I Just Got My Property Tax Assessment Notice -- Now What?

Your assessment notice just arrived and the number looks wrong. Here's exactly what to do in the first 48 hours to protect your right to appeal.

PropertyTaxFight Team
8 min read
In This Article

I Just Got My Property Tax Assessment Notice - Now What?

TL;DR

Your assessment notice just arrived and the number looks wrong. Do not panic, but do not ignore it either. You have a limited window, usually 30 to 90 days, to file a formal appeal. In the first 48 hours: verify the property details on the notice, check comparable sales in your neighborhood, and mark the appeal deadline on your calendar. About 30-50% of homeowners who appeal get a reduction. The worst thing you can do right now is set it aside and forget about it.

First Things First: Read the Entire Notice

Most homeowners glance at the assessed value, feel a spike of frustration, and toss the envelope on the kitchen counter. That is a mistake. Your assessment notice contains several pieces of critical information beyond the dollar figure.

Here is what to look for:

  • Property details: Square footage, lot size, number of bedrooms and bathrooms, year built, and property type. Errors here are more common than you think.
  • Assessed value vs. market value: Some states list both. Others list only the assessed value, which may be a percentage of market value.
  • Previous year's value: This shows you how much your assessment changed. A big jump deserves scrutiny.
  • Appeal deadline: This is the most important date on the notice. Miss it and you are stuck with the number for another year.
  • Appeal instructions: Most notices explain exactly how to file. Some include a form you can fill out and return.

Check for Factual Errors

Before you even think about whether the value is fair, check whether the assessor's data about your property is accurate. This is where many successful appeals begin.

Common errors include:

Error TypeHow It Inflates Your AssessmentHow to Verify
Wrong square footageMore square feet = higher valueCompare to your home's actual measurements or appraisal
Extra bedrooms or bathroomsMore rooms = higher valueCount your actual rooms
Non-existent featuresPool, finished basement, or fireplace you don't haveWalk through your home and compare to the record
Wrong lot sizeBigger lot = higher land valueCheck your deed or survey
Incorrect year builtNewer homes are valued higherCheck your deed or building records

If you find even one factual error, you already have grounds for an appeal. Assessors are usually willing to correct data mistakes quickly, sometimes without a formal hearing.

Compare Your Assessment to Similar Homes

The next step is checking whether your assessed value is in line with comparable properties in your area. This is the core of most successful appeals.

Look for homes that are:

  • Within a half mile of your home (closer is better)
  • Similar in size, age, and condition
  • Sold within the last 6-12 months

If comparable homes sold for less than your assessed value, or if similar homes in your neighborhood are assessed at lower values, you have a strong case for a reduction.

You can find comparable sales through your county assessor's website, real estate sites like Zillow or Redfin, or through a tool like our property tax analyzer that pulls comps automatically and formats them for your appeal.

Your 48-Hour Action Plan

Time matters here. Your appeal deadline may be just 30 days away, and procrastination is the number one reason homeowners miss their chance to appeal. Here is what to do in the first two days after receiving your notice:

Day 1: Gather and Review

  1. Read the entire assessment notice and note the appeal deadline.
  2. Check every property detail against reality. Note any errors.
  3. Pull up your county assessor's website and look at your property record card.
  4. Look at assessed values of 3-5 comparable homes nearby.

Day 2: Decide and Act

  1. If you found errors or the value seems too high compared to comps, decide to appeal.
  2. Mark the appeal deadline on your calendar with a reminder one week before.
  3. Download or request the appeal form from your county.
  4. Start gathering evidence: recent comparable sales, photos of property condition issues, and any independent appraisals you have.

What Counts as a "Too High" Assessment

Not every increase is worth fighting. If your home's assessed value went up 3% and home prices in your area went up 5%, the assessor may actually be undervaluing your home. You want to appeal when:

  • Your assessed value is higher than what your home would realistically sell for
  • Your assessment increased significantly more than comparable homes nearby
  • The assessor has incorrect information about your property
  • Your home has condition issues that reduce its value (structural problems, outdated systems, needed repairs)
  • Your neighborhood has negative factors the assessor may not have accounted for (noise, traffic, flooding)

A good rule of thumb: if your assessment is more than 5-10% above what you believe your home would sell for, an appeal is worth your time.

The Informal Review: Your First Option

Most jurisdictions offer an informal review process before the formal appeal. This is a conversation with someone at the assessor's office where you present your concerns. It is less intimidating than a hearing and resolves many disputes quickly.

Benefits of starting with an informal review:

  • No formal paperwork required in most cases
  • Errors can be corrected on the spot
  • The assessor may agree to reduce your value without a hearing
  • You learn what evidence the assessor used, which helps if you need to file a formal appeal

Important: an informal review usually does not extend your formal appeal deadline. If the informal process does not resolve your issue, you still need to file your formal appeal on time.

Filing the Formal Appeal

If the informal review does not get you the result you want, or if you prefer to go straight to the formal process, here is what a typical appeal involves:

  1. File the appeal form before the deadline. Include your name, property address, parcel number, and the reason for your appeal.
  2. State your opinion of value. Most forms ask what you believe your property is worth. Base this on comparable sales data, not wishful thinking.
  3. Gather your evidence. Comparable sales, photos, repair estimates, and independent appraisals all strengthen your case.
  4. Attend the hearing. Most hearings are brief, 10-20 minutes. You present your evidence, the assessor presents theirs, and the review board decides.

For a detailed walkthrough, see our guide on the property tax appeal process.

What Evidence Do You Need?

The strongest appeal evidence includes:

  • Comparable sales: 3-5 recent sales of similar homes that sold for less than your assessed value
  • Assessment comparisons: Neighbors' assessed values that are lower than yours for similar properties
  • Photos: Document any condition issues, deferred maintenance, or negative features
  • Repair estimates: Written quotes for needed repairs that affect your home's value
  • Independent appraisal: If you had one done for a refinance or purchase, it can support your case

Our evidence packet builder pulls comparable sales, formats them for your county's requirements, and generates a complete appeal-ready packet for $79. It saves hours of research and gives you the same data professional tax consultants use.

Common Mistakes to Avoid

Missing the Deadline

This is the biggest one. Once the appeal deadline passes, you are locked in until next year. Put the date in your phone right now.

Arguing About Tax Rates

Your appeal is about your property's assessed value, not the tax rate. The review board cannot change the tax rate. Focus on proving your home is worth less than the assessor says.

Getting Emotional

The review board hears dozens of cases. Stick to facts and data. "My taxes are too high" is not an argument. "My home is assessed at $350,000 but three comparable homes sold for $310,000-$325,000" is an argument.

Not Bringing Evidence

Showing up empty-handed and saying "I think my value is too high" will not work. Bring printed copies of your comparable sales, photos, and any other supporting documents.

What If You Just Moved In?

If you recently bought your home and the new assessment is higher than what you paid, you have a strong case. Your purchase price is considered one of the best indicators of market value, especially if the sale was an arm's-length transaction (not between family members or in a distressed situation).

Bring your closing documents showing the sale price, and make sure the sale was recent enough to be relevant to the assessment date.

What If You Cannot Attend the Hearing?

Most jurisdictions allow you to submit your evidence in writing without attending in person. Some allow phone or video hearings. Check your county's rules. If you must attend, many review boards schedule hearings in the evenings to accommodate working homeowners.

Frequently Asked Questions

Can my assessment go up if I appeal?

In most states, your assessment cannot increase as a result of your appeal. But check your state's rules. A few jurisdictions do allow the review board to adjust your value in either direction.

Do I need a lawyer to appeal?

No. The vast majority of residential property tax appeals are handled by homeowners themselves. The process is designed to be accessible without legal representation. A professional consultant can help if your case is complex, but most straightforward appeals do not require one.

How much can I save?

The average successful appeal reduces the assessed value by 10-15%. On a $400,000 home with a 1.5% tax rate, a 10% reduction saves about $600 per year. That savings compounds every year until the next reassessment.

What if I miss the deadline?

You will have to wait until next year's assessment notice to appeal. Some states allow late appeals under limited circumstances (like a clerical error by the assessor), but do not count on it.

Does appealing affect my ability to sell my home?

No. Appealing your assessment has no negative impact on your home's market value or your ability to sell. Buyers look at the sale price, not the assessed value.

Your Deadline May Be 30 Days Away

Every day you wait is a day closer to missing your chance to appeal. PropertyTaxFight builds your complete evidence packet with comparable sales, assessment analysis, and appeal-ready documents in minutes. One-time $79 fee. No recurring charges. Start your appeal now before the deadline passes.

Disclaimer: PropertyTaxFight is an informational tool for property tax appeal preparation. We do not provide legal, tax, or appraisal advice. Results are not guaranteed.

PropertyTaxFight Team

PropertyTaxFight provides expert guidance and tools to help you succeed. Our content is reviewed for accuracy and kept up to date.

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