Property Tax Glossary: The Terms on Your Tax Notice
This glossary names the words on a 2026 property tax notice and flags which ones actually change the bill: assessed value, taxable value, and millage.
August 21, 2026 · 5 min read
Foundational guides to property taxes, assessments, appeals, and exemptions — the educational core of FairAppeal.
83 articles
This glossary names the words on a 2026 property tax notice and flags which ones actually change the bill: assessed value, taxable value, and millage.
August 21, 2026 · 5 min read
Assessed value is the dollar figure the county prints as the home's value for tax. That number, not a listing price, is what millage later multiplies.
August 21, 2026 · 2 min read
A millage rate is the local rate, written as mills, that turns roll value into a yearly tax. One mill is a dollar per thousand dollars of value.
August 21, 2026 · 2 min read
Assessed value is the figure the county prints. Taxable value is the slice the rate may touch after exemptions or caps, and that slice is what gets billed.
August 21, 2026 · 2 min read
Mass appraisal is how a county values a whole roll on one date with shared data and shared methods. A single house is one row in that group run.
August 21, 2026 · 2 min read
An equalization rate is a state or county ratio for a whole municipality, not a lever on one house. New York's explainer is the version people search.
August 21, 2026 · 2 min read
Land value is the county's figure for the lot as if vacant. Improvement value is the figure for the building and other attachments sitting on that lot.
August 21, 2026 · 2 min read
A property record card is the assessor's working file on the parcel, the source the printed notice draws from. IAAO also calls that file an appraisal card.
August 21, 2026 · 2 min read
A board of equalization is the independent panel that hears a formal challenge to assessed value. Some places call the same panel a Board of Revision or BAR.
August 21, 2026 · 2 min read
An informal review is a talk with the assessor. A formal property tax appeal is a later filing heard by a separate body. They are two rooms, not two labels.
August 21, 2026 · 2 min read
A paid, one-house appraisal is not always required to appeal. Counties already value the roll at scale. A bank-style report is a different product.
August 21, 2026 · 2 min read
A property tax appeal asks for a lower printed value, and a higher bill is not the usual result. Some review bodies can still move the number either way.
August 21, 2026 · 2 min read
If you appeal, a file opens on the printed value, a separate body later says whether that number moves, and the bill follows whatever figure remains.
August 21, 2026 · 2 min read
An ad valorem tax is measured by value, and property tax is the household version. A flat fee stays put when the house is worth more; this tax does not.
August 21, 2026 · 2 min read
An assessment ratio is the fraction that turns market value into assessed value on the roll. Assessed equals market times that ratio, before millage runs.
August 21, 2026 · 2 min read
An effective property tax rate is the yearly bill divided by market value. Posted millage multiplies assessed or taxable value, which can be a different base.
August 21, 2026 · 2 min read
A property tax levy is the dollar amount a district raises from the roll, then converts into a rate. Millage is the later math that spreads that ask.
August 21, 2026 · 2 min read
How often properties are reassessed is a local rule: some counties rewrite value every year, others wait two to six years. There is no national cadence.
August 21, 2026 · 2 min read
Assessed value is the tax figure on the roll. Appraised value is a separate opinion written for a lender, a sale, or insurance, and the bill follows assessed.
August 21, 2026 · 2 min read
A special assessment is a charge for a specific project such as a sewer or sidewalk, billed to served parcels. That line is not millage and not a valuation.
August 21, 2026 · 2 min read
A tax roll is the official list of parcels, owners, and values for the tax year. The notice in the mailbox is a printout from one row on that list.
August 21, 2026 · 2 min read
A property tax exemption lowers taxable value by status, such as a homestead. An appeal challenges the printed assessed value. The two levers are not the same.
August 21, 2026 · 2 min read
An assessment cap limits how fast assessed or taxable value may rise year to year. New buyers often lose that hold-down when ownership changes.
August 21, 2026 · 2 min read
Mortgage escrow went up because the tax or insurance estimate went up, so the monthly cushion rose. That line is the same bill collected in twelve pieces.
August 21, 2026 · 2 min read
Protest, appeal, and grievance are state words for a formal challenge to printed assessed value. Texas and Nebraska say protest; New York says grievance.
August 21, 2026 · 2 min read
Fair market value is the assessor's sale-price idea as of the valuation date. Assessed value is the printed tax figure millage later multiplies.
August 21, 2026 · 2 min read
A mill is the rate unit on a property tax bill: one mill equals $1 of tax per $1,000 of taxable value. Millage is the stacked local rate in mills.
August 21, 2026 · 2 min read
CAMA is computer-assisted mass appraisal, the software an assessor uses to value parcels. Mass appraisal is the method; CAMA is the program that runs it.
August 21, 2026 · 2 min read
An assessment notice states the value the county placed on the parcel. A property tax bill is the later invoice for the dollars due after millage.
August 21, 2026 · 2 min read
A parcel number is the county's unique ID for the lot, often labeled APN or PIN. It is an index key on the roll, not a value and not a tax amount.
August 21, 2026 · 2 min read
A property tax lien is a legal claim on the parcel for unpaid tax, so the land stands as security for the debt. It is a claim, not a second appraisal.
August 21, 2026 · 2 min read
Personal property tax is a levy on movable items such as vehicles or business equipment. Real estate tax follows the land and building on the parcel.
August 21, 2026 · 2 min read
The county assessor is the office that sets the taxable value on the roll. The treasurer or tax collector is the later office that mails the bill.
August 21, 2026 · 2 min read
Overassessment is a printed value above what the home would sell for, or above the uniform level on similar parcels. The stake is extra tax every year.
August 21, 2026 · 2 min read
A Zillow estimate is a listing-site guess at sale price. A tax assessment is the official roll figure millage multiplies. The two numbers are not the same.
August 21, 2026 · 2 min read
A valuation date is the snapshot day the county uses to estimate value, often January 1. Sales after that date often do not count for that cycle's figure.
August 21, 2026 · 2 min read
Homeowners can usually file a property tax appeal in each assessment cycle, not only once. A new roll can support a new request. This is not a filing calendar.
August 21, 2026 · 2 min read
A property tax circuit breaker is a credit or refund when tax is high relative to income. That relief is not an electrical-panel breaker, and not an appeal.
August 21, 2026 · 2 min read
A supplemental assessment is a mid-year or after-sale extra bill when value changes. The regular roll often still shows the old figure until next cycle.
August 21, 2026 · 2 min read
The county treasurer collects the property tax and often mails the bill. The assessor is a different office, the one that set the value those mills multiply.
August 21, 2026 · 2 min read
A taxing district is a government unit that can levy property tax on a parcel. City, school, fire, and library mills often stack on the same home.
August 21, 2026 · 2 min read
Use-value assessment taxes farm or timber land on current use, not on development value. The roll treats the acre as working land, not as a future subdivision.
August 21, 2026 · 2 min read
A neighbor can pay less because taxable value, exemptions, or the school and fire mill stack differ. Two houses on one street can still sit in different math.
August 21, 2026 · 2 min read
A sales ratio study checks assessed values against recent sales. Assessors and states use it to measure the roll, not to grade one house in isolation.
August 21, 2026 · 2 min read
A property tax abatement is an official reduction or forgiveness of tax, often a local incentive or an error correction. It is not the same lever as an appeal.
August 21, 2026 · 2 min read
A property tax appeal often takes weeks to months from filing to a decision. Informal talks can be faster. A formal hearing sits on a later local calendar.
August 21, 2026 · 2 min read
A lawyer is usually not required for a property tax appeal. First-level hearings are administrative, and an owner or authorized agent can appear.
August 21, 2026 · 2 min read
A tentative assessment roll is the first public list of values, before it becomes final. Other states echo that draft-then-final idea under different stamps.
August 21, 2026 · 2 min read
A property tax deferral postpones tax that is still owed later, often for seniors. It is not an exemption that subtracts value, and it is not an appeal.
August 21, 2026 · 2 min read
A board of revision hears a formal challenge to assessed value. Ohio uses BOR for the same independent seat other counties call a board of equalization.
August 21, 2026 · 2 min read
Grievance Day is the New York sitting of a board of assessment review, often also the complaint deadline. This page names the day, not a filing kit.
August 21, 2026 · 2 min read
The cost approach estimates value as replacement cost minus depreciation plus land. It is one of the three approaches assessors use, not a DIY appraisal lesson.
August 21, 2026 · 2 min read
The sales comparison approach estimates value from recent similar sales. It is one of the three approaches to value, not a guide to gathering comps.
August 21, 2026 · 2 min read
The income approach converts rent into value, usually net operating income divided by a cap rate. It is more common on rentals than on owner-occupied houses.
August 21, 2026 · 2 min read
A base-year value is the acquisition-year figure later factored assessments start from. A purchase or new construction can reset that starting point.
August 21, 2026 · 2 min read
A change in ownership is a transfer that can reset the assessed value, often to current market. It is a tax event, not a walkthrough of how to record a deed.
August 21, 2026 · 2 min read
A new construction assessment is added value for a new building or major remodel, often mid-cycle. The rest of the parcel can keep its prior starting point.
August 21, 2026 · 2 min read
A county property tax appeal is often free to file, or a small local fee. A representative usually charges only if the tax drops, on contingency.
August 21, 2026 · 2 min read
A tax certiorari is a court-level assessment challenge, common in New York after the local board. It is a later layer, not a how-to for filing a lawsuit.
August 21, 2026 · 2 min read
A clerical error is a data mistake on the assessment, such as wrong square footage or an extra bathroom. It is a fact error, not a fight over market opinion.
August 21, 2026 · 2 min read
An escaped assessment is value that should have been on a prior roll and is billed later. An addition the county missed is the usual example of that catch-up.
August 21, 2026 · 2 min read
Your Omaha mortgage payment can rise with no loan change. A higher Douglas County assessment flows through escrow into the monthly bill. Here is why.
April 23, 2026 · 3 min read
A property tax appeal challenges the assessed value your county placed on your home. When the value drops, your bill drops with it until the next reassessment.
April 19, 2026 · 3 min read
Your property assessment is the value your county placed on your home, and the number behind your tax bill. These estimates routinely miss the mark.
April 19, 2026 · 3 min read
Exemptions lower the portion of your home's value that gets taxed. Most primary-residence owners qualify for at least one, and many never claim it.
April 19, 2026 · 3 min read
TERC is the state board you appeal to after your county board says no. Here is the Douglas County deadline, the filing fee, and what the next level looks like.
February 24, 2026 · 2 min read
The Nebraska Homestead Exemption can lower property taxes for Omaha homeowners 65 and older, and it stacks with a valuation protest. Two separate levers.
February 13, 2026 · 3 min read
Nebraska reassesses every home each year at full market value as of January 1. Here is how that annual cycle works and what it means for your tax bill.
January 9, 2026 · 2 min read

Your property tax bill is probably too high. FairAppeal reviews your property for free and files the appeal only if there is a case to file.
November 18, 2025 · 1 min read

Small homes still produce real property tax appeal savings. See the math side by side for a $350,000 and a $900,000 home at the same rate and reduction.
October 14, 2025 · 2 min read

Property taxes fund local services and equal your assessed value times your local tax rate. Here is how it works and what to do if your assessment looks off.
September 12, 2025 · 5 min read

Your property tax notice hides five fields that decide what you pay and how long you have to push back. Here is what to read before filing it away.
September 9, 2025 · 3 min read

Almost every homeowner qualifies to appeal. Eligibility is not the hurdle. The filing window and whether you have a case are. Here is what counts.
August 5, 2025 · 2 min read

Your property tax bill can rise when the assessor's model values your home higher, when local tax rates climb, or when both happen in the same year.
July 15, 2025 · 2 min read

A property tax bill has a handful of standard pieces: parcel ID, assessed value, exemptions, taxable value, rates, total, and due dates. Here they are.
June 3, 2025 · 2 min read

Your county assessor puts a value on your home each year using a mass-appraisal model. A separate board hears disputes. Here is how that split works.
May 6, 2025 · 2 min read

A homestead exemption reduces the taxable value of a homeowner's primary residence. Rules vary widely by state, and it is separate from an appeal.
April 8, 2025 · 2 min read

FairAppeal is paid only when an appeal lowers your tax. Here is how the contingency fee works and what you owe if there is no tax reduction.
March 10, 2025 · 4 min read

A property tax appeal is a formal request to lower your home's assessed value, not the tax rate. Here is what you are actually challenging and when.
March 4, 2025 · 1 min read

FairAppeal reviews should be read for outcome patterns, not invented averages. Here is what homeowners usually care about after an appeal ends.
February 24, 2025 · 4 min read

Market value is what your home would sell for today. Assessed value is what your county records for tax purposes. They are related but not identical.
February 11, 2025 · 2 min read

FairAppeal is a contingency-based property tax appeal service. Here is how the fee works, who handles the case, and what happens if there is no reduction.
February 10, 2025 · 4 min read

Your annual property tax bill equals your assessed value multiplied by your local effective tax rate. Here is how that simple formula actually works.
January 14, 2025 · 2 min read