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US relocation · 2026

Idaho flagBoise → Massachusetts flagBoston

At $100,000 gross, you’d need about $142,157 in Boston to match Boise purchasing power — and same-gross take-home shifts by −$580/year.

By Sammy S. · Founder · AuthorUpdated for 2026

Stronger purchasing power

Boise leads

City COL moves +43 from Boise (102) to Boston (145). Parent median income delta (Idaho → Massachusetts): +$26,400. At $100,000 gross: equivalent salary ~$142,157; same-gross take-home −$580/year.

Side-by-side city scoreboard

Boise

98

Purchasing power index · 100 = national avg

COL index
102
Parent median income
70,800 USD
Sales tax
~6.03%
Property tax
~0.5%
Income tax
Taxed
$100k take-home
$73,880
Open calculator →

Boston

69

Purchasing power index · 100 = national avg

COL index
145
Parent median income
97,200 USD
Sales tax
~6.25%
Property tax
~1%
Income tax
Taxed
$100k take-home
$73,300
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)

Boise

$100,000

Boston

$100,000

Est. annual take-home

Boise

$73,880

Boston

$73,300

Approx. combined tax + payroll burden

Boise

26.1%

Boston

26.7%

Take-home difference at same gross

$-580 / yr in Boston vs Boise

Equivalent gross for same lifestyle (COL-adjusted)

Boston only

$142,157

Change vs scenario gross

Boston only

+42.2%

Est. take-home at equivalent gross

Boston only

$100,071

Burden at equivalent gross

Boston only

29.6%

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 $6,157/mo in Boise vs $6,108/mo in Boston—roughly $49/mo less in Boston before housing ($580/yr annualized).

  • Cost of living vs taxes. Our benchmark COL index is 102 for Boise and 145 for Boston (100 = national average). The destination is about +42.2% more 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 $142,157/yr gross in Boston (~$11,846/mo), with estimated take-home around $8,339/mo. Versus estimated take-home in Boise at the scenario gross, that is about +35.5% (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 $4,877/mo is left after rent in Boise at the scenario gross vs $3,328/mo in Boston at the same gross. At the equivalent gross in Boston, about $5,559/mo after rent. Typical rent differs by about +$1,500/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

Boise

$1,280

Boston

$2,780

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

Boise

15.4%

Boston

33.4%

Rent as % of equivalent gross (Boston)

Boston only

23.5%

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

Housing: Boise → Boston

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

1BR rent delta / yr

+$18,000

1BR % of $100k (Boise)

15.4%

$1,280/mo

1BR % of $100k (Boston)

33.4%

$2,780/mo

Property tax (effective)

~0.5% → ~1%

Boise → Boston

At COL-equivalent salary in Boston, 1BR rent is about 23.5% of gross — vs 33.4% if you keep $100,000 gross.

Apartment rent (monthly)

SizeBoiseBostonDelta / mo
Studio$1,050$2,300+$1,250
1 bedroom$1,280$2,780+$1,500
2 bedroom$1,580$3,300+$1,720
3 bedroom$1,980$4,100+$2,120

House rent (monthly)

SizeBoiseBostonDelta / mo
2 bedroom$1,680$3,200+$1,520
3 bedroom$2,100$4,000+$1,900
4 bedroom$2,650$5,000+$2,350

Buy instead? Est. mortgage (3BR house)

Boise payment

$2,414/mo

Boston payment

$4,599/mo

Payment delta

+$2,184

Est. purchase price

$453,600 → $864,000

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 Boise → Boston

Key takeaways — Boise → Boston

  • Boston has a city cost-of-living index of 145 vs 102 in Boise (national average = 100) — about 42% more expensive on our index.
  • At $100,000 gross (Single filer), roughly $142,157 in Boston matches Boise purchasing power (+42.2% COL-adjusted).
  • Keeping the same $100,000 gross, estimated take-home shifts by about −$580/year (Boise → Boston) after federal, state, and FICA taxes.
  • Parent-state paycheck model at $100k (single): Idaho ~$73,880 vs Massachusetts ~$73,300 (−$580/year) — city COL can still change the equivalent salary you need.
  • Illustrative 1-bedroom rent: ~$1,280/mo in Boise vs ~$2,780/mo in Boston (+$18,000/year).
  • Quality-of-life snapshot (indicative): overall 63 in Boise vs 55 in Boston — lower 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.