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FIRE Number Calculator
for San Antonio, TX

How much do you need to retire in San Antonio, TX? Based on a local cost of living of $49,000/year — plausibly $47,900 to $49,300, your FIRE target is $1,225,000.

Annual cost of living
$49,000
typically $47,900–$49,300
FIRE target (25× rule)
$1,225,000
4% withdrawal
State income tax
0% — no income tax
Texas — no state income tax

Sample retirement timelines in San Antonio, TX

Starting at age 30 with $0 saved, 20% savings rate

Annual incomeTake-home payMonthly savingsYears to FIRERetire at age
$75,000$61,148$1,01931 yrs61
$100,000$78,736$1,31228 yrs58
$150,000$113,278$1,88823 yrs53

Calculate your FIRE number in San Antonio, TX

FIRE Target
$1,225,000
25× annual expenses
Years to FIRE
28
at 20% savings rate
Retire at Age
57
in 2053
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What does it take to retire in San Antonio, TX?

Using the 4% rule — the most widely used FIRE guideline — retiring in San Antonio, TX requires a portfolio of $1,225,000. This assumes you'll spend $49,000 per year and withdraw 4% of your portfolio annually, which historical data suggests can sustain a 30+ year retirement.

San Antonio, TX sits near the middle of UntilFire's US city range. That makes it useful for testing whether the real lever is spending discipline, tax efficiency, or simply earning more.

San Antonio, TX is in a no-state-income-tax environment, so more of each raise can become invested cash. That advantage compounds only if spending does not rise just as fast.

The biggest levers are still your savings rate and your timeline. Saving 20% of take-home instead of 10% can cut years off the journey, and starting earlier lowers the amount your portfolio has to do later.

Data and assumptions

How the San Antonio, TX estimate is built

Updated September 17, 2026. All amounts are annual US dollars. Housing uses the US Census Bureau's American Community Survey median gross rent for recent movers, with the all-renter median used when the recent-mover figure is unavailable. Non-housing spending uses a $34,000national annual baseline. Together they produce the $49,000 planning estimate above.

The displayed range reflects renter medians and Census margins of error, so it is a starting point rather than a household budget. Replace it with your own spending in the calculator. The FIRE target applies the common 25× guideline; it does not guarantee that a portfolio will last.

Census recent-mover rent tableCensus all-renter fallback tableTest the 25× assumptionCompare FIRE costs across Texas

Lean, Coast, Barista, and Fat FIRE numbers for San Antonio, TX

Not everyone wants the same retirement. Here is how the main FIRE variants translate to San Antonio, TX's $49,000/year cost-of-living baseline, so you can target the lifestyle you actually want.

Coast FIRE in San Antonio, TX
$118,554

Invest this by age 30 and growth alone (≈6.9% real) can reach full FIRE by 65 — no further contributions needed.

Barista FIRE in San Antonio, TX
$612,500

Portfolio covers roughly half of San Antonio, TX's $49,000 annual spending; part-time work bridges the rest.

Lean FIRE in San Antonio, TX
$857,500

A leaner $34,300/year lifestyle in San Antonio, TX (about 70% of the baseline), at the 25× rule.

Full FIRE in San Antonio, TX
$1,225,000

The standard 25× target on San Antonio, TX's $49,000 annual baseline.

Fat FIRE in San Antonio, TX
$1,837,500

A more comfortable $73,500/year lifestyle in San Antonio, TX (about 1.5× the baseline).

How much to save each month to retire in San Antonio, TX

Monthly investing needed to reach the $1,225,000 target, starting from $0 at a ~7% average annual return after inflation

TimelineSave per monthRetire at age (from 30)
10 years$7,116/mo40
15 years$3,899/mo45
20 years$2,380/mo50
25 years$1,536/mo55
30 years$1,024/mo60
National context
165th of 226

San Antonio, TX ranks by annual spending baseline among UntilFire's US cities, which helps explain whether your target is being pushed mostly by local costs or by your own spending choices.

Compared with the US median
$4,900 lower

The current UntilFire median US city baseline is $53,900/year. Every $1,000 of annual spending changes the 25× target by $25,000.

Closest cost comparisons

Nearest higher baseline: New Orleans, LA at $49,400/year.

Nearest lower baseline: Detroit, MI at $48,900/year.

Next calculator

Coast FIRE Calculator

Lower tax drag can turn more income into invested cash, which makes Coast FIRE scenarios especially worth testing in San Antonio, TX.

Open Coast FIRE Calculator
Related reading

Why Savings Rate Matters More Than Income

High income helps, but the percentage you keep is what moves your FIRE date the fastest.

Read the guide

Questions people ask about FIRE in San Antonio, TX

What FIRE number should I use for San Antonio, TX?

A simple baseline for San Antonio, TX is $1,225,000, which comes from multiplying the local annual spending estimate of $49,000 by 25. That is a starting point, not a final answer: your housing, taxes, and personal spending rhythm still matter.

Is San Antonio, TX expensive for FIRE planning?

San Antonio, TX sits about $4,900 below the current UntilFire median US city baseline of $53,900 per year, which can make the target easier to reach if income holds up.

How do taxes affect FIRE in San Antonio, TX?

San Antonio, TX benefits from a state with no income tax, so more of each raise can turn into invested savings. That does not remove lifestyle risk, but it can shorten the path to FIRE if spending stays disciplined.

What is the lean FIRE and fat FIRE number for San Antonio, TX?

Lean FIRE in San Antonio, TX — a leaner lifestyle at about 70% of the local baseline — works out to roughly $857,500. Fat FIRE, a more comfortable lifestyle at about 1.5× the baseline, is closer to $1,837,500. Standard (full) FIRE sits at $1,225,000, and Coast FIRE — the amount that can grow into full FIRE on its own by age 65 if invested by age 30 — is about $118,554.

Other cities in the same state

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