What the cost-of-living calculators miss
Most tools flatten the Austin versus Miami comparison into a single percentage. That number hides almost everything that actually matters.
Both cities live in no-income-tax states, so the tax math is clean. The Texas-versus-Florida tax comparison on wages is effectively a wash.
Home price is close: Miami $585,000, Austin $548,000. Within the noise of monthly pulls.
Property tax effective: Miami 0.80%, Austin 1.80%. The Austin bill in absolute dollars on equivalent homes runs about twice the Miami bill. This matters meaningfully over a decade.
Where Miami gets brutal is homeowners insurance: the Florida state average is $5,527 a year as of 2024, and Miami-Dade runs higher. Austin insurance averages $4,456. Both are elevated nationally, but Miami pricing reflects Category-4 hurricane risk and three decades of post-Andrew repricing.
Auto insurance is worse in Miami: $3,183 Florida average versus $2,228 Texas. Miami itself runs above the state average because of density and fraud rates.
Sales tax is modestly better in Miami at 7.00% combined versus Austin 8.25%.
Net, total monthly cost of ownership is higher in Miami than Austin despite the similar home price, because insurance eats the property-tax advantage.