Protesting Property Taxes on Your San Antonio Rental: The BCAD Playbook for Landlords

If you own a rental in Bexar County, the single biggest controllable line item on your P&L is property tax — and you have exactly one chance a year to push it down. Rental properties get no homestead exemption and no 10% appraisal cap (Texas Property Tax Code § 11.13 applies only to a primary residence), so whatever value BCAD assigns in April flows straight through to October's tax bill at the full combined rate. A $40,000 overassessment on a four-plex in 78223 is not a rounding error; at a blended rate near 2.3%, that is roughly $920 a year, every year, until you fix it.

The good news: the protest process is standardized, the deadlines are clear, and rental owners actually have better evidence than homeowners because you have rent rolls. What follows is the sequence I run on my own properties and the one I recommend when a landlord asks me what to do with the yellow envelope that just showed up.

The BCAD timeline you cannot miss

Notices of Appraised Value go out from the Bexar Appraisal District starting in mid-April. The protest deadline is May 15 or 30 days after the notice was mailed, whichever is later (Tax Code § 41.44). Miss that date and you are done for the year — there is no grace period, no "I was out of town," no extension because your property manager forgot to forward the mail.

Two practical consequences for landlords:

• Put your BCAD mailing address on file as your address, not the rental's address. Tenants throw out mail that doesn't have their name on it.
• Pull your account from bcad.org in early April every year. The notice posts online before the paper copy arrives.

Hearings run from roughly late May through July. If your case is unresolved by the ARB's certification date (usually late July), BCAD will certify the value as noticed, and your only remaining paths are post-hearing (binding arbitration, SOAH, or district court).

Filing the protest — Form 50-132

You file Comptroller Form 50-132, Notice of Protest, either through BCAD's online portal (fastest) or by mail. On the form, check both grounds for every rental:

• Market value is over market (§ 41.41(a)(1))
• Value is unequal compared with other properties (§ 41.41(a)(2))

There is no cost and no downside to checking both. Dropping the unequal-appraisal ground is the most common unforced error I see, and I'll come back to why below.

If your property is held in an LLC — as most should be — make sure the person signing the protest is either a listed manager or has a written authorization. BCAD will enforce this at the hearing.

Build your evidence: the income approach is yours to use

For an owner-occupied home, the appraisal district runs a sales-comparison approach and that's basically it. For an income-producing property, § 23.012 of the Tax Code requires the chief appraiser to consider the income approach when the owner provides the data. That is a door most landlords never walk through.

Bring to your informal and your ARB hearing:

• A current rent roll showing actual in-place rents, lease start/end dates, and any concessions.
• A 12-month operating statement with real expenses — insurance, repairs, management fee (use 8–10% even if you self-manage, which is market), vacancy allowance (5–8% is defensible in most SA submarkets), and reserves.
• Three to five rental comps at or below your in-place rents. RentInSA's active listings are a legitimate source for this; the current median asking rent across our Bexar-area inventory sits at $1,700/mo at roughly $0.80/sq ft as of October 2026, and San Antonio proper runs $1,650. If BCAD's model assumes your 1,100 sq ft duplex side rents for $1,400 and the market says $1,150, that is a value argument.
• Any deferred maintenance evidence: roof age, foundation reports, HVAC quotes, photos of the actual condition. BCAD values from the street; they do not know your slab is cracked.

Capitalize NOI at a market cap rate for the submarket and the asset class. Be ready to defend the cap you use — pulling it from a recent CoStar or broker-marketed sale is better than making one up.

Unequal appraisal — the underused angle

Under § 41.43(b)(3), you can win a reduction by showing that your property is appraised higher than the median of a reasonable number of comparable properties, appropriately adjusted. You do not have to prove market value is wrong — only that similarly-situated properties are carried on the roll for less per square foot.

Pull five to ten nearby rentals of similar age, size, and class from the BCAD public search. Build a one-page table: address, year built, square footage, appraised value, value per sq ft. If your $/sq ft is above the median of that set, you have a prima facie unequal-appraisal case. ARB panels understand this argument well and it is often easier to win than a pure market-value case.

The informal meeting with the appraiser

Before your formal hearing, BCAD will offer (or you should request) an informal with a staff appraiser. Most protests resolve here. Bring the same packet you'd bring to the ARB. Be businesslike. The appraiser has a stack of files and limited authority — if your evidence is organized and your ask is reasonable (a 7–12% reduction, not a 40% one), you will often walk out with a settlement offer.

If the offer is close to your number, take it and move on. If it is not, decline in writing and keep the ARB date.

The formal ARB hearing

The Appraisal Review Board is a panel of three citizens, not BCAD employees. You get roughly 15 minutes. Structure:

1. State your opinion of value in one sentence.
2. Walk the panel through your income approach: NOI, cap rate, indicated value.
3. Show your unequal-appraisal table.
4. Show condition issues with photos.
5. Restate your opinion of value and ask for it.

The district appraiser will present their comps. You get rebuttal. The panel deliberates on the spot and mails the order within a few weeks.

If the ARB still gets it wrong

For most single-family and small-multifamily rentals, your post-ARB options are:

• Binding arbitration under § 41A — available for properties with ARB-determined value of $5 million or less. File within 60 days of the order with a deposit (currently tiered by value). An independent arbitrator decides. This is the right path for most landlords.
• District court appeal under § 42 — more expensive, usually only worth it on larger assets.
• SOAH for commercial over $1 million.

What most landlords get wrong

• Protesting with no evidence. Showing up and saying "it feels high" loses every time. The ARB needs numbers on paper.
• Dropping unequal appraisal. It is often your strongest ground, especially in neighborhoods where BCAD has been uneven year over year (parts of 78207, 78210, 78228).
• Hiding the income data. Owners worry that showing strong rents hurts them. In most cases, strong rents paired with real expenses and a defensible cap rate still produce a value below the sales-comp number — and § 23.012 forces the district to consider it.
• Forgetting the LLC authorization. The ARB will dismiss or table your case at the hearing.
• Only protesting in the year you buy. The year after a purchase is when BCAD typically chases the sale price. Protest every year, not just when it feels bad.
• Confusing the appraisal cap. The 10% cap under § 23.23 is homestead only. Your rental has no cap and can jump 25–40% in a hot cycle with nothing holding it back except your protest.

Where to go from here

A well-run protest season is worth more to a Bexar County landlord than almost any other back-office task — a sustained 10% reduction on a four-door portfolio pays for a lot of turnover. If you are still shopping for the next door, browse active rentals and recently-leased comps at /rentals to benchmark your market rents, list a vacancy at /list-your-home, or find a Bexar County agent who underwrites rentals at /agents. More landlord-side resources live at /resources.

None of the above is legal or tax advice. If you own more than a handful of doors or hold property through layered entities, a Texas-licensed property tax consultant or real estate attorney is money well spent — especially the first year you run the process yourself.