County assessor vs. township assessor: who handles your appeal?

Last updated 2026-07-10

Why does it matter which assessor's office you contact?

The office that sets your assessed value and the office that hears your appeal are often two different places, and your tax bill won't tell you that. Call the wrong one and you can get misdirected, blow a filing window, or send evidence into a void.

The confusion makes sense. Your bill lists a single dollar amount and a jurisdiction name. It says nothing about the layered bureaucracy behind it. Take Illinois. Your township assessor sets the initial value, the county Board of Review hears the first-level appeal, the State Property Tax Appeal Board handles what comes after that, and the circuit court sits above all of them ^[1]. Four separate venues. Each has its own form, its own deadline, and its own rules about what evidence it will look at.

California works differently. The County Assessor sets values and the Assessment Appeals Board, a separate county body, hears appeals ^[2]. No township layer anywhere.

Get the office right before you do anything else. Your deadline, your form, and your evidence strategy all hang on it.

What is a township assessor and which states still use them?

A township assessor is a local official, usually elected, who works at the sub-county level in states that still run township government. Townships are geographic slices of counties, often a handful of square miles holding tens of thousands of parcels. The township assessor values every parcel inside those boundaries, applies any local exemptions, and sends the assessment roll up to the county.

About 20 states keep active township governance to some degree, according to the Lincoln Institute of Land Policy's state-by-state property tax database ^[3]. The list where township assessors still set residential values for tax purposes is shorter. The clearest examples: Illinois, New Jersey, Michigan, Indiana, Pennsylvania (in some counties), Minnesota (in some jurisdictions), and Ohio (where the county auditor fills the assessor role but townships keep some administrative functions).

State	Who sets the value	Who hears the first appeal
Illinois	Township assessor (in counties under 3M population)	County Board of Review
New Jersey	Municipal/township assessor	County Board of Taxation
Michigan	Local township/city assessor	Michigan Tax Tribunal or local Board of Review
Indiana	Township assessor (larger townships) or county	County Property Tax Assessment Board of Appeals (PTABOA)
Pennsylvania	County assessment office (townships rarely assess directly)	County Board of Assessment Appeals
California	County Assessor	County Assessment Appeals Board
Texas	Central Appraisal District (county-level)	Appraisal Review Board
Florida	County Property Appraiser	Value Adjustment Board
Georgia	County Board of Tax Assessors	County Board of Equalization
New York (outside NYC)	Town/city assessor	County Board of Assessment Review

New York mirrors the Illinois confusion. Your town or city assessor sets the value, but you file your grievance on Grievance Day with the local Board of Assessment Review, not with any county office ^[4]. Miss the specific Grievance Day, which varies by municipality, and you're usually locked out until next year.

For Cook County, Illinois, the structure runs even deeper. Cook County has 38 townships, each with its own elected assessor. The Cook County Assessor then reviews and can revise those values before they reach the Board of Review.

What is a county assessor and what do they do differently?

In most U.S. states, the county is the primary assessment unit. One County Assessor (also called County Appraiser, County Property Appraiser, or County Auditor, depending on the state) values every parcel in the county. Nothing sits between you and the county.

This is the simpler setup for homeowners. One office for questions. One set of forms. One deadline. California, Texas, Florida, Georgia, and most Southern and Western states run this county-centric model ^[2][5].

Texas calls the entity a Central Appraisal District (CAD). It's technically independent of county government but still county-level in scope. The Appraisal Review Board (ARB), a separate panel, hears every protest ^[5]. For Bexar County homeowners, that means filing with the Bexar Appraisal District, not any township office.

In Los Angeles County, the Office of the Assessor handles valuations and the Assessment Appeals Board hears disputes. One county umbrella, two distinct offices under it.

For Gwinnett County, Georgia, the Board of Tax Assessors sets values and the Board of Equalization hears appeals. Same pattern. One county, two offices.

Who actually hears my appeal: the assessor, a board, or someone else?

This is the question most homeowners get wrong. In almost every state, the person or office that assessed your property does not hear your appeal. Appeals go to a separate body.

Here is how the tiers usually stack.

1. Informal review. Many jurisdictions let you call or email the assessor's office and ask for an informal review before you file a formal appeal. No forms, no filing fee, sometimes resolved in two weeks. Always try this first.

2. First formal appeal. This goes to a board, not the assessor. In Illinois it's the County Board of Review ^[1]. In New Jersey it's the County Board of Taxation ^[6]. In Michigan it's the local Board of Review or the Michigan Tax Tribunal for certain property types ^[7]. In Texas it's the Appraisal Review Board ^[5]. In California it's the Assessment Appeals Board ^[2]. In New York it's the Board of Assessment Review ^[4].

3. State-level or court appeal. If the first board rules against you, most states let you go further, to a state body (Illinois Property Tax Appeal Board, Michigan Tax Tribunal for full hearings, New Jersey Tax Court) or straight to circuit or district court.

The assessor's office is almost always the respondent at your hearing, not the decision-maker. That shift in mindset matters. You're not asking the assessor to change their mind. You're presenting evidence to an independent board that can override the assessor.

Want to build that evidence package yourself? The TaxFightBack DIY appeal kit walks you through comparable sales analysis and the specific forms for your state, and you keep 100% of any savings.

How do I find out which office assessed my property?

Start with your assessment notice. Every jurisdiction has to send one, usually once a year or whenever the value changes, and it must name the assessing authority. Look for a letterhead, a return address, or a name like "Office of the Township Assessor" versus "County Assessor's Office."

If you only have a tax bill and no assessment notice, the bill usually lists the assessing body separately from the tax collector. The county treasurer or tax collector sends the bill. The assessor sets the value. Different offices.

Your state's department of revenue or taxation almost always keeps a directory of local assessors. A few reliable starting points:

• Illinois Department of Revenue, Property Tax page ^[1]
• New Jersey Division of Taxation, Local Property Tax section ^[6]
• Michigan Department of Treasury, Property Tax page ^[7]
• California State Board of Equalization, Assessment Appeals page ^[2]
• Texas Comptroller, Property Tax Assistance section ^[5]

In states without township assessors, a search for "[your county name] assessor" gets you there in under a minute. In township states, you need your township name, which appears on your deed and your assessment notice. Montgomery County, Maryland homeowners deal directly with the Maryland State Department of Assessments and Taxation, not a county or township office, which is its own quirk ^[12].

What are the appeal deadlines and how do they differ by office type?

Deadlines are the most unforgiving part of a property tax appeal. Miss one by a day and you usually wait until next year. The deadline varies more than by state but sometimes by the individual township or municipality.

State	Appeal filed with	Typical first-level deadline
Illinois	County Board of Review	Within 30 days of assessment publication (varies by county) [1]
New Jersey	County Board of Taxation	April 1 (or May 1 in revaluation years) [6]
Michigan	Local Board of Review or Tax Tribunal	March 31 for residential (Tax Tribunal); Board of Review meets in March [7]
Indiana	PTABOA	Within 45 days of Form 11 notice [8]
California	County Assessment Appeals Board	July 2 to November 30 for regular appeals [2]
Texas	Appraisal Review Board	May 15 or 30 days after notice, whichever is later [5]
Florida	Value Adjustment Board	September 18 (25 days after TRIM notice mailing) [9]
New York	Board of Assessment Review	Grievance Day: 4th Tuesday in May in most municipalities [4]
Georgia	County Board of Equalization	Within 45 days of assessment notice [10]

A few things worth knowing about these deadlines. In Illinois, the Cook County Board of Review runs township-by-township appeal windows, so your deadline depends on which township your property sits in, not one countywide date ^[1]. In New Jersey, the April 1 deadline is firm, but you also have to pay any assessed taxes to avoid waiving your appeal rights under N.J.S.A. 54:3-27 ^[6].

For Hennepin County, Minnesota, the Local Board of Appeal and Equalization meets in April and May, and you must appear in person or submit written comments. That requirement catches people off guard every year.

The safest rule: find your deadline the day the assessment notice lands, put it on your calendar, and back it up 30 days to leave time for evidence.

Does the township assessor or county assessor have more power to fix an error?

It depends on the state, but the township assessor usually has limited authority to change an assessment once the roll is certified. They can correct clerical errors (wrong square footage, wrong lot size, wrong property class) at almost any time. They generally cannot grant a reduction based on comparable sales after the appeal window closes.

The county board is where the real correction power sits for valuation disputes. In Illinois, the Board of Review can cut an assessment by any amount the evidence supports, including evidence the township assessor waved off ^[1]. In New Jersey, the County Board of Taxation can raise, lower, or sustain an assessment, and so can the Tax Court on further appeal ^[6].

So if a township assessor tells you informally that they "can't do anything" about your value, that's often literally true inside their own office. It does not mean your appeal is dead. It means you go up a level.

In county-assessor states, the assessor's office often runs an internal review before you reach the independent board. In Santa Clara County, the Assessor's office has an informal assessment review process that sits apart from the formal Assessment Appeals Board hearing.

What evidence do I bring to a township board of review vs. a county appeals board?

The evidence rules are mostly the same no matter which board hears your case. You have to show the assessor's estimate of your market value is too high. The two strongest tools are comparable sales (recent arm's-length sales of similar nearby homes) and an independent appraisal.

Comps should be within the last 12 months if you can manage it, within a quarter mile or the same neighborhood, and close in size, age, condition, and features. Three to five solid comps beat a stack of 20 weak ones. Pull the data from your county's property records portal, Zillow's sold listings, or Realtor.com's sold section, then check square footage and sale date against the public record.

An independent appraisal from a state-licensed appraiser is the strongest single piece of evidence. It typically runs $300 to $700 for a residential property (that range comes from standard appraisal industry pricing; no single authoritative national source tracks it precisely). At a Board of Review hearing in Illinois, an appraisal isn't required but it carries real weight. At the Illinois Property Tax Appeal Board and in New Jersey Tax Court, an appraisal is close to expected for any serious reduction.

Condition evidence matters too. Photos of needed repairs, contractor estimates for foundation or roof work, and documentation of any stigma (proximity to a highway, flooding history) can all support a below-market value argument.

One thing that flops: pointing at your neighbor's lower assessment. Equity arguments ("the house next door is assessed less") are legally valid in some states but rarely persuade on their own. Boards want market value evidence, not fairness complaints.

For Bibb County, Georgia and other smaller counties, informal hearings with the Board of Equalization tend to be conversational and comp-focused. A one-page comp grid can carry the day.

Can the assessor raise my value if I appeal?

Yes. In some states the board can raise your assessment if the evidence at the hearing supports a higher value. Some jurisdictions call it a cross-appeal or counter-appeal, and it's a real risk to understand before you file.

In New Jersey, the county board and Tax Court can raise your assessment if the assessor shows your property is undervalued ^[6]. That's why some tax attorneys tell clients with assessments close to (or below) market value to skip the formal appeal.

In Illinois, the Board of Review can raise your assessment, but only if the township assessor files a complaint asking for an increase ^[1]. They rarely do that in response to a homeowner appeal, though it isn't impossible.

In Texas, the ARB can't push your value above the level the appraisal district certified without a separate process ^[5].

In California, the Assessment Appeals Board can raise your assessment if it finds the property undervalued, which is why the State Board of Equalization tells homeowners to weigh that possibility before filing ^[2].

Here's the practical read. If you think your property is assessed at or below its genuine market value, don't file a formal appeal. If you think it's assessed at least 5% to 10% above market value, the risk of an increase is low and the appeal is worth your time.

For St. Louis County owners, Missouri law lets the Board of Equalization move assessments up or down, so size up your real market value honestly before you file.

What if I live in a state where the assessor and the appeals board are in the same office?

In some smaller or rural counties, the staff that processes your appeal forms works in the same building, sometimes the same department, as the people who set your value. That doesn't mean the appeal is rigged. It does mean you should understand how the decision actually gets made.

Board members at a County Board of Review, Board of Equalization, or Assessment Appeals Board are almost always separate from the assessing staff. They may be appointed by county commissioners, elected separately, or drawn from citizen volunteers. Their job is to review the assessor's work, not rubber-stamp it.

If you feel the hearing isn't fair, you have moves. Check your state statute for the board's composition and any conflict-of-interest rules. Escalate to the state-level body (state tax tribunal, state board of equalization, or circuit court). And in egregious cases of systematic overassessment, equal protection claims have occasionally succeeded, though they take legal counsel and years of litigation.

For most homeowners, the county or state board gives a genuinely independent review, and the numbers back that up. A Lincoln Institute of Land Policy study of Cook County, Illinois found that roughly 60% to 70% of residential appeals before the Board of Review produced some reduction ^[11].

How to figure out your exact appeal path in five steps

Here's the shortest route from confusion to a filed appeal.

Step 1. Find your assessment notice. The assessing authority is named on it. If you don't have it, request it from the county or township assessor office listed on your tax bill.

Step 2. Identify your state's appeal structure. Your state department of revenue site has a property tax appeals page. Trace the chain: assessor, first-level board, state body, court.

Step 3. Find your exact deadline. In township states, confirm the specific township or municipality window, more than the countywide calendar. A phone call to the county board of review office takes three minutes and confirms the date.

Step 4. Request the informal review first. Call the assessor's office, say you think the value is too high, and ask if there's an informal review process. Get any offer in writing before you withdraw a formal appeal.

Step 5. File the formal appeal with the correct board before the deadline, even if the informal review is still open. You can withdraw later. You cannot file late.

The TaxFightBack DIY appeal kit includes state-specific filing instructions, a comparable sales grid template, and the exact forms for the largest counties in the country, so you can run all five steps without handing a firm 30% to 50% of your savings.

Frequently asked questions

If I contact the township assessor to appeal, will they send me to the right place?

Sometimes, but not reliably. Township assessor offices vary widely in how helpful they are about the appeal process. Many will point you to the County Board of Review, which is correct. Some will just tell you the deadline has passed or that they can't help, which may or may not be accurate. Always verify the appeal venue and deadline directly with the county board of review office.

Does New York use township or county assessors?

New York uses town and city assessors outside New York City. Your town assessor sets the value, and you file your grievance on the municipality's annual Grievance Day, typically the fourth Tuesday in May, with the local Board of Assessment Review. The county does not hear the first-level appeal. If the board denies your grievance, you can file a Small Claims Assessment Review (SCAR) petition in state court for residential properties.

Can I appeal to both the township assessor and the county board at the same time?

Not exactly. You file the formal appeal with the county-level board, not the township assessor. The township assessor is a party to that proceeding, essentially the respondent. You can pursue an informal review with the township assessor at the same time, but the formal filing goes to the board. Don't delay the formal filing waiting for the informal process to resolve; informal reviews rarely produce written offers quickly.

What is the difference between a Board of Review, a Board of Equalization, and an Appraisal Review Board?

Different states use different names for the same basic function: a body that hears assessment appeals and can override the assessor's value. Board of Review is common in Illinois and Michigan. Board of Equalization appears in California, Georgia, and others. Appraisal Review Board is the Texas term. Board of Assessment Review is the New York term. They all do the same job. Check your state's specific body name before filing so you submit the right form to the right address.

How long does an appeal take from filing to decision?

First-level board decisions typically take 30 to 180 days after the hearing. Illinois County Boards of Review often take two to six months to schedule and decide cases. New Jersey County Board hearings can take a year or more given high volumes. California Assessment Appeals Boards have a two-year statutory deadline to hear cases from the filing date. State-level appeals or tax court cases can take several additional years.

Do I need a lawyer or a tax agent to appeal?

Not for a residential first-level board appeal in most states. Homeowners represent themselves successfully every day at county Boards of Review, Boards of Equalization, and Appraisal Review Boards. You need solid comps, a clear argument, and knowledge of the rules. A lawyer becomes worth it if you're appealing a high-value property, going to state tax court, or the facts are legally complex. Contingency firms that take 30 to 50 percent of savings are often not necessary for residential appeals.

What happens to my tax bill while my appeal is pending?

In most states, you have to pay the taxes as billed while your appeal is pending. If you win, you get a refund or a credit against future taxes, often with interest. Withholding payment while appealing can trigger penalties and can even cost you your appeal rights in states that require taxes to be current. New Jersey explicitly requires payment of assessed taxes as a condition of appeal under N.J.S.A. 54:3-27.

My county mailed the assessment notice to the wrong address. Can I still appeal?

Possibly, but it depends on the state. Most states hold that the deadline runs from the date the notice was mailed to your address of record, not from when you actually got it. If your address of record was wrong, document that immediately and contact both the assessor's office and the board of review. Some states allow late appeals when the failure to receive notice was the assessor's error, but you need to act fast and get legal advice specific to your state.

Is the informal review with the assessor binding, or can the board still raise my value?

An informal review agreement is generally not binding until it's formally ratified. If you accept an informal reduction but the board separately initiates a review or the assessor files a counter-complaint (rare), the board could technically set a different value. Always get any informal reduction in writing and understand whether filing or not filing a formal appeal affects your rights in your specific state.

How does this work in Illinois specifically, with so many townships?

In Illinois counties under 3 million residents, the township assessor sets the initial value. You can request an informal review with them. The formal first-level appeal goes to the County Board of Review, with a deadline tied to when your township's assessment is published each year. After the Board of Review, you can escalate to the Illinois Property Tax Appeal Board or circuit court. Cook County, over 3 million residents, uses the Cook County Assessor to set original values rather than township assessors.

What if I own property in multiple counties or states?

You appeal each property separately in the jurisdiction where it sits. There is no cross-county or cross-state appeal mechanism. Each county has its own assessor or township system, its own board, and its own deadline. If you own investment properties in several counties, track the assessment notice for each one and calendar each deadline separately. Missing one does not affect the others.

Can a commercial property owner use the same appeal process as a homeowner?

Usually yes, the same board hears both residential and commercial appeals, but the evidence bar is higher for commercial property. Income-approach valuation (capitalizing net operating income) is typically required alongside or instead of comparable sales for income-producing properties. Some states have separate rules or separate tracks for commercial appeals above certain value thresholds. LA County and NYC both have specific commercial assessment procedures worth reviewing carefully.

Does filing an appeal affect my homestead or other exemptions?

No. An appeal of your assessed value is a separate process from applying for exemptions like homestead, senior, or veterans exemptions. Both can run at the same time. An exemption reduces the taxable portion of your assessed value; an appeal reduces the assessed value itself. If you qualify for an exemption you haven't claimed, applying for it is often faster and easier than a full appeal and should be pursued alongside it.

Sources

1. Illinois Department of Revenue, Property Tax page: In Illinois, the township assessor sets values in counties under 3 million population; the County Board of Review hears first-level appeals; further appeals go to the Property Tax Appeal Board or circuit court.
2. California State Board of Equalization, Property Taxes section: In California, the County Assessor sets values and the Assessment Appeals Board hears appeals; the AAB can raise an assessment if evidence supports a higher value; the formal appeal window is July 2 to November 30 for the regular roll.
3. Lincoln Institute of Land Policy, Significant Features of the Property Tax (state-by-state database): Approximately 20 states retain active township governance; states with township-level assessors setting residential values include Illinois, New Jersey, Michigan, Indiana, and New York.
4. New York State Department of Taxation and Finance, Property Tax section: In New York, town or city assessors set values; homeowners file grievances on Grievance Day (typically the fourth Tuesday in May) with the local Board of Assessment Review; Grievance Day dates vary by municipality.
5. Texas Comptroller of Public Accounts, Property Tax Assistance section: In Texas, the Appraisal Review Board hears protests; the deadline is May 15 or 30 days after the appraisal notice, whichever is later; the ARB cannot increase a value above the certified district level without a separate process.
6. New Jersey Division of Taxation, Local Property Tax section: New Jersey appeal deadline is April 1 (May 1 in revaluation years); the County Board of Taxation hears first-level appeals; the board can raise, lower, or sustain an assessment; N.J.S.A. 54:3-27 requires taxes to be paid as a condition of appeal.
7. Michigan Department of Treasury, Property Tax page: Michigan local township or city assessors set values; the local Board of Review meets in March; the Michigan Tax Tribunal deadline is March 31 for residential property; taxpayers may bypass the local board and go directly to the Tax Tribunal.
8. Indiana Department of Local Government Finance, Property Tax page: Indiana homeowners have 45 days from receipt of Form 11 (assessment notice) to file an appeal with the county Property Tax Assessment Board of Appeals (PTABOA).
9. Florida Department of Revenue, Property Tax Oversight section: Florida Value Adjustment Board petition deadline is 25 days after the mailing of the TRIM (Truth in Millage) notice, typically around September 18.
10. Georgia Department of Revenue, Property Tax section: Georgia homeowners have 45 days from the date of the assessment notice to appeal to the County Board of Equalization.
11. Lincoln Institute of Land Policy, research on Cook County property tax appeals: A Lincoln Institute study found roughly 60 to 70 percent of residential appeals before the Cook County Board of Review resulted in some reduction in assessed value.
12. Maryland State Department of Assessments and Taxation, Homeowners section: In Maryland, the State Department of Assessments and Taxation, not a county or township office, handles assessments; appeals go to the Property Tax Assessment Appeal Board at the county level.