King County Appraisal District

King County is one of the least populous counties in Texas, with fewer than 200 residents. That small scale shapes how property tax administration works here — the King County Appraisal District operates with limited staff, and property owners who engage directly and early tend to get the best results.

If you believe your property has been appraised at more than its market value, or if you've been denied an exemption you qualify for, you have the right to protest. The protest deadline is May 15 or 30 days after the date your appraisal notice is mailed, whichever is later. Missing this deadline forfeits your right to challenge the appraisal for that tax year, so act promptly once your notice arrives.

To begin the process, contact the King County Appraisal District directly. Chief Appraiser Kala Briggs can be reached by phone at 806-596-4588, and the district's website is located at https://www.kingcad.org/. Because online filing is not available through this district, your protest must be submitted in writing — either by mail or in person. Your written notice of protest should clearly state the property in question and the basis for your disagreement, whether that's an incorrect market value, an unequal appraisal compared to similar properties, or an exemption issue.

Once your protest is filed, the Appraisal Review Board (ARB) will schedule a hearing. Before that hearing, request all evidence the district intends to use — this is your right under Texas law. Gather your own supporting documentation: recent comparable sales in the area, an independent appraisal, photographs of the property's condition, or any factors that may reduce its value such as deferred maintenance or access limitations.

Given the rural character of King County and its sparse real estate market, comparable sales data can be difficult to find. Focus on properties with similar acreage, land use, and improvements. If agricultural land is involved, understanding how the 1-d-1 productivity valuation is applied may be more relevant than market value comparisons.

At the ARB hearing, present your evidence clearly and concisely. The board is independent of the appraisal district and is required to consider your case on its merits.

1. What is the deadline to protest my property tax appraisal in King County?

The protest deadline is May 15 or 30 days after the King County Appraisal District mails your appraisal notice, whichever date falls later. If you do not file a written protest by that deadline, you lose the right to challenge your appraisal for that tax year. Watch your mail carefully in the spring and do not delay once your notice arrives.

2. How do I file a property tax protest in King County?

Because King County Appraisal District does not offer an online filing portal, protests must be submitted in writing by mail or delivered in person. Contact the district at 806-596-4588 or visit https://www.kingcad.org/ for current instructions and mailing address. Your written notice should identify the property and state the reason for your protest — an informal review with the appraisal staff often precedes a formal ARB hearing and may resolve the matter without a full hearing.

3. What homestead exemption is available in King County?

King County offers a General Residence Homestead exemption of $140,000 or 20% of the appraised value, whichever is greater, applied against your assessed value. Homeowners who are 65 or older, or who qualify as disabled persons, may receive an additional $200,000 exemption. Disabled veterans with a service-connected disability rating between 10% and 100% may qualify for a $5,000 exemption. To claim any of these exemptions, you must file an application with the King County Appraisal District.

4. How does agricultural land valuation work in King County?

King County is overwhelmingly rural, and a significant portion of land in the county is eligible for 1-d-1 open-space or agricultural appraisal. Under this method, land is valued based on its productive capacity — what it can generate through farming, ranching, or wildlife management — rather than its market value. This distinction can result in dramatically lower taxable values for qualifying landowners. Contact Chief Appraiser Kala Briggs at 806-596-4588 to discuss eligibility requirements and the application process.

Because King County Appraisal District does not offer online protest filing, preparation and direct communication are your most important tools. Here is how to approach the process effectively.

Start by reading your appraisal notice carefully. Note the appraised value, the property description, and the date the notice was mailed — that date determines your 30-day window if it extends beyond May 15. Write down your protest deadline immediately and treat it as firm.

Since all filings must be submitted in writing, draft a clear, concise notice of protest that identifies your property by account number or legal description and states the grounds for your challenge. Keep a copy for your records and, if mailing, use certified mail with return receipt so you have proof of timely delivery.

Call the district at 806-596-4588 before or shortly after filing your protest. In a county this small, an informal conversation with Chief Appraiser Kala Briggs or district staff can clarify what evidence they used to arrive at your value and may open the door to an informal resolution before a formal ARB hearing is necessary.

Gather evidence that is specific to your property and realistic for the local market. King County has very few arm's-length real estate transactions, so standard comparable sales data may be limited. If you own rural or agricultural land, documentation of its productive use, soil classifications, and any limitations on the property can be more persuasive than sales comparisons alone.

If your protest proceeds to an ARB hearing, arrive with organized, factual documentation. Avoid general complaints about taxes and focus on concrete reasons the appraised value does not reflect your property's actual market value or productivity. The ARB is a separate body from the appraisal district and will weigh your evidence independently.

Check the district's website at https://www.kingcad.org/ for any updated forms or procedural notices before submitting your protest.