Moving from Austin to San Antonio presents a clear tension: lower destination housing dollars alongside weaker income and payroll measures. In IRS SOI migration 2022–2023, 6,106 tax-return households moved from Austin to San Antonio, associated with 10,084 exemptions. Those returns represented 10.27% of Austin outbound returns and 11.46% of San Antonio inbound returns. IRS flow measures tax-return households; it does not identify renters, every mover or future demand. The corridor records past tax-filer relocation, with $72,680.48 of AGI per return, not a lease-up assumption.
For housing costs, Zillow’s June 30, 2026 ZORI observations put metro asking rent at $1,653 in Austin and $1,416 in San Antonio. The same-date ZHVI figures place the metro Zillow home-value benchmark at $426,944 and $280,370, respectively. The corresponding simple gross-yield screens are 4.65% and 6.06%. San Antonio therefore shows lower household rent and a lower home-value benchmark, while its gross-yield screen sits higher before vacancy, concessions, operating costs, capital work and financing.
Separately dated evidence complicates that lower-cost reading: the ACS 2024 five-year release shows lower destination household income, while BLS CES over the year to June 2026 shows slower destination payroll growth. Those observations are not synchronized with Zillow and do not establish the mover’s wage or a property’s tenant demand. For a renter, the central question is how an actual compensation package compares with a specific unit’s total monthly cost. For an owner, the next underwriting question is property-specific: after verified achievable rent, concessions, taxes, insurance, flood exposure, repairs, management, vacancy and financing, what cash margin remains?

