Your home appreciates. You're happy about the equity you're building. Then your property tax assessment arrives, and you notice it jumped significantly. Your tax rate is locked in by your municipality, so the only lever you actually have to control your tax burden is challenging the assessed value of your home itself.

The good news is that you're not stuck paying whatever number appears on that notice. Texas law actually gives you the constitutional right to protest your property assessment. Many homeowners in San Angelo simply don't know this option exists, or they assume the county's appraisal is final. It's not. If you believe your property tax assessment is too high, you have the right to appeal it.

Why Assessments Go Up (And How to Fight Back)

Here's what happens: each year your county appraisal district reassesses properties to estimate their current market value. Generally at least once every three years a county appraiser re-evaluates and considers revising a property's estimated market value. When property values in your neighborhood rise, your assessed value typically rises with it. That's not necessarily wrong, but it's not always right either.

The assessor's office uses what's called a mass appraisal approach. They gather sales data and make broad assumptions about neighborhoods. Sometimes they get your specific property's characteristics wrong. Maybe they overestimated your square footage, missed that your roof needs replacing, or didn't account for the fact that your area's market has cooled while their assessment was based on peak prices.

These errors add up. The National Taxpayers Union Foundation estimates that 30 to 60 percent of U.S. residential properties are overassessed, yet fewer than 5 percent of homeowners ever file an appeal. That means hundreds of San Angelo homeowners are likely overpaying, but most never challenge the assessment.

Understanding Your Notice and Timeline

In San Angelo, assessment notices are sent in the spring each year and they'll typically reach your mailbox by the middle of April. This notice is critical because it comes with a deadline.

In most cases, you have until May 15 or 30 days from the appraisal district notice's delivery date — whichever is later. This is not a suggestion. Missing this deadline means you cannot appeal that year's assessment, so you're locked into paying taxes based on whatever value the assessor assigned.

When your notice arrives, take time to review it carefully. Look at the market value and assessed value listed. Does it seem reasonable based on what similar homes in your neighborhood have sold for recently? Has the value jumped significantly from last year? Your appraisal notice should list the values from the current year and the previous one. Compare these values to see if there was a large spike. If something looks off, you likely have grounds to appeal.

Building Your Case: Evidence Matters

You can't just say your assessment is too high and expect results. The process typically involves gathering comparable sales data, filing a protest form before your county's deadline, and presenting evidence that your home's assessed value exceeds its fair market value.

Start by researching comparable sales. Look for homes similar to yours that have sold recently in San Angelo. They should be roughly the same size, age, and condition. Document these sales with the selling prices and dates. Use HOUSEJET to check comparable properties in your area and gather this data.

Beyond comparable sales, consider documenting any property conditions that would reduce value. Photos of needed repairs, contractor estimates for work that needs to be done, or documentation of any defects can strengthen your case. If you've had a recent appraisal done for a mortgage or insurance purposes, that's excellent evidence too.

Another approach is the "unequal appraisal" argument. Under the Texas Constitution, appraisals must be equal for properties in the same location, with similar characteristics. If your neighbor's home is similar to yours but assessed at a significantly lower value, that's a valid reason to appeal.

The Two-Stage Appeal Process in Texas

Texas has a straightforward appeal process with two main stages. Most cases are resolved at the first stage, which is good news for homeowners.

First comes the informal conference. Many Texas counties offer an informal review process where you can present your case to an appraiser before a formal hearing. If you reach an agreement, your assessment may be adjusted without needing to proceed further. In Texas, roughly 85% of protests are settled at the informal stage without ever going to a formal hearing. This is your chance to present your evidence directly to an appraiser and negotiate a lower assessment.

If the informal conference doesn't resolve your case to your satisfaction, you move to the formal hearing. After filing your protest, you will receive written notice of the date, time, place, and subject matter for a formal hearing with the ARB. You can ask for an informal conference with the appraisal district to try to resolve your protest before the hearing. If you are not able to resolve your protest informally, you can continue your protest to the ARB.

At the formal hearing before the Appraisal Review Board, the hearing is typically 10–20 minutes. You present your evidence, the assessor's office presents theirs, and the board decides.

Your Chances of Success

If you think appealing is a long shot, consider this: homeowners who do appeal win reductions roughly 40 to 60 percent of the time. Those aren't terrible odds, especially when you consider the potential savings.

Let's say you're a San Angelo homeowner with a property assessed at $200,000 and San Angelo's median effective property tax rate is 1.15%. If your assessment is overvalued by just $20,000, you're paying roughly $230 per year in unnecessary taxes. Over a few years, that adds up quickly.

Handle It Yourself or Get Help?

You absolutely can file a protest on your own. The process is straightforward for most residential properties. However, gathering comparable sales data, organizing your evidence packet, and preparing your presentation takes time and attention to detail.

Many San Angelo homeowners find it helpful to work with a local real estate agent who understands the local market and has access to comprehensive sales data. As your local real estate expert, I can help you understand whether your assessment seems reasonable and guide you through the process. I work with HOUSEJET to ensure you have the best comparable data available.

Some homeowners also hire professional tax appeal services, though you'll want to understand their fee structure upfront.

What Happens if You Appeal and Lose?

This is important: appealing carries virtually no risk. Even if you present your case and the appraisal review board decides to keep the assessment as is, you're not penalized. You don't pay a fee (unless you hired professional representation), and the assessment doesn't increase based on your challenge. Your worst case is that things stay the same.

The Real Value Goes Beyond This Year

A successful appeal doesn't just save you money this year. In most states, your reduced assessment stays in place until the next reassessment cycle, which can be anywhere from 1 to 10 years depending on where you live. In states like Texas, establishing a lower baseline makes future appeals easier. Once you've successfully appealed and received a lower assessment, that becomes your starting point for future years, giving you a powerful advantage going forward.

Mark Your Calendar and Take Action

The deadline passes quickly. Mark your calendar for May 15 or 30 days after you receive your Notice of Appraised Value, whichever comes later. Missing this deadline means missing your chance to protest for the year.

When your assessment notice arrives in April, take a weekend to review it. Pull together a few comparable sales. Jot down any property issues that might justify a lower value. If something feels wrong about the assessment, trust that instinct. You have the constitutional right to challenge it.

If you'd like to talk through your specific situation and discuss whether an appeal makes sense for your San Angelo home, I'm here to help. As your local real estate agent, I understand our market intimately and can provide the comparable data and expertise you need to make an informed decision. Reach out to me at your convenience—a simple conversation could save you hundreds of dollars a year.