Should I Protest My Property Taxes If My Value Went Down?

Yes, you should still consider protesting your property taxes even if your assessed value dropped. A lower number on your notice doesn't mean the county got it right. Your assessed value could still exceed what your home would actually sell for, miss condition issues the assessor never saw, or overlook exemptions you qualify for.

Bottom line: Protesting makes sense even after a decrease in value. Your assessed value — what the county believes your home would sell for — may still be higher than true market value. 

County assessors use broad statistical models that can't account for your home's specific condition, recent sales on your street, or exemptions you qualify for. In states like Texas, Florida, and California, your value cannot increase as a result of your own appeal, so there's essentially no financial downside to filing.

This guide covers when protesting still makes sense, how to evaluate whether your assessment is accurate, and the steps to file if you decide to move forward.

Should You Protest Property Taxes If Your Value Went Down

Yes, protesting your property taxes can still make sense even if your assessed value dropped. A decrease doesn't automatically mean your property is fairly valued.

Here's the key distinction: 

• Assessed value is the county's estimate of what your home would sell for on the open market. Note, it’s often a percentage of the assessed value.

• Market value is what buyers are actually paying for comparable homes right now.

These two numbers are supposed to move together, but they often don't, especially after fast-moving market shifts or when property-specific issues go undetected.

Even after a reduction, your assessed value could still exceed true market value by thousands of dollars.

• Your value may still exceed market value: The county's decrease might not fully reflect how much your local market actually declined.

• Property-specific issues often go overlooked: Assessors typically don't catch deferred maintenance, outdated layouts, or other factors that reduce your home's value.

• Exemptions may apply: You could qualify for homestead, senior, or other exemptions that reduce your taxable value further.

• In most states, there's no risk: Your assessed value typically cannot increase as a result of your own appeal.

Why Assessed Value Often Diverges From Market Value

How Mass Appraisal Works

Counties don't send an appraiser to walk through every home. Instead, they use mass appraisal, a method that values thousands of properties at once using statistical models, recent sales data, and property characteristics pulled from records.

The result is an estimate of what a typical home like yours might be worth. But "typical" doesn't account for your specific situation. If your kitchen hasn't been updated since 1985 or your foundation has cracks, the county's model won't know that.

Market Conditions Change Faster Than Assessments

Assessment dates often lag behind real-time market shifts by several months. If your local market declined quickly due to rising interest rates or shifting buyer demand, the county's valuation may not reflect current conditions.

Even a decreased assessment can be outdated if it's based on sales data from six months ago. Markets move fast, and assessments don't always keep up.

Property-Specific Factors Often Get Missed

Mass appraisal can't capture everything. Assessors typically don't see inside your home, so they miss details that affect value:

• Deferred maintenance or needed repairs

• Functional obsolescence, such as small rooms or awkward layouts

• External factors such as traffic noise, power lines, or flood risk

• Incorrect property records showing wrong square footage or extra bathrooms

You May Qualify for Unclaimed Exemptions

Exemptions reduce your taxable value separately from the assessed value itself. Many homeowners don't realize they qualify for homestead, senior, or disability exemptions, or they simply forget to apply after purchasing their home.

In Texas, for example, the general homestead exemption removes $100,000 from your home's assessed value for school district taxes. That's a significant reduction that exists independently of any protest.

Equal and Uniform Arguments May Support a Further Reduction

In Texas, you can argue that your property is valued higher than similar homes in your area, even if your assessment reflects fair market value. This is called an equal and uniform protest.

The principle is straightforward: if comparable properties are assessed at lower per-square-foot values, your assessment may be inequitable. You can use this argument to achieve a reduction even when market value alone doesn't support one.

Risks of Protesting Property Taxes

States Where Your Value Can Increase After an Appeal

In a few states, filing an appeal opens your entire assessment to review. If the assessor discovers errors that undervalued your property, your assessment could actually increase.

Georgia and Washington are two states where this risk exists. Before filing in these states, it's worth reviewing comparable sales data carefully to confirm your property is genuinely overassessed.

Note: Ownwell reviews market data before filing and may decline to file if the risk of an increase outweighs potential savings.

States Where Your Value Cannot Increase After an Appeal

In most states, your assessed value cannot increase as a result of your own protest. The table below reflects states where Ownwell currently operates — rules vary in states not listed.

If you live in a state where your value is protected, there's essentially no downside to filing.

How to Know If Your Assessment Is Still Too High

Compare Your Assessment to Recent Sales

Start by looking at comparable sales in your area. These are homes similar to yours in size, age, condition, and location that sold within the past six to twelve months.

If those homes sold for less than your assessed value, you likely have grounds for a protest. Most county appraisal district websites list recent sales, or you can find them through real estate sites.

Review Your Property Record for Errors

Your county maintains a property record card with details about your home. Errors in this record can inflate your assessment. Check for:

• Incorrect square footage

• Wrong number of bedrooms or bathrooms

• Inaccurate lot size

• Missing or incorrect condition notes

Even small errors can add thousands of dollars to your assessed value. Correcting them is often the easiest path to a reduction.

Check If Your Neighborhood Declined More Than Your Assessment

Sometimes, entire neighborhoods experience sharper declines than the county's models capture. If recent sales in your area dropped significantly but your assessment only decreased slightly, the gap represents potential savings.

Exemptions That Could Lower Your Tax Bill Further

Homestead Exemptions

A homestead exemption reduces the taxable value of your primary residence. Eligibility requirements vary by state, but most homeowners who live in their property qualify.

Many homeowners don't realize they qualify or forget to apply after purchasing their home. If you haven't filed for a homestead exemption, that's often the first place to look for savings.

Senior and Disability Exemptions

Most states offer additional exemptions for homeowners over 65 or those with qualifying disabilities. Eligibility criteria vary, but these exemptions can significantly reduce your tax burden.

Some states also freeze your assessed value once you qualify, protecting you from future increases.

Other Common Exemption Types

Beyond homestead and age-related exemptions, you may qualify for:

• Veteran exemptions

• Agricultural exemptions

• Renewable energy exemptions

• Widow or widower exemptions

How to Protest Your Property Taxes

1. Gather Evidence of Overassessment

Strong evidence is the foundation of a successful protest. Collect:

• Comparable sales data showing lower prices for similar homes

• Photos of property condition issues

• Repair estimates or inspection reports

• Corrected property details if your records contain errors

2. File Before the Deadline

Deadlines vary by state and county, often falling shortly after assessment notices are mailed. In Texas, the deadline is typically May 15 or 30 days after you receive your notice, whichever is later.

Missing the deadline forfeits your right to appeal for that tax year. Mark your calendar as soon as you receive your notice.

3. Attend Your Hearing or Send a Qualified Representative

You can attend the hearing yourself or authorize a representative to appear on your behalf. Many property owners find that working with an experienced representative improves their chances of success, since representatives know which arguments work in specific counties.

See how much you could save with Ownwell

Why Working With a Property Tax Expert Can Maximize Savings

Property tax experts understand local rules, have access to comprehensive comparable sales data, and know how to present evidence effectively. They're familiar with the arguments that work in your specific county and can identify opportunities you might miss on your own.

Services like Ownwell operate on a contingency basis, meaning you pay only if they reduce your taxes. This structure makes professional help a low-risk option for homeowners who want to maximize savings without spending hours on research and hearings.

FAQs About Protesting Property Taxes When Your Value Went Down

How often are property tax appeals successful?

Win rates vary significantly by county and by how well supported the appeal is. In Texas, Ownwell's analysis of 17 counties from 2023 to 2025 found win rates ranging from 57% to 89%, depending on location, with most major metro counties coming in above 80%. Property owners who file with strong comparable sales data consistently outperform those who file without evidence.

Does protesting property taxes hurt you?

In most states, no. Texas, California, Florida, and most other states protect homeowners from having their assessed value increase as a result of their own appeal. The main risk exists in Georgia and Washington, where filing opens the full assessment to review. Outside of those states, the downside of filing is minimal — you spend time preparing your case but risk nothing on the valuation itself.

Can my taxes go up if I appeal?

It depends on your state. In Georgia and Washington, an appeal can result in a higher assessment if the county finds errors that undervalued your property. In most other states, including Texas, California, and Florida, your value cannot increase as a result of your own protest. Check your state's rules before filing if you're unsure.

Is protesting property taxes worth it for a small overassessment?

Often yes. A $10,000 reduction in assessed value saves roughly $200–$300 per year depending on your local tax rate — and that reduction carries forward as a lower baseline in future years. In states where your value can't increase from your own appeal, there's no financial risk in trying, which makes even modest overassessments worth challenging.

Can you protest your property taxes every year?

Yes, in most states, you can file a protest annually. Regular protests help maintain a lower assessed value and prevent your taxes from creeping up over time.

What happens if you miss the deadline to protest your property taxes?

Missing the deadline typically means waiting until the next assessment cycle to file. Carefully tracking deadlines ensures you don't lose a year of potential savings.