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US relocation · 2026

California flagSan Francisco → Montana flagBillings

At $100,000 gross, you’d need about $57,576 in Billings to match San Francisco purchasing power — and same-gross take-home shifts by +$1,597/year.

By Sammy S. · Founder · AuthorUpdated for 2026

Stronger purchasing power

Billings leads

City COL moves -70 from San Francisco (165) to Billings (95). Parent median income delta (California → Montana): −$24,700. At $100,000 gross: equivalent salary ~$57,576; same-gross take-home +$1,597/year.

Side-by-side city scoreboard

San Francisco

61

Purchasing power index · 100 = national avg

COL index
165
Parent median income
93,500 USD
Sales tax
~9.03%
Property tax
~0.7%
Income tax
Taxed
$100k take-home
$72,794
Open calculator →

Billings

105

Purchasing power index · 100 = national avg

COL index
95
Parent median income
68,800 USD
Sales tax
~0%
Property tax
~0.61%
Income tax
Taxed
$100k take-home
$74,391
Open calculator →
●Example scenario: $100,000 gross (Single filer, 2026)
Illustrative numbers only—same formulas as the calculator. Take-home rows assume you earn the scenario gross while living in each city (local taxes apply). Below the tables, use “Open calculator — personalize results” to enter your salary, filing status, rent or buy, and more—the full tool uses this same city pair.

Salary & estimated take-home (USD)

Annual gross (scenario)

San Francisco

$100,000

Billings

$100,000

Est. annual take-home

San Francisco

$72,794

Billings

$74,391

Approx. combined tax + payroll burden

San Francisco

27.2%

Billings

25.6%

Take-home difference at same gross

+$1,597 / yr in Billings vs San Francisco

Equivalent gross for same lifestyle (COL-adjusted)

Billings only

$57,576

Change vs scenario gross

Billings only

-42.4%

Est. take-home at equivalent gross

Billings only

$46,050

Burden at equivalent gross

Billings only

20%

Snapshot: how to read this move ($100,000 scenario)

  • Monthly take-home at the same gross. At $100,000/year, estimated take-home is about $6,066/mo in San Francisco vs $6,199/mo in Billings—roughly +$133/mo more in Billings before housing ($1,597/yr annualized).

  • Cost of living vs taxes. Our benchmark COL index is 165 for San Francisco and 95 for Billings (100 = national average). The destination is about -42.4% less expensive than the origin for that basket—then state/province and payroll taxes shift take-home further.

  • Equivalent salary to keep the same lifestyle. To match purchasing power after COL, the model suggests about $57,576/yr gross in Billings (~$4,798/mo), with estimated take-home around $3,837/mo. Versus estimated take-home in San Francisco at the scenario gross, that is about -36.7% (by design, equivalent gross targets similar real spending power after COL and taxes; exact match varies with rounding).

  • Cash after typical 1BR rent (illustrative). Using average 1-bedroom rent in the housing table, roughly $2,516/mo is left after rent in San Francisco at the scenario gross vs $5,249/mo in Billings at the same gross. At the equivalent gross in Billings, about $2,887/mo after rent. Typical rent differs by about $2,600/mo between the two cities in our data.

Figures use the same tax and COL engine as the calculator; your household, deductions, and neighborhood can change outcomes. Use the calculator below for your exact salary and housing choice.

Housing snapshot · average rent · 1-bedroom apartment

Typical monthly rent

San Francisco

$3,550

Billings

$950

Rent as % of scenario gross ($100,000/yr)

San Francisco

42.6%

Billings

11.4%

Rent as % of equivalent gross (Billings)

Billings only

19.8%

Rent benchmarks are city-level estimates; neighborhoods vary. Mortgage (buy) and other home sizes are available in the full calculator.

Housing: San Francisco → Billings

Approximate median monthly rents for the primary metros in San Francisco and Billings. Negative delta means housing is cheaper in Billings. Figures are planning estimates — neighborhoods vary.

1BR rent delta / yr

−$31,200

1BR % of $100k (San Francisco)

42.6%

$3,550/mo

1BR % of $100k (Billings)

11.4%

$950/mo

Property tax (effective)

~0.7% → ~0.61%

San Francisco → Billings

At COL-equivalent salary in Billings, 1BR rent is about 19.8% of gross — vs 11.4% if you keep $100,000 gross.

Apartment rent (monthly)

SizeSan FranciscoBillingsDelta / mo
Studio$2,800$780−$2,020
1 bedroom$3,550$950−$2,600
2 bedroom$4,800$1,180−$3,620
3 bedroom$6,200$1,480−$4,720

House rent (monthly)

SizeSan FranciscoBillingsDelta / mo
2 bedroom$4,500$1,280−$3,220
3 bedroom$6,000$1,580−$4,420
4 bedroom$7,800$1,980−$5,820

Buy instead? Est. mortgage (3BR house)

San Francisco payment

$6,898/mo

Billings payment

$1,816/mo

Payment delta

−$5,081

Est. purchase price

$1,296,000 → $341,280

Illustrative P&I only: 20% down, 7% APR, 30-year fixed. Price ≈ annual rent × 18 (price-to-rent). Taxes, insurance, and HOA not included — open the calculator Housing section to adjust.

Sources: approximate metro medians (Zillow / Zumper-style US benchmarks; CMHC-style for Canada). Property tax rates are statewide effective averages. Personalize unit size, rent vs buy, and down payment in the relocation calculator.

Model housing for San Francisco → Billings

Key takeaways — San Francisco → Billings

  • Billings has a city cost-of-living index of 95 vs 165 in San Francisco (national average = 100) — about 42% cheaper on our index.
  • At $100,000 gross (Single filer), roughly $57,576 in Billings matches San Francisco purchasing power (-42.4% COL-adjusted).
  • Keeping the same $100,000 gross, estimated take-home shifts by about +$1,597/year (San Francisco → Billings) after federal, state, and FICA taxes.
  • Parent-state paycheck model at $100k (single): California ~$72,794 vs Montana ~$74,391 (+$1,597/year) — city COL can still change the equivalent salary you need.
  • Illustrative 1-bedroom rent: ~$3,550/mo in San Francisco vs ~$950/mo in Billings (−$31,200/year).
  • Quality-of-life snapshot (indicative): overall 60 in San Francisco vs 57 in Billings — higher safety & worse weather in the new city.

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Estimates for planning only. Cost-of-living indices and tax rules change; verify with local sources or a professional before relocating.