlines: When to File in Every State
TL;DR
Miss your property tax appeal deadline and you lose your right to appeal for the entire year. Deadlines vary wildly by state, from 30 days after receiving your notice to fixed calendar dates. Most fall between March and September. Check your assessment notice for your specific deadline, or use the state-by-state reference table below. Set a reminder the day your notice arrives.
The Deadline Is the Most Important Date in Your Appeal
You can have the strongest case in the world, backed by perfect comparable sales and documented assessment errors, and it will not matter if you file one day late. Property tax appeal deadlines are strict. No exceptions. No extensions. Miss it and you wait another full year.
This is the single biggest reason homeowners lose their chance to appeal. Not weak evidence. Not a bad hearing. Just a missed deadline. Do not let that happen to you.
State-by-State Property Tax Appeal Deadlines
The table below shows general filing windows for each state. Your specific deadline depends on your county and when your assessment notice is mailed. Always check your notice for the exact date.
| State | Typical Filing Window | Key Notes |
|---|---|---|
| Alabama | Within 30 days of notice | Board of Equalization |
| Alaska | 30 days from notice | Board of Equalization |
| Arizona | Within 60 days of notice | County Assessor, then State Board |
| Arkansas | Third Monday in August | County Equalization Board |
| California | July 2 - November 30 | Assessment Appeals Board |
| Colorado | May 1 - June 1 | County Board of Equalization |
| Connecticut | February 20 | Board of Assessment Appeals |
| Delaware | Varies by county | Board of Assessment Review |
| Florida | 25 days from TRIM notice | Value Adjustment Board |
| Georgia | 45 days from notice | County Board of Tax Assessors |
| Hawaii | Varies by county | Board of Review |
| Idaho | Fourth Monday in June | County Board of Equalization |
| Illinois | 30 days from publication | County Board of Review (Cook County has separate timeline) |
| Indiana | 45 days from notice | County Property Tax Assessment Board |
| Iowa | April 2 - April 30 | Board of Review |
| Kansas | 30 days from notice | County Appraiser informal, then BOTA |
| Kentucky | Within 1 year of notice | More generous timeline |
| Louisiana | 15 days from public notice | Very short window |
| Maine | 185 days from commitment | Board of Assessment Review |
| Maryland | 45 days from notice | Supervisor of Assessments |
| Massachusetts | February 1 (or 30 days from bill) | Board of Assessors |
| Michigan | March Board of Review (early March) | Specific dates set annually |
| Minnesota | April 30 (Open Book), then June Board | Two-step process |
| Mississippi | First Monday in August | Board of Supervisors |
| Missouri | Within 2 weeks of notice | Board of Equalization |
| Montana | Within 30 days of notice | County Tax Appeal Board |
| Nebraska | June 1 - June 30 | County Board of Equalization |
| Nevada | January 15 | County Board of Equalization |
| New Hampshire | March 1 (or as specified) | Board of Tax and Land Appeals |
| New Jersey | April 1 (or January 15 in revaluation years) | County Tax Board |
| New Mexico | 30 days from notice | County Valuation Protests |
| New York | Varies by locality (often May-June) | Board of Assessment Review |
| North Carolina | Varies by county | Board of Equalization and Review |
| North Dakota | First Tuesday in April | Local governing body |
| Ohio | January 1 - March 31 | County Board of Revision |
| Oklahoma | Within 30 days of notice | County Board of Equalization |
| Oregon | December 31 (or January 15) | Board of Property Tax Appeals |
| Pennsylvania | Varies by county (often August 1) | Board of Assessment Appeals |
| Rhode Island | 90 days from tax bill | Tax Assessor |
| South Carolina | 90 days from notice | County Assessor |
| South Dakota | Third Monday in March | Local Board of Equalization |
| Tennessee | During June Equalization | County Board of Equalization |
| Texas | May 15 (or 30 days from notice) | Appraisal Review Board |
| Utah | Within 45 days of notice | County Board of Equalization |
| Vermont | Varies by town | Board of Civil Authority |
| Virginia | Varies by locality | Board of Equalization |
| Washington | July 1 (or 30 days from notice) | County Board of Equalization |
| West Virginia | February 1 - February 20 | County Commission |
| Wisconsin | May Open Book, then Board of Review | Two-step process |
| Wyoming | Within 30 days of notice | County Board of Equalization |
Important: These are general guidelines. Your county may have different dates. Always verify with your local assessor's office or check your assessment notice for the exact deadline.
How to Make Sure You Never Miss the Deadline
Step 1: Know When Notices Go Out
Assessment notices are mailed at different times depending on your state and county. In many areas, they arrive between January and June. Know when to expect yours so you can watch for it.
Step 2: Set a Calendar Reminder
The moment you receive your assessment notice, set two reminders:
- One reminder 2 weeks before the deadline (to start your research)
- One reminder 3 days before the deadline (final deadline alert)
Step 3: File Early
Do not wait until the last day. Filing early gives you time to correct any problems with your submission. It also means you will get an earlier hearing date, so your case is resolved sooner.
Step 4: Confirm Receipt
If filing by mail, send it certified with return receipt. If filing online, save the confirmation number. If filing in person, get a stamped copy. You need proof that you filed on time in case there is any dispute.
What Happens If You Miss the Deadline
If you miss the filing deadline, your options are limited:
- Wait until next year - Most states only allow one appeal per assessment cycle. If you miss the window, you have to wait for the next assessment notice.
- Check for hardship exceptions - A few jurisdictions allow late filing for medical emergencies, military deployment, or similar circumstances. These are rare and hard to qualify for.
- Look for other savings - Even if you cannot appeal, you might qualify for exemptions you have not claimed yet. Check our exemptions you might be missing guide.
Special Deadline Situations
Newly Purchased Homes
If you recently bought your home and received a new or supplemental assessment, you usually get a separate appeal window. The deadline may differ from the regular annual timeline. See our guide for new homeowners for specifics.
Reassessment Years
When your jurisdiction does a full reassessment (some do this every 2-5 years), the filing deadlines may change. Reassessment years often bring different notice dates and sometimes longer filing windows.
Texas Protests
Texas uses the term "protest" instead of "appeal," and the deadline is May 15 or 30 days after your notice is mailed, whichever is later. See our Texas protest guide for the full process.
Frequently Asked Questions
What should I know about property tax appeal deadlines: when to file in every state?
Miss your property tax appeal deadline and you lose your right to appeal for the entire year. Deadlines vary wildly by state, from 30 days after receiving your notice to fixed calendar dates. Most fall between March and September.
What should I know about the deadline is the most important date in your appeal?
You can have the strongest case in the world, backed by perfect comparable sales and documented assessment errors, and it will not matter if you file one day late. Property tax appeal deadlines are strict. No exceptions.
What should I know about state-by-state property tax appeal deadlines?
The table below shows general filing windows for each state. Your specific deadline depends on your county and when your assessment notice is mailed. Always check your notice for the exact date.
How to Make Sure You Never Miss the Deadline?
Assessment notices are mailed at different times depending on your state and county. In many areas, they arrive between January and June. Know when to expect yours so you can watch for it.
What Happens If You Miss the Deadline?
If you miss the filing deadline, your options are limited:
What should I know about special deadline situations?
If you recently bought your home and received a new or supplemental assessment, you usually get a separate appeal window. The deadline may differ from the regular annual timeline. See our guide for new homeowners for specifics.
Do Not Wait Until the Last Minute
Take our free 2-minute quiz today to see if your property is over-assessed. If it is, you will have plenty of time to order your Evidence Packet and file before the deadline.