Protesting Your BCAD Appraisal on a San Antonio Rental: The ARB Process Step by Step

If BCAD's Notice of Appraised Value on your rental came in hot this spring, you have a narrow window to push it back down. For most Bexar County landlords, the deadline to file a Notice of Protest is May 15 or 30 days after the notice was mailed, whichever is later (Texas Tax Code § 41.44). Miss that, and you are locked into the appraised value for the entire tax year — meaning a larger bill from the City of San Antonio, Bexar County, your ISD, and any MUD or ESD that taxes the parcel.

The good news: unequal-appraisal protests on single-family rentals succeed far more often than most owners expect, because BCAD mass-appraises and your property is one of thousands. The process below is what actually happens, not the sanitized version on the website.

What BCAD is actually valuing

BCAD sets market value as of January 1 of the tax year (Tax Code § 23.01). Two numbers matter on your notice:

• Market value — what they think it would sell for.
• Appraised value — what you'll actually be taxed on, which can be lower if a cap applies.

Homestead properties get the familiar 10% cap under § 23.23. For non-homestead real property — which is what your rental is — Texas added a temporary 20% circuit-breaker cap on parcels valued under $5 million starting in the 2024 cycle. This is scheduled to sunset, so confirm current status on BCAD's site or with your CPA before assuming it applies to your 2025 or later notice. The cap does not stop you from protesting market value; it just limits the year-over-year increase separately.

The statutory grounds you can protest on

Under Tax Code § 41.41, you can protest on several grounds. For a rental, two matter:

• Market value is too high (§ 41.41(a)(1)). You argue the property wouldn't actually sell on the open market for BCAD's number.
• Unequal appraisal (§ 41.41(a)(2)). You argue BCAD is valuing your property higher than a representative sample of comparable properties, appropriately adjusted. This is the one that wins quietly and often.

Check both boxes on Form 50-132 (Notice of Protest). You can file online through BCAD's eFile portal, by mail, or in person at 411 N Frio. Filing one ground and not the other means you can't raise it later at the ARB hearing.

Step 1: File the protest and request evidence

When you file, immediately request BCAD's evidence under § 41.461. They must provide — at least 14 days before your hearing — the comps, schedules, and data they used to value your property. Landlords routinely skip this step and then walk into a hearing blind. Don't.

You'll get back a packet with:

• The subject property record card (their description of your house).
• The sales comps they used for market value.
• The equity comps they used in their ratio study.
• The depreciation schedule and land value assumptions.

Read the record card first. A significant share of protests are won because BCAD has the wrong square footage, wrong bath count, or a phantom pool or garage conversion. If the physical description is wrong, photograph the reality and bring it.

Step 2: Build your evidence

For a San Antonio single-family rental, the strongest evidence package is usually:

Sales comparables

Three to five arm's-length sales that closed between roughly July of the prior year and January 1 of the tax year, within about a half-mile, same school attendance zone (Harlandale ISD comps don't help a Stone Oak house in NEISD), similar square footage (within ~15%), similar age, and similar condition. Pull these from SABOR MLS through your agent or broker, or from the BCAD sales search. Adjust for differences — pool, extra bath, lot size, updated kitchen — the same way an appraiser would.

Equity comparables

Five to ten nearby properties with similar characteristics and a lower per-square-foot appraised value. BCAD must appraise equally among comparable properties; § 41.43(b)(3) puts the burden on the district to prove its value is equal and uniform if you present a reasonable sample. This is where most non-homestead rentals get a reduction.

Condition evidence

For a tenant-occupied rental with deferred maintenance, dated finishes, foundation movement, or roof age, photograph it. A January 1 condition report from your property manager, repair invoices, and contractor estimates for known issues (foundation, HVAC, re-roof) all push the market value down. The appraiser mass-appraising your ZIP has never been inside your house.

Income approach (for duplexes, fourplexes, small multifamily)

If you own a 2–4 unit on the Southside or near downtown, bring a pro-forma: actual rent roll, vacancy, operating expenses, and a cap rate drawn from recent local small-multifamily sales. This reframes the conversation away from single-family comps.

Step 3: The informal meeting

Before your formal ARB hearing, BCAD will offer — and you should take — an informal meeting with a staff appraiser. Many protests end here. Show up with your evidence organized, lead with the record-card errors if any, then walk through your equity comps. Appraisers have authority to adjust the value on the spot. If their offer is reasonable, sign the settlement and you're done; you waive the ARB hearing.

If their offer is weak or they refuse to move, politely decline and proceed to the Appraisal Review Board.

Step 4: The ARB hearing

The ARB is a panel of citizen members appointed by the Bexar County Administrative District Judge — not BCAD employees. Hearings run roughly May through July at the BCAD office. You'll get 15–20 minutes. Format:

1. BCAD presents its evidence and proposed value.
2. You present yours.
3. Brief rebuttal each way.
4. ARB deliberates and issues a value.

Bring six printed copies of every exhibit (three panelists, BCAD, you, one spare). Lead with the strongest argument, usually unequal appraisal backed by a clean equity grid. Keep it in numbers, not grievance. The panel has heard every version of "my taxes are too high."

You'll receive a written Order Determining Protest within ~30 days.

Step 5: If the ARB gets it wrong

Two post-ARB options under Chapter 41A and Chapter 42:

• Binding arbitration — if ARB market value is $5 million or less, file Form AP-219 with the Texas Comptroller within 60 days of the ARB order. Deposit is $450–$1,550 depending on value. Refunded if the arbitrator's value is closer to yours than to the ARB's.
• District court appeal — file suit in Bexar County district court within 60 days. Practical only for higher-value properties given legal cost.

What most landlords get wrong

• Leading with "taxes are too high." The ARB sets value, not rates. Arguing the tax bill is painful is wasted minutes. Argue the value.
• Ignoring the equity argument. Owners fixate on sales comps and skip unequal appraisal, which is often the easier win on a typical SFR rental.
• Using Zillow or Redfin estimates as evidence. The ARB will disregard them. Use SABOR MLS closed sales or BCAD's own sales data.
• Forgetting to request § 41.461 evidence. You're entitled to BCAD's comps 14 days in advance. Request it the same day you file.
• Missing the May 15 deadline because the notice went to the old owner. If you bought the property mid-cycle, update the mailing address with BCAD immediately after closing. The statutory deadline doesn't care whether you actually received the notice.
• Protesting every year on autopilot without new evidence. ARB panelists remember repeat filers. Show up with a real case or don't show up.
• Conflating homestead rules with rental rules. A rental has no § 11.13 homestead exemption and — historically — no 10% cap. Don't argue for relief you're not entitled to; it damages credibility on the arguments you are.

When to bring in help

For a single SFR rental, most landlords can protest themselves in one afternoon of prep. For a portfolio of 5+ doors, or for small multifamily where the income approach matters, a property tax consultant working on contingency (usually 30–40% of first-year tax savings) is often worth it — they file, gather evidence, and appear at the ARB for you. For legal appeals past the ARB, you want a Texas property tax attorney, not a generalist.

Loop in your CPA either way: a successful protest changes your depreciation math only at the land/improvement allocation level, not the depreciable basis you set at acquisition, but it does change your annual property tax deduction on Schedule E.

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If you're still shopping for the rental in the first place, browse current listings at /rentals or, if you're a landlord deciding whether to self-manage the next protest cycle, the playbooks at /resources cover the rest of the finance stack. Ready to list a rental you already own? You can post it free at /list-your-home.