May 15, 2027 falls on a Saturday. Texas Tax Code § 1.06 moves any deadline landing on a weekend or holiday to the next business day, so the floor for every Texas property is Monday 17 May 2027. If your appraisal district mails your notice after about 17 April, you have longer still.
Almost every page you will read says the Texas deadline is 15 May. That is half the rule. Tax Code § 41.44(a)(1) says a notice of protest is timely if filed “not later than May 15 or the 30th day after the date that notice to the property owner was delivered … whichever is later.”
So the deadline is a property of your notice, not of your county. Two owners in the same county can hold different deadlines — Collin County mailed real-property notices on 15 April 2026 and business personal property from 13 May, inside one district, producing two different dates.
Find the date printed on your Notice of Appraised Value. Add 30 days. If that is later than May 17, 2027, that later date is your deadline. If it is earlier — or you never received a notice — May 17, 2027 is your deadline. When in doubt, work to the earlier of the two: filing early costs nothing and filing late costs the year.
Tax Code § 1.06: “If the last day for the performance of an act is a Saturday, Sunday, or legal state or national holiday, the act is timely if performed on the next regular business day.”
May 15, 2027 is a Saturday and 16 May 2027 is a Sunday, so the first regular business day is Monday 17 May 2027. Government Code § 662.003 lists no state or national holiday in mid-May — Memorial Day 2027 is the 31st — so nothing pushes it further.
This matters because filing on the 17th when you believed the deadline was the 15th feels like being two days late. It is not. It is on time.
In 2026, Harris Central Appraisal District mailed notices dated 17 April. Thirty days from 17 April is Sunday 17 May, which § 1.06 rolls to Monday 18 May — so most Harris owners had until the 18th.
HCAD’s own protest-deadline release (26-08) was headlined “Protest Deadline Is May 15” and told owners they had “until Thursday, May 15”. 15 May 2026 was a Friday. The body of the release did carry the § 41.44 rule correctly — but the headline named a date three days early and a weekday that did not exist.
We are not picking on HCAD. As this page is written, Brazoria Central Appraisal District’s live appeals page still displays a deadline of “Wednesday, May 15, 2025”. District pages go stale. The date on your notice does not.
Districts anchor to a calendar date, not a weekday — Fort Bend mailed on 1 April in 2024, 2025 and 2026, which were a Monday, a Tuesday and a Wednesday. That makes the past a usable guide and the weekday irrelevant.
Everything in the “implied 2027” column is a projection, not a commitment. No district has announced a 2027 date. Where we have fewer than two observations, or where a district is visibly drifting, we publish no projection rather than a guess — an invented date here would be worse than an empty cell.
| District | Observed mailing dates | Source | Implied 2027 deadline |
|---|---|---|---|
| Bexar Central Appraisal District | April 10 2026 · April 11 2025 | District release | May 17, 2027 floor only |
| Collin Central Appraisal District | April 15 2026 · April 15 2024 | District release | May 17, 2027 floor only |
| Dallas Central Appraisal District | none found | No data found | May 17, 2027 floor only |
| Denton Central Appraisal District | April 15 2025 | Named news outlet | May 17, 2027 floor only |
| El Paso Central Appraisal District | none found | No data found | May 17, 2027 floor only |
| Fort Bend Central Appraisal District | April 1 2026 · April 1 2025 · April 1 2024 | District release | May 17, 2027 floor only |
| Harris Central Appraisal District | April 17 2026 | Third party, uncited | May 17, 2027 floor only |
| Tarrant Appraisal District | April 15 2025 · April 17 2024 | Named news outlet | May 17, 2027 floor only |
| Tax Appraisal District of Bell County | April 1 2025 | Named news outlet | May 17, 2027 floor only |
| Travis Central Appraisal District | March 25 2026 · April 9 2025 · April 11 2024 | District release | May 17, 2027 floor only |
| Williamson Central Appraisal District | March 31 2026 | Named news outlet | May 17, 2027 floor only |
Every projection is clamped to the statutory floor: § 41.44 lets a district clear the floor by mailing late, never undercut it. We file in all 254 Texas counties, not only the districts listed here — this table is where the published evidence is, not where the coverage is.
Missing the deadline usually costs you the year, but not always. Three routes survive it, and none of them is well known:
You never received a required notice. § 41.411 lets you protest the district’s failure to deliver a notice it was obliged to send, provided you file before the taxes become delinquent. Note that a notice is only required in certain cases — many owners get none at all in a year their value did not rise.
The value is badly wrong. § 25.25(d) allows a late correction where a residence homestead is over-appraised by more than one quarter, or other property by more than one third. There is a late-correction penalty, and the bar is deliberately high.
It is a clerical error, not a judgement. § 25.25(c) reaches back five years for clerical errors, multiple appraisals of one property, and property listed to the wrong owner.
Tax Code § 23.231 — the 20% annual cap on non-homestead real property valued under the inflation-adjusted threshold ($5,320,000 for 2026) —contains the words “This section expires December 31, 2026.”
Unless the 90th Legislature, which convenes on 12 January 2027, extends it, 2027 is the first year rental property, second homes and small commercial property in Texas are appraised with no annual cap at all. If you own any of those, the value on your 2027 notice may move by considerably more than you are used to, and nothing absorbs it.
Homesteads are unaffected — the 10% cap in § 23.23 is a separate provision and does not expire. We are tracking whether the Legislature acts and will update this page either way.
May 17, 2027. May 15, 2027 is a Saturday, and § 1.06 moves a deadline falling on a weekend to the next business day. Both dates get quoted because most published pages state the statute’s raw date without applying the roll.
Yes. A district only has to send a notice in specific circumstances — chiefly when your value rose. Bexar mailed about 196,000 notices in 2026 against roughly 788,000 parcels. No notice does not mean no right to protest, and the floor still applies to you.
Possibly. Texas gives two independent grounds: that the market value is too high (§ 41.43(a)), and that your property is appraised unequally compared with a representative sample of comparable properties (§ 41.43(b)). The second does not depend on your value having risen — only on it being out of line with your neighbours. We explain unequal appraisal here.
The Appraisal Review Board determines the value, and it is not bound to move only downward. In practice an increase is uncommon. What we will not do is tell you it is impossible — that claim gets made a lot by people with an incentive to make it.
Early. In 2025 Travis County had roughly 150,000 protests two days before the deadline and finished the season at 204,869 — about a quarter of the entire year arrived in the last 48 hours. Informal conference slots are finite and they are allocated in the order protests arrive.
We prepare your Notice of Protest (Form 50-132) with comparable-sales evidence, you sign it, and we mail it to your appraisal district by USPS certified mail so there is proof of timely filing. $89 flat, whatever the outcome — we never take a percentage of a reduction. We do not appear at your hearing on your behalf.
TaxAppeal USA is a self-service document-preparation and mail filing service. In every state we serve, including Florida, we are not property tax consultants, agents, or representatives, we do not provide tax or legal advice, and we do not represent customers before any appraisal district, board of equalization, value adjustment board, or review board. Every protest and petition is prepared for the property owner, signed by the owner, and filed in the owner’s name. In Florida we also pay your county’s Value Adjustment Board filing fee on your behalf and mail your petition to the Clerk of the Value Adjustment Board. Your petition is signed by you as the property owner under section 194.011(3), Florida Statutes. TaxAppeal USA does not sign as your representative, does not appear before the Board, and does not present evidence or argument at a hearing.