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US relocation · 2026

Montana flagMontana → Arizona flagArizona

At $100,000 gross, you’d need about $112,632 in Arizona to match Montana purchasing power — and same-gross take-home shifts by +$2,289/year.

By Sammy S. · Founder · AuthorUpdated for 2026

Stronger purchasing power

Montana leads

COL index moves +1.7 from Montana (105.9) to Arizona (107.6). Median household income delta: +$2,400 (68,800 USD → 71,200 USD). At $100,000 gross (Billings → Phoenix): equivalent salary ~$112,632; same-gross take-home +$2,289/year.

Side-by-side state scoreboard

Montana

94

Purchasing power index · 100 = national avg

COL index
105.9
Median income
68,800 USD
Sales tax
~0%
Property tax
~0.61%
Income tax
Taxed
$100k take-home
$74,391
Montana calculator →

Arizona

93

Purchasing power index · 100 = national avg

COL index
107.6
Median income
71,200 USD
Sales tax
~8.54%
Property tax
~0.48%
Income tax
Taxed
$100k take-home
$76,680
Arizona calculator →

$100k example: Billings → Phoenix

Single filer, tax year 2026. Equivalent salary adjusts for city cost of living; take-home uses our federal + state + payroll engine.

Equivalent gross needed

$112,632

+12.6% vs current

Take-home in Billings

$74,391

Take-home in Phoenix (same gross)

$76,680

Same-gross delta

+$2,289

1BR rent: $950/mo → $1,420/mo
Personalize this city pair

Housing: Billings → Phoenix

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

1BR rent delta / yr

+$5,640

1BR % of $100k (Billings)

11.4%

$950/mo

1BR % of $100k (Phoenix)

17%

$1,420/mo

Property tax (effective)

~0.61% → ~0.48%

Montana → Arizona

At COL-equivalent salary in Phoenix, 1BR rent is about 15.1% of gross — vs 17% if you keep $100,000 gross.

Apartment rent (monthly)

SizeBillingsPhoenixDelta / mo
Studio$780$1,200+$420
1 bedroom$950$1,420+$470
2 bedroom$1,180$1,750+$570
3 bedroom$1,480$2,200+$720

House rent (monthly)

SizeBillingsPhoenixDelta / mo
2 bedroom$1,280$1,900+$620
3 bedroom$1,580$2,400+$820
4 bedroom$1,980$3,000+$1,020

Buy instead? Est. mortgage (3BR house)

Billings payment

$1,816/mo

Phoenix payment

$2,759/mo

Payment delta

+$943

Est. purchase price

$341,280 → $518,400

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 Billings → Phoenix

City-to-city comparisons

Run the calculator for Montana → Arizona

Equivalent salary and after-tax take-home need specific metros. Pick a pair to pre-fill the relocation calculator, or open it blank.

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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.