Arizona taxes retirement income. Texas doesn't. Phoenix HOAs — especially RCSC at Sun City — carry golf and recreation fees that change the cost model. And the heat comparison is not what most buyers expect. Here's the full picture.
| Category | San Antonio, TX | Phoenix Metro, AZ |
|---|---|---|
| State income tax | 0% — no state income tax | 2.5% flat (AZ reduced from graduated rates, 2023) |
| Income tax on $80K retirement | $0 | ~$2,000/year (2.5% flat, some pension exemptions) |
| Property tax (65+, $400K) | ~$6,753/year (Bexar 2025) | ~$2,400–$3,200/year (AZ rates much lower; Senior Valuation Protection program) |
| Senior property tax programs | $200K combined school exemption + school freeze | Senior Valuation Protection (freezes assessed value, not rate — income-limited) |
| HOA/RCSC (Sun City) | $185/mo (HCR — includes exterior) | Sun City RCSC: ~$496–$550/year annual fee + usage; Sun City West similar. Lower than HCR monthly but different model. |
| 55+ community breadth | 9 communities, 3 counties | Largest 55+ market in the US — Sun City, Sun City West, Sun City Grand, Trilogy, Trilogy at Vistancia, Robson Ranch, dozens more |
| Summer heat | 95–104°F, 30–50% humidity | 110–118°F, 10–20% humidity — dangerously hot June–August |
| Winter climate | Mild — Jan avg high 62°F | Excellent — Jan avg high 67°F, popular snowbird destination |
| Outdoor activity (summer) | Early AM and evenings usable June–Sept | Very limited June–August — extreme heat advisories common, 110°F+ dangerous |
| Military access | JBSA — 20–25 miles, largest US installation | Luke AFB (west valley), Davis-Monthan in Tucson — moderate proximity |
| Water scarcity | No significant water crisis | Colorado River water rights under pressure — long-term supply question |
| Homeowners insurance | $1,600–$2,200/year ($400K home) | $1,400–$2,000/year — comparable; wildfire risk in some AZ areas |
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Talk to a Specialist →Arizona's 2.5% flat income tax applies to most retirement income — IRA distributions, 401(k) withdrawals, and non-exempt pension income. Arizona does exempt Social Security, and some federal government and Arizona state pensions receive partial exemptions. But for typical private-sector retirees drawing from IRAs and 401(k)s, Arizona income tax is real.
At $80,000 in retirement distributions, Arizona income tax runs approximately $2,000/year. That's $167/month — real money, but not transformative. For high-income retirees drawing $150,000+/year, the gap is $3,750+/year.
Arizona's property tax rates are dramatically lower than Texas. Maricopa County effective rates run approximately 0.5–0.8% of assessed value (which is 10% of full cash value for residential). On a $400,000 home, annual property tax in Maricopa County runs $2,000–$3,200 — roughly half of Bexar County's $6,753.
Arizona's Senior Valuation Protection program (income-limited) freezes assessed value for qualifying seniors. Combined with already-low rates, long-term Arizona homeowners can achieve remarkably low annual property tax obligations.
The property tax advantage for Arizona is approximately $3,500–$4,500/year over San Antonio at equivalent home values. That partially offsets the income tax advantage Texas holds — net, they're closer than most buyers expect.
Phoenix's dramatically lower property tax makes it approximately $207/month less expensive than San Antonio at the same home value. The income tax partially offsets this ($167/month) but Phoenix still comes out ahead on pure monthly cost — by about $40/month at $400K.
At $600K homes, the property tax gap widens. Phoenix holds the monthly cost advantage across most price points due to Maricopa County's property tax structure.
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Both are hot. But Phoenix summers are in a different category. San Antonio peaks at 104–107°F during heat waves. Phoenix regularly exceeds 115°F in July, with nights that don't drop below 90°F. The number of days above 110°F in Phoenix averages 30–40 annually; San Antonio averages 0–3 days above 105°F.
Phoenix heat advisories — when outdoor activity is genuinely medically dangerous — run from June through August. Early morning walks are safe before 7AM. After that, outdoors in June Phoenix is a health risk for most seniors. San Antonio's peak heat is uncomfortable but not in the same danger category.
The tradeoff: Phoenix winters are exceptional — dry, mild, outdoor-friendly from October through April. Snowbirds who spend winters in Phoenix and summers elsewhere get the best of both. Full-year Phoenix residents in their 70s and 80s with cardiovascular conditions should take the summer heat risk seriously.
Arizona's water supply depends significantly on Colorado River allocations that are under increasing pressure. Lake Mead and Lake Powell have declined to historically low levels. Arizona has invested in water reclamation and conservation infrastructure — it has one of the most sophisticated water management systems in the US. But buyers planning 20–30 year ownership horizons in Phoenix are buying into a water supply story that is not resolved and not guaranteed.
San Antonio draws from the Edwards Aquifer, which has its own supply challenges but in a different risk profile. This isn't a reason to avoid Phoenix, but for buyers thinking generationally about their choice, it's a variable with no equivalent in San Antonio.
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