Austin spent a decade as the hottest apartment market in the country, and the underwriting habits from that era are exactly the habits that get buyers in trouble now. Two things define Austin multifamily today: the Travis Central Appraisal District (TCAD) reassesses aggressively every year, and a historic wave of new supply has pushed rents down from their 2022 peak. You have to model taxes going up and rents staying flat or falling.
TCAD reassesses annually, and the sale is the reset
Texas has no income tax and no cap on investment-property assessment growth, so counties reassess every year and lean on property tax. TCAD is one of the most aggressive appraisal districts in the state, and once you close, your purchase price (public record) becomes the anchor for next year's value.
The Austin in-city combined rate runs about 2.05%: Austin ISD, the City of Austin, Travis County, the Travis County Healthcare District, and Austin Community College. That is lower than Dallas or Houston on paper, but Austin's high per-door prices make the dollar figure large. Model year-1 tax at purchase price times ~2.05%, not the seller's bill.
Austin does have a functioning protest culture. Owners routinely appeal TCAD values, and many hire a property-tax protest firm on contingency. Budget for that as a real, recurring line, and do not assume the seller's protested value carries over. It resets.
Underwrite rents conservatively
This is the Austin-specific trap. The metro delivered more new apartments per capita than almost any market in the country from 2023 through 2025, and effective rents fell as a result. A pro forma built on 2021-2022 rent growth assumptions is fiction here. Pull in-place rents, compare them to ZIP-level ACS medians, and assume flat-to-soft near-term rents unless you have a concrete reason otherwise. Concessions (one to two months free) are common and quietly reduce effective rent below the quoted number.
Watch the exurbs for MUDs
Master-planned growth in the Austin exurbs (parts of Williamson, Hays, and Bastrop counties, and areas around Manor, Kyle, and Buda) frequently sits inside Municipal Utility Districts. A MUD adds a separate tax line of roughly 0.5% to 1.5% on top of the standard stack to repay infrastructure bonds. Confirm whether your parcel is inside a MUD before underwriting suburban Austin.
Permits and the renovation story
Major work in the City of Austin requires a permit through Austin Build + Connect (AB+C), the city's online permitting system. Cross-reference "renovated" claims against the actual permit record. See the full guide to checking permit history for how to do it.
The broker pitch, translated
- "Rents have room to run": in a metro this oversupplied, prove it with comps, not narrative.
- "Below-market taxes": a temporary state. TCAD catches up to your price.
- "Tech-driven growth": still real long term, but do not let the story paper over near-term concessions and flat rents.
- "Cap rate is X%": confirm the NOI includes reserves, management, protest costs, and post-sale tax.
The standard checklist still applies
The Austin items above sit on top of the general pre-offer due diligence checklist: permit history, code violations, demographics, debt-service stress test, and FEMA flood zone (parts of the metro sit along Onion Creek and the Colorado River floodplain). The Texas reassessment system is the one item you cannot afford to model wrong. Full tax modeling guide.
Or get the Austin research done for you
DealBrief pulls TCAD assessment, the combined tax rate for the exact jurisdiction, sale history, permit records, FEMA flood zone, and the full debt-service scenario grid for any Austin multifamily address, with year-1 tax projected at purchase price. Your first report is free.