Margin notes
- In Texas the usual protest deadline is May 15 or 30 days after the appraisal district mails the notice, whichever is later, according to the Texas Comptroller.
- In California, a decline-in-value appeal is filed between July 2 and September 15 or November 30, depending on the county, the State Board of Equalization says.
- Los Angeles County charges a $46 non-refundable filing fee for an assessment appeal, with a hardship waiver available.
Property tax is the one tax where an ordinary homeowner can argue directly with the government about the number and sometimes win. You cannot appeal the tax rate, which is set by local taxing units. You can appeal the value the assessor puts on your home, and since the bill is the rate times that value, a lower value means a lower bill. Unlike federal deductions, the savings arrive whether or not you itemize.
How appeals work in general
Every state has its own procedure, deadlines and forms, set by state law and run by counties or appraisal districts. The broad pattern is similar:
- The assessor or appraisal district values your property as of a fixed date, often January 1.
- You receive a notice of value or see it on your tax bill.
- You have a limited window to file a protest or appeal, usually a few weeks or months.
- Many places offer an informal review with the assessor’s staff before a formal hearing.
- A board hears both sides and decides; further appeals go to a state body or court.
Deadlines are strict. Missing one usually means waiting a year. Look up your own county’s process on the assessor’s or appraisal district’s official website before relying on any general guide, including this one.
Example 1: Texas
The Texas Comptroller describes the right to protest to the appraisal review board (ARB) as one of a taxpayer’s most important rights. The steps:
- Notice. If the appraisal district values your property higher than last year, it must send a notice of appraised value by May 1, or by April 1 for a residence homestead, or as soon as practical after.
- Deadline. The usual protest deadline is May 15 or 30 days after the district mails the notice, whichever is later.
- Filing. Use Form 50-132, Property Owner’s Notice of Protest, though any written notice that identifies the property, the owner and your dissatisfaction is enough.
- Informal conference. You can ask to meet the appraisal district informally to resolve the protest before the hearing.
- Hearing. The ARB must give at least 15 days’ notice. You can appear in person, by phone or video, or by written affidavit.
- Further appeal. If you disagree with the ARB, you can file a petition in state district court within 60 days of receiving its written order, and some cases can go to the State Office of Administrative Hearings or binding arbitration.
The Comptroller is blunt about the hearing: you cannot just say the appraisal district is wrong; you have to prove your case. The ARB can consider general economic factors affecting value, but not your personal financial situation, and neither the ARB nor the district sets your tax rate.
Example 2: California
California’s system is different because of Proposition 13. The assessor sets a base year value when a property is bought or newly built, and the State Board of Equalization explains that if the market value later drops below the assessed value, you can file a decline-in-value appeal for the current year.
- Filing period: July 2 through September 15, or July 2 through November 30, depending on the county’s regular filing period.
- Valuation date: the appeal must be based on the market value as of January 1 of the year you file.
- One year at a time: a decline-in-value appeal applies only to the year filed and does not carry forward; you must file for each year you disagree, and the assessor reviews the value annually once a decline has been found.
- Fee: Los Angeles County charges a $46 non-refundable filing fee, which can be waived for undue financial hardship.
California also offers a homeowners’ exemption: the state constitution provides a $7,000 reduction in the taxable value of a qualifying owner-occupied home, according to the Board of Equalization. It is worth confirming on your bill that it has been applied.
Evidence that works
The Board of Equalization lists three appraisal methods: comparable sales, replacement cost less depreciation, and income. For a home, it says the most reliable evidence is usually comparable sales: recent arm’s-length sales of similar properties nearby. Sales closer to the valuation date carry more weight. The Texas Comptroller suggests gathering similar material:
| Evidence | Why it helps |
|---|---|
| Sales documents: listings, closing statements | Show what buyers actually pay (Texas Comptroller) |
| Photos of your property and of comparables | Show condition and differences (Texas Comptroller) |
| Receipts or estimates for repairs | Document problems that lower value (Texas Comptroller) |
| Surveys, deed records, drawings | Prove size and features (Texas Comptroller) |
| Comparable sales near the valuation date | Most reliable evidence for homes (California BOE) |
Tip: Start with the property record or appraisal district account page and check size, rooms and features. In Texas, a motion to correct a clerical error, multiple appraisals or an ownership error can cover the current year and the five preceding tax years, outside the normal protest window, the Comptroller says.
Exemptions: the other half
Before arguing value, make sure you have every exemption you qualify for, such as homestead, senior or disability exemptions. These are set by each state. They reduce the taxable value without any hearing.
How it connects to your federal return
Property tax you pay can be an itemized deduction on your federal return, within the state and local tax cap described in IRS Topic 503. A lower assessment saves money directly, whether or not you itemize. See Tax Breaks for Homeowners: Mortgage Interest, Property Tax and the Home Sale Exclusion and Standard vs Itemized Deductions: How to Choose for 2026.
Property tax procedures change and vary by county. For a high-value property or a complicated case, a local property tax consultant or attorney can advise; Texas lets you appoint one with Form 50-162.