How to find your property tax appeal deadline in any county

Last updated 2026-07-09

Why does the appeal deadline vary so much from county to county?

Property taxes are a state and local job. The federal government sets no rules here at all. Every state legislature writes its own assessment calendar, appeal window, and filing procedure, and then counties often pile local rules on top of that.

Some states start the clock the day your assessment notice is mailed. Others use a fixed calendar date every year, no matter when your notice showed up. A few tie it to the date the assessment roll gets certified, which can land months after notices go out. Three different clocks. None of them sync across state lines.

Texas gives most homeowners until May 15 or 30 days after the notice is delivered, whichever is later, under Texas Tax Code Section 41.44 ^[1]. California gives you 60 days from the mailing date of the Notification of Proposed Assessment, but if no notice went out, the window stays open until November 30 of the fiscal year ^[2]. New York City sets a March 15 deadline for most properties, which has nothing to do with when you personally opened your mail ^[3].

County-level variation exists because some states hand the appeal board function to individual counties. Cook County, Illinois runs its own Board of Review with a township-by-township calendar ^[4]. Los Angeles County has a separate Assessment Appeals Board with a window that usually runs July 2 through November 30 ^[5]. Live in one of these big counties, and state-level guidance only gets you halfway there.

Where exactly do you look to find your specific deadline?

Start with the assessment notice in your hand. Most states require the notice to print the deadline in plain language. Flip it over, read the fine print, and look for phrases like "last day to file a protest" or "appeal must be filed by." Write that date down. Then verify it independently, because notices sometimes carry errors.

Next, go to your county assessor's website. Search your county name plus "appeal deadline" or "protest deadline." Most assessors publish a page with this year's calendar. If you can't find it fast, call the office. They field this question dozens of times a day and can answer in under two minutes.

If your county uses a separate appeals body (a Board of Equalization, Board of Review, or Assessment Appeals Board), check that agency's site too. The assessor and the appeals board are different offices. The deadline you actually need is the appeals board's filing deadline, which can differ from the assessor's publishing schedule.

For a state-level starting point, your state Department of Revenue or Department of Taxation usually puts out an annual property tax guide with the statutory deadline. Those are the most authoritative single documents you'll find.

Here's what trips people up. Some counties set different deadlines for residential versus commercial property, or for formal appeals versus informal review requests. An informal review with the assessor's office often runs on a different clock, sometimes earlier, than a formal appeal to the board. Both can be worth doing. They are not the same process.

State-by-state property tax appeal deadline comparison

The table below covers 20 of the most populated states. These are statutory deadlines as of mid-2025. Always verify with your specific county, because local rules can shorten the window.

State	Typical Deadline	Trigger Event	Governing Authority
California	60 days from notice or Nov 30	Notice mailed or roll certified	Revenue & Taxation Code 1603 [2]
Texas	May 15 or 30 days after notice	Notice delivered	Tax Code 41.44 [1]
Florida	25 days from TRIM notice	Notice mailed (Aug-Sept)	F.S. 194.011 [6]
New York (NYC)	March 15	Fixed calendar date	NYC Charter & Admin Code [3]
Illinois (Cook Co.)	Per township schedule	Assessment published	Cook Co. Board of Review [4]
Georgia	45 days from notice	Notice mailed	O.C.G.A. 48-5-311 [7]
Pennsylvania	Varies by county (30-90 days)	Notice mailed	72 P.S. 5020-518
Ohio	30 days from notice or Mar 31	Notice mailed or fixed date	ORC 5715.19 [12]
Michigan	July 31	Fixed calendar date	MCL 205.735a
Minnesota	April 30 (Tax Court)	Fixed calendar date	Minn. Stat. 278.01 [8]
New Jersey	April 1 (or 45 days from notice)	Fixed date or notice	N.J.S.A. 54:3-21 [11]
Arizona	60 days from notice	Notice mailed	ARS 42-16105
Colorado	June 1 (for odd-year reassessments)	Fixed calendar date	CRS 39-8-106
North Carolina	Fixed county schedule	Board of Equalization meetings	NCGS 105-322
Virginia	Local board schedule	Varies by locality	VA Code 58.1-3379
Washington	60 days from notice	Notice mailed	RCW 84.48.010
Nevada	Jan 15 (state board)	Fixed calendar date	NRS 361.345
Tennessee	45 days from notice	Notice mailed	TCA 67-5-1412
Missouri	Third Monday in July	Fixed calendar date	RSMo 137.385
Maryland	45 days from notice	Notice mailed	Md. Tax-Prop. 14-502

This table is a summary. The statutory citations let you pull the current text yourself. Deadlines shift when a legislature amends the tax code, so reading the actual statute is worth the extra step.

What if you missed your appeal deadline?

Missing the deadline hurts, because most appeal boards have no power to accept a late filing. This is a jurisdictional rule, not a preference. Boards enforce it hard.

A few doors still exist. First, check whether your jurisdiction allows an appeal on the grounds that the property was never assessed or was illegally assessed. Some states carve out exceptions for clerical errors or fraud that let you file outside the normal window. Texas allows a late protest under the Tax Code when the property owner had no notice of the assessed value ^[9].

Second, some states let you file directly with a court (Tax Court, Circuit Court, or equivalent) even after the administrative deadline passes, usually for a longer stretch. Minnesota allows Tax Court petitions through April 30 of the year following the assessment year ^[8]. That's a second runway if you missed the administrative appeal.

Third, an informal conversation with the assessor's office costs nothing and sometimes gets you a voluntary correction, especially for plain errors like a wrong square footage or a phantom extra bathroom. The assessor can issue a corrected assessment no matter what deadline has passed. It's not guaranteed and it's not a legal right. It happens anyway.

If none of that fits, do this: the day your next assessment notice arrives, calendar next year's deadline, and start building the evidence file while the data is still fresh.

How do you track the deadline if you moved or didn't get a notice?

Assessment notices go to the address on record with the assessor. If you recently bought, refinanced, or moved, the notice may have landed at a prior address or in your mortgage servicer's tax escrow department. The servicer gets it because the lender cares about assessed values. They don't always forward it to you.

None of that stops the clock. In most states the deadline runs from the mailing date, not from the day you read the notice. The legal standard in many jurisdictions is that notice is complete when mailed to the last known address in the assessor's records.

So protect yourself. Update your mailing address with the county assessor the moment you close on a property. Most counties let you do this online in five minutes. Then check the assessor's portal every spring (or whenever your assessment cycle runs) and look up your assessed value, even if no notice arrived. If it jumped, treat that as your starting gun and find the deadline right away.

If the notice truly never got mailed because of an assessor error, many states treat that as grounds to appeal outside the normal window. Documenting that you updated your address and still got nothing makes that argument much stronger.

Does the deadline change in reassessment years versus off years?

Yes, in many states it does. States that run mass reassessments on a cycle (every two, three, or four years) sometimes compress the appeal window in reassessment years to handle the flood of appeals, or they stretch it because so many notices go out at once.

California does annual assessments but triggers a Proposition 8 reduction review in years when the market drops, and that review has its own filing window separate from the standard appeal ^[10]. Cook County, Illinois reassesses different townships on a rotating three-year schedule, and the Board of Review calendar moves accordingly each year ^[4]. Pennsylvania hands the reassessment cycle entirely to counties, so Allegheny County and Lancaster County sit on completely different schedules.

Safest rule: treat every tax year as if the deadline might have moved. You appealed and won two years ago? Great. Don't assume the same window applies now. Check the current calendar every single year.

What's the fastest way to verify the deadline right now?

Here's the exact sequence. About ten minutes.

Step one: find your assessment notice and look for a deadline date. Got it? Write it down.

Step two: go to your county assessor's official website (a .gov domain, or a county-operated site). Search for "appeal" or "protest." Look for a page titled something like "Appeal a Property Value" or "Property Assessment Appeal Deadlines." Most counties refresh this page every year.

Step three: if the assessor's site doesn't show a current deadline, search for your state revenue department's property tax guide. These come out annually and include the statutory window.

Step four: still unsure? Call the assessor's office. Ask two questions: what is the deadline to file a formal appeal this year, and is there a separate deadline for an informal review request? Write down the name of the person you spoke with and the date.

Step five: check the deadline against your state statute directly. The table above gives you the citation for your state. Pull the text on your state legislature's website and confirm the window. Statutes change, and websites lag behind amendments.

If you're planning a DIY appeal, resources like the TaxFightBack appeal kit walk you through building the evidence file and completing the forms. That matters, because a complete filing on deadline day beats an incomplete one by a mile.

For county-specific walkthroughs, see our guides on cook county tax assessor tax bill, bexar county tax assessor, and gwinnett county tax assessor.

What documents do you need to file before the deadline?

Filing on time with a thin packet beats filing late with a perfect one almost every time. Most appeals boards accept a minimal filing (often just a completed form with your name, parcel number, and a statement that you're appealing) and let you submit evidence later. Confirm this with your board, because a few require all evidence at filing.

At minimum you usually need three things: your completed appeal or protest form, your parcel identification number (on the notice or your tax bill), and your stated basis for appeal (overvaluation is the most common). Some jurisdictions want a copy of the assessment notice. A few ask for your opinion of value at filing.

Evidence, meaning comparable sales, an independent appraisal, or documentation of property condition, can usually go in before the hearing date, which lands weeks or months after the filing deadline. Don't let "I need more time to gather evidence" be the reason you miss the deadline. File a protective appeal first. Gather evidence second.

Big counties with heavy real estate activity have paperwork quirks worth knowing. Our la county property tax and santa clara property tax guides cover the filing requirements for those assessors.

Does hiring a property tax consultant extend your deadline?

No. Hiring anyone, a consultant, an attorney, a contingency firm, does not extend the filing deadline by a single day. Some firms imply they handle the timing for you, which is true, but the legal deadline is fixed regardless of who files.

Weighing DIY versus hiring? The deadline itself is a reason to lean DIY. You can file a protective appeal yourself in ten minutes, then decide later whether to bring in help. Wait for a firm to sign you up, review your file, and prep their version, and you might find yourself cutting it dangerously close.

One timing situation where professional help genuinely earns its keep: some jurisdictions require evidence (specifically a fee appraisal) at the time of filing. If your county is one of those and you need a licensed appraiser to hit the deadline, build that lead time into your calendar. Appraisers in high-volume markets (Houston, Dallas, Chicago, the New York suburbs) book out fast in the weeks before major deadlines.

For homeowners running their own appeal from evidence to hearing, the TaxFightBack appeal kit covers form completion, comp selection, and hearing prep, so you're not decoding format requirements at the last minute.

What happens after you file, and when is the hearing?

Filing by the deadline puts you in a queue. The appeals board schedules hearings, and in big counties that takes months. Cook County's Board of Review handles hundreds of thousands of appeals a year ^[4], which pushes some hearings six to nine months past the filing deadline. In smaller counties you might get a date within 30 to 60 days.

Most jurisdictions notify you of the hearing date by mail. Some now use email if you opted in. Mark your calendar the day the notice arrives. Missing your hearing counts the same as withdrawing your appeal in most states.

Many counties offer a settlement or informal review step before the formal hearing. The assessor's office reviews your evidence and may offer a reduced value to skip the hearing. Accepting is voluntary. If the offer stinks, decline and go to the formal hearing.

After a decision, you usually face another deadline: the right to appeal the board's ruling to a higher administrative body or a court. In Minnesota, that second-level appeal goes to Tax Court and has its own deadline under Minn. Stat. 278.01 ^[8]. Miss the post-decision deadline and further review is gone. Read the decision letter carefully the day it lands.

For state-specific post-filing timelines, our guides on montgomery county property tax and hennepin county property tax lay out what comes next in those markets.

How do you set up a system to never miss this deadline again?

Simplest system there is: the day your assessment notice arrives, enter the appeal deadline as a calendar event with a reminder two weeks earlier. That's it. Two events, five minutes. The two-week buffer buys you time to pull comparable sales and finish the forms without a scramble.

If your county publishes a fixed annual deadline (not tied to the notice date), set a recurring reminder for that date each year, before the notice even arrives. Florida makes this easy to predict: the TRIM notice goes out in August and the deadline is 25 days later ^[6].

Landlords and investors juggling multiple properties across counties should keep a plain spreadsheet: one row per property, one column for county, one for this year's deadline, one for filing status. This matters more than people expect. In Texas, missing the May 15 deadline means losing the right to protest for that year on most grounds ^[1].

Subscribe to the county assessor's email list. Many jurisdictions send an annual reminder when assessments publish. It's not universal, but it costs nothing to sign up.

Frequently asked questions

How do I find my county's property tax appeal deadline if I lost my assessment notice?

Go straight to your county assessor's official website and search "appeal deadline" or "protest deadline." Can't find it? Call the assessor's office and ask for this year's deadline for formal appeals. You can also look up your current assessed value through the assessor's online parcel search, which usually shows the assessment date and helps you calculate the deadline window from your state's statute.

What is the property tax appeal deadline in Texas?

Under Texas Tax Code Section 41.44, the protest deadline is May 15 or 30 days after the notice of appraised value is delivered, whichever is later. If you got no notice and the appraised value changed, you still have until May 15. Missing this deadline generally closes a formal ARB protest for that tax year, though late protest options exist for properties that received no notice.

What is the property tax appeal deadline in California?

California Revenue and Taxation Code Section 1603 gives you 60 days from the mailing date of your Notification of Proposed Assessment to file with your county Assessment Appeals Board. If no formal notice was mailed, the window stays open until November 30 of the fiscal year under assessment. Los Angeles County's Board generally accepts filings from July 2 through November 30 for the annual roll.

What is the property tax appeal deadline in Florida?

Florida Statute 194.011 sets the deadline at 25 days from the mailing of the Truth in Millage (TRIM) notice, which counties typically mail in August or early September. The exact mailing date varies by county, so check your notice for the printed deadline. Filing with your county Value Adjustment Board after that 25-day window is generally not accepted.

Can you appeal property taxes after the deadline has passed?

Most appeal boards have no power to accept late filings, so the short answer is no. Exceptions exist for properties never properly notified due to an assessor error, for clerical errors correctable outside the appeal process, or for illegal assessments. Some states also allow a direct court filing after the administrative deadline. An informal request to the assessor for a voluntary correction is always worth trying regardless of timing.

Is the informal review deadline the same as the formal appeal deadline?

Not always. Many counties run an informal review where you contact the assessor's office directly to question a value, and that window is sometimes earlier than the formal appeal deadline. Doing the informal review first is usually smart because it costs nothing and sometimes wins a correction without a hearing. But file the formal appeal by the statutory deadline anyway, since the informal process has no legal teeth on its own.

Does the property tax appeal deadline apply to both residential and commercial properties?

Usually yes, but some jurisdictions set different deadlines or procedures by property type. New Jersey has different rules for commercial and residential under its County Tax Board structure. California's appeals process applies to all property types, but the evidence requirements differ sharply for commercial. Always confirm whether your specific property class has a separate deadline by checking your county assessor or appeals board directly.

How much does it cost to file a property tax appeal?

Most jurisdictions charge a modest filing fee for formal appeals, commonly $15 to $75 for residential properties, though fees vary widely. Some counties charge nothing. California county Assessment Appeals Boards set their own fees; Los Angeles County charges $60 as of recent filings. Commercial appeals sometimes carry higher fees. Check your county board's fee schedule before filing. The fee is generally non-refundable whether you win or lose.

What if my county doesn't have a published appeal deadline online?

Call the assessor's office and the separate appeals board (Board of Equalization, Board of Review, or equivalent) directly. Ask both for the current-year deadline for formal appeals on residential property. Then pull the state statute from your state legislature's website to confirm. Statutory deadlines are public law and legally enforceable, so the published statute is the final word even when the county website is stale.

How long does a property tax appeal take after you file?

Timelines vary enormously. Small counties may schedule hearings within 30 to 60 days of filing. Large counties like Cook County, Illinois handle hundreds of thousands of appeals, and hearings can run six to nine months out. Most boards notify you of your hearing date by mail. Budget two to twelve months from filing to decision. If the board offers a settlement before the hearing, that can wrap things up faster.

Do I need a lawyer or appraiser to file before the deadline?

No. Homeowners can file a property tax appeal without professional help in every U.S. jurisdiction. Most residential appeals are filed pro se. An independent appraisal can strengthen your evidence but is rarely required at the filing stage, and in many counties you can submit evidence after you file but before the hearing. A lawyer is generally only necessary for complex commercial appeals or Tax Court petitions.

What is the property tax appeal deadline in New York City?

For most NYC residential properties (Class 1 and 2), the deadline to file with the Tax Commission is March 15 of the tax year, or the next business day if March 15 falls on a weekend or holiday. This is a fixed calendar date, not tied to when you got a notice. NYC's property tax year runs July 1 to June 30, and the March 15 deadline falls before the tax year begins.

What's the property tax appeal deadline in Georgia?

Under O.C.G.A. 48-5-311, property owners have 45 days from the mailing date of the assessment notice to file an appeal with the county Board of Tax Assessors. Georgia offers three appeal options: an appeal to the Board of Equalization, binding arbitration, or hearing officer review for properties over $500,000. The 45-day window applies to all three tracks. See our guide on gwinnett county tax assessor for a county-level example.

How does the property tax appeal deadline work in Illinois and Cook County?

Cook County uses a township-by-township assessment cycle, with the Board of Review publishing a separate appeal window for each township each year. The state statutory framework sits in the Property Tax Code, but the practical deadline you need is on the Cook County Board of Review's published township schedule, which changes annually. Missing your township's window means waiting until that township's next reassessment cycle for a Board of Review appeal.

Sources

1. Texas Legislature, Tax Code Section 41.44: Texas property tax protest deadline is May 15 or 30 days after the notice of appraised value is delivered, whichever is later
2. California State Board of Equalization, Revenue and Taxation Code Section 1603: California assessment appeal must be filed within 60 days of the mailing of the Notification of Proposed Assessment, or by November 30 if no notice was mailed
3. New York City Tax Commission: NYC Tax Commission filing deadline is March 15 for most residential and commercial property classes
4. Cook County Board of Review: Cook County Board of Review handles hundreds of thousands of appeals annually on a township-by-township schedule
5. Los Angeles County Assessment Appeals Board: LA County Assessment Appeals Board accepts filings for the annual roll generally from July 2 through November 30
6. Florida Legislature, Florida Statute 194.011: Florida TRIM appeal deadline is 25 days from the mailing of the Truth in Millage notice
7. Georgia General Assembly, O.C.G.A. 48-5-311: Georgia property owners have 45 days from the mailing of the assessment notice to file an appeal
8. Minnesota Legislature, Minn. Stat. 278.01: Minnesota Tax Court petitions for property tax appeals must be filed by April 30 of the year following the assessment year
9. Texas Legislature, Tax Code Section 41.44 (late protest provision): Texas allows a late protest for property owners who had no notice of the assessed value under specific conditions
10. California Board of Equalization, Proposition 8 Assessment Review: California Proposition 8 reduction review process has a separate filing window from the standard assessment appeal
11. New Jersey Legislature, N.J.S.A. 54:3-21: New Jersey property tax appeal deadline is April 1 or 45 days from the date the assessment notice is mailed, whichever is later
12. Ohio Legislature, Ohio Revised Code 5715.19: Ohio property tax complaint must be filed within 30 days of notice or by March 31, whichever is applicable