How to submit a written objection to a proposed assessment

Last updated 2026-07-11

What is a written objection to a proposed assessment?

A written objection tells the taxing authority, in writing and on the record, that you disagree with the value it put on your property. It preserves your right to a formal review. Skip it, and the proposed number becomes final. Your tax bill follows.

States use different words for the same thing. Texas and Colorado call it a "protest." Illinois and New York call it an "appeal." Wisconsin uses the word "objection" outright, and its statutes require the written form to be filed before the Board of Review even opens. ^[1] The label changes. The function does not: you are building a record that you dispute the number and want a hearing or a written review.

Here is a distinction that trips people up. A proposed assessment notice is not your tax bill. The notice lands before the tax roll closes. That gap between the notice date and the roll-close date is exactly when a written objection does its work. Once the roll closes and the bill goes out, most jurisdictions push you into a slower, harder process that often makes you pay under protest first. ^[2]

You do not need a lawyer to file. You do not need an appraiser yet either. You need the notice, a parcel number, a clear statement of what you think the value should be, and a reason. Everything else is supporting evidence you add later.

What is the deadline to file a written objection?

The deadline is the one thing that will kill your appeal outright. These deadlines are jurisdictional, set by statute, and assessors have almost no power to extend them. Courts have thrown out appeals filed a single day late.

The table below shows the objection window in several major jurisdictions. These are statutory deadlines as of 2025. Always check against your current notice, because legislatures move them.

Jurisdiction	Deadline trigger	Window to file
Texas (all counties)	Appraisal notice mailed	30 days from notice date or May 15, whichever is later [3]
Illinois (Cook County)	Assessment change notice	30 days from publication [4]
New York City	Tentative assessment roll	March 1 (Class 1) or March 15 (Class 2/4) each year [5]
California (all counties)	Assessment notice or July 2	July 2 through November 30 of the assessment year [6]
Georgia (all counties)	Assessment notice mailed	45 days from notice date [7]
Minnesota (all counties)	April 1 assessment date	Local Board of Appeal opens in April; county board by June 30 [8]
Wisconsin	Assessment roll open date	Board of Review session, typically May [1]

A few things jump out. California gives you a wide window, July 2 through November 30, but that window is absolute. Texas ties the clock to the notice date, so a late-arriving notice still starts your countdown. In Georgia, the 45 days runs from the date on the notice, not the day you opened the envelope.

The practical rule is boring and it works. Write the deadline on your calendar the day the notice arrives. Set a second reminder two weeks out. Do not wait until the final week. Assessor offices jam up near deadlines, and a processing delay can hurt you even when you mailed on time.

What information must a written objection include?

Most jurisdictions require a minimum set of elements before an objection counts as legally sufficient. Leave one out and the whole thing can be tossed without review.

Required in almost every jurisdiction:

1. Your name and mailing address (the owner of record). 2. The property address and parcel identification number (PIN or APN). It is on the notice, or on your county's property search portal. 3. The assessed value shown on the notice, to the dollar. 4. Your claimed correct value. This is what you think the property is actually worth, or what the assessed value should be. You do not have to prove it yet. You just have to state it. 5. The grounds for your objection. This is the single most important sentence you will write. 6. Your signature and the date.

Grounds separate a real objection from a complaint letter. The ones assessors and review boards recognize include:

• Overvaluation (the assessed value tops market value)
• Unequal appraisal (your property sits at a higher share of market value than comparable homes, even if your own value is right in isolation)
• Incorrect property data (wrong square footage, wrong bedroom count, wrong lot size on record)
• Exempt property included in the assessment (homestead, agricultural, charitable)
• Lack of jurisdiction or procedural defect (rare, but real)

Texas Tax Code Section 41.41 lists grounds including that "the appraisal district lacks jurisdiction" and "the property should not be taxed in the district," on top of the standard value dispute. ^[3] Illinois's Property Tax Appeal Board makes you specify whether you are appealing on overvaluation, equity, or both. ^[4]

Here is the mistake I see constantly. "I think my assessment is too high" with nothing behind it. That technically states overvaluation, but it hands the reviewer nothing. Compare: "the proposed assessed value of $485,000 exceeds the property's market value, which recent sales of comparable homes in my neighborhood support at approximately $390,000." That sentence does real work.

How do you actually submit the objection?

How you deliver the objection matters as much as what it says. An objection sent to the wrong office, or in the wrong format, dies the same death as a late one.

Figure out who receives it before you write anything. The county assessor's office handles first-level review in most states. In Texas it is the Appraisal District. In Illinois it can be the County Assessor first, then the Board of Review, then the Property Tax Appeal Board as you climb. ^[4] In New York City the first stop is the Tax Commission. ^[5] Read the notice. It names the office.

Accepted delivery methods vary:

• In person: bring two copies. Have the clerk stamp one and hand it back as your proof.
• U.S. Mail: certified, return receipt requested, every time. Keep the green card. The postmark is your filing date in most states, not the day it arrives.
• Fax: some assessors still take it. Confirm the number is current and keep the transmission confirmation page.
• Online portal: spreading fast. Texas counties including Bexar County take online protests through the iFile system; see also: [Bexar County tax assessor] Cook County has its own online appeal system. see also: [Cook County tax assessor tax bill] Screenshot the confirmation page and save the confirmation number.

Do not email a generic inbox unless the official instructions say email is accepted. Email is not certified mail, and most assessors will not treat an email timestamp as a legal filing date.

Mailing? Send it so it lands at least three business days before the deadline. If the deadline falls on a weekend or holiday, most states bump it to the next business day, but confirm with your county instead of guessing.

What evidence should you attach to your objection letter?

The letter opens the door. The evidence wins the case. Most jurisdictions do not require you to attach evidence at the initial filing, but including it does two things: it shows the reviewer you are serious, and in many counties it triggers an informal review before any formal hearing gets scheduled. Informal review is faster and often ends in a settlement.

The strongest evidence for a value dispute is sales comps. Find three to six recent sales (ideally within the past six to twelve months) of homes that are genuinely comparable: similar square footage, lot size, age, condition, and neighborhood. Your county's property search tool usually carries sales data for free. Zillow, Redfin, and the county recorder's office all work. Put the comps in a simple table: address, sale date, sale price, square footage, price per square foot.

For incorrect property data, the evidence is simpler. A tape measure and a camera. If the assessment card says 2,400 square feet and your home is 1,950, document it room by room. Take dated photos of anything that drags value down: deferred maintenance, foundation cracks, water damage.

For unequal appraisal, you need the assessed values of comparable properties. Pull them from the public property search and show that homes like yours sit at a lower ratio of market value. Texas calls this an "equity appeal" under Tax Code Section 41.43. ^[3]

One piece of evidence most homeowners never think to grab: the assessor's own property record card. Request it. It is public record in almost every state, and it shows the exact data the assessor used to set your value. Errors on that card (wrong square footage, wrong construction quality grade, a finished basement coded as unfinished) are among the fastest paths to a reduction.

If you want a structured way to gather and present all of this, the TaxFightBack DIY appeal kit walks through comp selection, data error checks, and formatting for submission, with no contingency firm skimming your savings.

What should the objection letter actually say?

Here is a template structure. Swap in your jurisdiction's terminology.

---

[Your Name] [Your Mailing Address] [Date]

[Assessor's Office Name] [Office Address]

Re: Notice of Objection to Proposed Assessment Property Address: [Street address] Parcel/Account Number: [Number from your notice]

Dear [Board of Review / Chief Appraiser / Assessor's Name],

I am writing to formally object to the proposed assessed value of [$ amount] for the above-referenced property for tax year [year]. I received the assessment notice dated [date on the notice].

I believe the correct market value of the property is approximately [$ your estimated value], based on [briefly state your primary ground: comparable sales in the neighborhood, an error in the property data, inequitable assessment compared to similar properties].

Attached to this objection are the following exhibits:

• Exhibit A: Three comparable sales from [neighborhood], sold [date range], priced between [$ range]
• Exhibit B: The assessor's property record card showing [specific data error if applicable]
• Exhibit C: Photographs of the property dated [date]

I request a formal review and, if available, an informal conference before any hearing date. Please confirm receipt of this objection and provide the scheduled review date in writing.

Sincerely, [Signature] [Printed Name] [Phone Number] [Email Address]

---

Keep the tone factual and flat. Assessors and board members read hundreds of these. A letter that is calm, organized, and specific gets read closely. A letter that rants about the unfairness of taxes gets skimmed and set aside.

Skip round numbers for your claimed value. If your comps support $389,500, write $389,500. Round numbers ($390,000, $400,000) read as a guess. A specific number reads as analysis.

What happens after you submit a written objection?

The process changes by jurisdiction, but the sequence is steady.

First, you get an acknowledgment. It might be instant (a portal confirmation number) or take a few weeks by mail. Hear nothing within three weeks? Call the office and confirm they have it.

Second, many jurisdictions offer an informal review before any formal hearing. A staff appraiser reads your objection and evidence and may offer a settlement, a reduced assessed value you can take or leave. Accepting is usually faster and skips the hearing. Rejecting sends you to the board.

Third, if no settlement lands, you get a notice with a hearing date. You present your evidence in person, or in some jurisdictions by written submission alone. The board rules in writing.

Fourth, if you lose at the board, most states let you climb further, to a state-level administrative body or to district or circuit court. In Illinois that is the Property Tax Appeal Board. ^[4] In New York it is Small Claims Assessment Review (SCAR) for residential property. ^[5] In California it is the county Assessment Appeals Board, then Superior Court. ^[6]

Here is the timing reality most homeowners never see coming. This takes a while. In big jurisdictions like Cook County and LA County, informal reviews can run several months, and formal hearings can stretch twelve to eighteen months from filing. see also: [LA County property tax] Your tax bill may issue before any of it resolves. When that happens, pay the bill (or at least the undisputed portion) to dodge penalties. Any reduction granted later comes back as a refund or credit.

For Montgomery County, Maryland and other places running on a triennial reassessment cycle, a win locks in your lower value for the whole cycle, which multiplies the savings. see also: [Montgomery County property tax]

Can you file a written objection without attending a hearing?

Yes, in many jurisdictions. Some boards let you submit a "written presentation" instead of showing up. The board reviews your letter and exhibits on the record and issues a decision.

Texas ARB hearings (Appraisal Review Board) can run on written affidavit for certain property types and values. ^[3] Many New York counties allow affidavit-based small claims. Some California Assessment Appeal Boards permit written submissions for residential cases below a set assessed value.

The cost of staying home: you cannot answer the assessor's presentation in real time, and you cannot field the board's questions. If your evidence is clean and simple, written submission works fine. If the case is messy, show up.

For commercial owners running appeals across several jurisdictions, showing up is almost always worth it. see also: [NYC property tax] see also: [Hennepin County property tax]

Are there filing fees for a written objection?

For residential property in most jurisdictions, no. The initial objection or protest is free. That is by design. Assessment appeals are a statutory right, and states do not want cost gating that right.

Fees show up at escalation levels. Illinois's Property Tax Appeal Board charges $60 for residential and $150 for commercial. ^[4] California's Assessment Appeals Board fees vary by county; Los Angeles County charges between $30 and $60 depending on the assessment year. see also: [Los Angeles County property tax]

Some states make you pay the disputed portion of your taxes (or bond it) before you can appeal to the courts. This is the "pay to play" rule. It does not apply at the initial administrative level, only at the court stage.

Contingency firms typically take 25 to 50 percent of your first year's tax savings, which can run into thousands of dollars. ^[10] A DIY written objection costs you postage and time.

What mistakes cause written objections to be dismissed or denied?

Missing the deadline is the leading cause of dismissal, and it is not close. Courts and boards treat a blown deadline as a jurisdictional defect with almost no exceptions.

Filing with the wrong office runs a close second. Send it to the county treasurer instead of the assessor, or to the wrong district, and it will not get processed in time even if the mail date would have been fine.

Stating no specific grounds gets you denied on the merits. "I think it's too high" gives the board nothing to weigh.

Comparing your home to properties in other neighborhoods or with wildly different features wrecks your credibility. Use comps a reasonable person would call comparable.

Leaving off your parcel number can send the objection into an internal void. Always include it.

Grabbing the first informal offer without checking it. If the assessor floats a small reduction, that does not make it the right value. Counter it, or decline and go to the formal hearing.

Georgia homeowners: miss the 45-day window and you lose the right to appeal that year's assessment entirely under O.C.G.A. Section 48-5-311. ^[7] see also: [Gwinnett County tax assessor] see also: [Bibb County tax assessor]

Minnesota homeowners: the April open book meeting with the assessor is informal and a smart first move, but if you skip it and jump straight to the County Board of Equalization, some counties want proof you tried the open book meeting first. ^[8]

Does a written objection work differently for commercial property?

The form of the objection is mostly the same. The evidence standard is higher, and the dollar stakes change how you think about the whole thing.

Commercial assessments usually run on the income approach (capitalized net operating income) rather than the sales comparison approach used for homes. Your objection has to attack that income model head-on: rent rolls, vacancy rates, cap rates, operating expense ratios. Sales of similar commercial buildings matter, but income data matters more.

Commercial boards often demand heavier filings. The Illinois PTAB requires an income and expense schedule for income-producing property. New York City's Tax Commission requires a Request for Review with supporting financials for Class 2 and Class 4 properties. ^[5]

For commercial owners juggling multiple payment methods and jurisdictions, keeping deadlines straight across a portfolio is its own headache. see also: [Online tax payment for property]

St. Louis area owners, note this: Missouri's protest process for personal property runs on a slightly different track than real estate. see also: [St. Louis County personal property tax]

A word on contingency firms for commercial property. A well-built written objection backed by an appraisal or income analysis really can match what a contingency firm submits. The firms are not magic. They use the same forms and the same hearing rooms. What they bring is familiarity with specific board members and processes. If your commercial property's savings potential clears roughly $10,000 in annual taxes, paying a real estate attorney or commercial appraiser a flat fee to co-sign your submission is money well spent.

How do you know if your written objection succeeded?

The taxing authority has to notify you of its decision in writing. That takes weeks for an informal review and months for a formal board decision. The notice states the outcome: value upheld, value reduced to [amount], or case continued to a later date.

If your value dropped, confirm the change lands in the official roll before the tax bill goes out. Check your county's online assessment portal. If the reduction is not on your bill, write the assessor immediately, because you may have to request a corrected bill.

Won a reduction but still think the value is too high? Escalate to the next level. Each escalation carries its own deadline, usually 30 to 60 days from the date of the board's written decision. Track that date straight off the decision letter.

Lost outright? You have the same escalation right. Do not assume the board's decision is final. It is the first administrative decision, not the last word.

Santa Clara County homeowners: the Assessment Appeals Board posts hearing schedules and decisions publicly online, so tracking your case there beats waiting on the mail. ^[12] see also: [Santa Clara property tax]

The TaxFightBack appeal kit includes a decision-tracking checklist and an escalation deadline calendar so nothing slips through the gap between levels.

Frequently asked questions

Can I file a written objection by email?

In most jurisdictions, no. Email is not a recognized legal delivery method unless your county's official instructions say otherwise. Use certified mail with return receipt, an in-person drop-off with a stamped copy handed back to you, or the assessor's official online portal. An unconfirmed email to a generic inbox will not protect you if the deadline passes.

What if I missed the objection deadline by a few days?

Your options are narrow but not zero. Check the exact statutory deadline first, because some states define timely as postmarked, not received, which may save you. If the notice was mailed incorrectly or never arrived, some jurisdictions allow a tolling argument. Some states also allow a late protest for clerical error on the assessor's part. A local property tax attorney can tell you fast whether any exception fits.

Do I need a professional appraisal to file a written objection?

No, not at the initial filing stage. A professional appraisal strengthens your case and is worth getting for high-value properties, but most review boards accept owner-assembled comparable sales and property record card errors as enough for a residential objection. If the case climbs to circuit or superior court, a certified appraisal becomes effectively mandatory.

How long does the review process take after I file?

Informal reviews in less-busy counties run four to eight weeks. Formal board hearings in large jurisdictions like Cook County or Los Angeles often take six to eighteen months from filing. New York City's Tax Commission usually schedules hearings within the calendar year of filing. Your tax bill will likely issue before the appeal resolves; pay it to avoid penalties, and the reduction comes back as a refund.

Can a renter or tenant file a written objection?

Generally no. The right to object belongs to the property owner of record. But if a lease makes the tenant responsible for property taxes (triple-net leases in commercial real estate are the common example), the lease may also grant the tenant the right to pursue an appeal. Read the lease. In New York City, owners of certain multi-family buildings must by statute notify residential tenants of the assessment appeal process.

What is the difference between an informal review and a formal board hearing?

An informal review is a one-on-one conversation or written exchange with an assessor's staff appraiser. No sworn testimony, no official record. A formal board hearing is a proceeding before the review board, with sworn testimony, an official record, and a written decision you can appeal further. Informal reviews resolve faster and often deliver adequate reductions without the stress of a hearing room.

Will filing a written objection trigger a higher assessment?

This is a common fear and it almost never happens. In most states the assessor cannot raise your value above the proposed amount as payback for an appeal. Texas Tax Code Section 41.66 specifically bars the ARB from raising a value during a protest hearing beyond the amount on the notice. A few states lack this explicit protection, but punitive reassessments after a legitimate appeal are rare and legally shaky.

Do I have to state my claimed value in the objection letter?

Most jurisdictions require it, and the ones that do not still benefit from it. Stating your claimed value points the review at a specific number instead of leaving it open-ended, which invites a token reduction. Use your comp analysis to anchor the figure. State it as your best estimate of market value, not as a demand.

What happens if the assessor and I can't reach agreement at the informal stage?

Your case moves to a formal hearing before the review board. You get a scheduled hearing date in writing. At the hearing you present your evidence, the assessor's office presents theirs, and the board decides. If you disagree with the board, you can climb to the next administrative level or to court, each within its own deadline.

Can I withdraw my written objection after filing it?

Yes. Most jurisdictions allow withdrawal any time before the hearing decision is issued, usually in writing. You would withdraw if you reach a satisfactory informal settlement, or if you learn your original assessment was actually correct. Withdrawal usually closes the case with no penalties. Confirm the procedure with your specific county.

What if the assessor made a clerical error on my property record card?

This is one of the strongest grounds for an objection. Request your property record card, pin down the specific error (wrong square footage, wrong year built, wrong number of bathrooms), document the correct information with photographs and measurements, and attach all of it. Clerical errors often resolve quickly at the informal review stage without a formal hearing.

Is a written objection the same as an appeal in every state?

Not technically. Some states treat the written objection as a prerequisite to an appeal, meaning you file the objection first, attend the informal review, then file a separate formal appeal if unsatisfied. Others treat the objection and the appeal as the same filing. Read your assessment notice; it names the specific form and office for the first-level filing in your jurisdiction.

What should I do if I receive two notices for the same property?

File a written objection for each notice showing a value you dispute. In some jurisdictions a supplemental reassessment triggers a separate notice with its own deadline, independent of the annual cycle. Treat each notice as its own case with its own clock. Call the assessor's office to ask why two notices issued; the answer may reveal an error that helps your case.

Can I appeal again next year if my objection fails this year?

Yes, unless the board's decision contained language specifically barring future appeals on the same grounds, which is uncommon. Each tax year generates a new assessment and a new right to object. If you lose this year, gather better evidence, refine your comp analysis, and file again. Repeated filings also signal to the assessor that you are watching the value closely.

Sources

1. National Conference of State Legislatures, Property Tax Assessment Overview: Once the assessment roll closes and the tax bill issues, most jurisdictions shift to a different appeals process that may require payment under protest
2. Texas Comptroller of Public Accounts, Texas Property Tax Code Chapter 41: Texas Tax Code Section 41.41 lists grounds for protest; Section 41.66 prohibits the ARB from raising value beyond the notice amount; the protest deadline is 30 days from the notice or May 15, whichever is later
3. Illinois Property Tax Appeal Board, PTAB Filing Information: Illinois PTAB requires taxpayers to specify grounds (overvaluation or equity); residential filing fee is $60 and commercial is $150; the first-level appeal goes to the County Board of Review within 30 days of publication
4. New York City Tax Commission, How to Appeal: NYC tentative assessment roll deadlines are March 1 for Class 1 and March 15 for Class 2 and Class 4; Class 2 and 4 commercial appeals require supporting financials
5. California State Board of Equalization, Property Tax: California county assessment appeals run July 2 through November 30; appeals go to the county Assessment Appeals Board, then Superior Court
6. Georgia Department of Revenue, Property Tax Real and Personal Property: Georgia O.C.G.A. Section 48-5-311 establishes a 45-day objection window from the notice date; missing it forfeits appeal rights for that year
7. Lincoln Institute of Land Policy, Significant Features of the Property Tax: Contingency firms in residential appeals typically charge 25 to 50 percent of the first year's tax savings
8. Cook County Assessor's Office, Appeal Process: Cook County accepts online appeals and informal reviews may take several months before a formal hearing is scheduled
9. Santa Clara County Assessor, Assessment Appeals: Santa Clara County Assessment Appeals Board posts hearing schedules and decisions publicly online