Tax Calculator

Paycheck Tax Calculator

Back to calculator
US relocation · 2026

Montana flagBillings → Massachusetts flagBoston

At $100,000 gross, you’d need about $152,632 in Boston to match Billings purchasing power — and same-gross take-home shifts by −$1,091/year.

By Sammy S. · Founder · AuthorUpdated for 2026

Stronger purchasing power

Billings leads

City COL moves +50 from Billings (95) to Boston (145). Parent median income delta (Montana → Massachusetts): +$28,400. At $100,000 gross: equivalent salary ~$152,632; same-gross take-home −$1,091/year.

Side-by-side city scoreboard

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 →

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)

Billings

$100,000

Boston

$100,000

Est. annual take-home

Billings

$74,391

Boston

$73,300

Approx. combined tax + payroll burden

Billings

25.6%

Boston

26.7%

Take-home difference at same gross

$-1,091 / yr in Boston vs Billings

Equivalent gross for same lifestyle (COL-adjusted)

Boston only

$152,632

Change vs scenario gross

Boston only

+52.6%

Est. take-home at equivalent gross

Boston only

$106,615

Burden at equivalent gross

Boston only

30.1%

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 $6,199/mo in Billings vs $6,108/mo in Boston—roughly $91/mo less in Boston before housing ($1,091/yr annualized).

  • Cost of living vs taxes. Our benchmark COL index is 95 for Billings and 145 for Boston (100 = national average). The destination is about +52.6% 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 $152,632/yr gross in Boston (~$12,719/mo), with estimated take-home around $8,885/mo. Versus estimated take-home in Billings at the scenario gross, that is about +43.3% (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 $5,249/mo is left after rent in Billings at the scenario gross vs $3,328/mo in Boston at the same gross. At the equivalent gross in Boston, about $6,105/mo after rent. Typical rent differs by about +$1,830/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

Billings

$950

Boston

$2,780

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

Billings

11.4%

Boston

33.4%

Rent as % of equivalent gross (Boston)

Boston only

21.9%

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

Housing: Billings → Boston

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

1BR rent delta / yr

+$21,960

1BR % of $100k (Billings)

11.4%

$950/mo

1BR % of $100k (Boston)

33.4%

$2,780/mo

Property tax (effective)

~0.61% → ~1%

Billings → Boston

At COL-equivalent salary in Boston, 1BR rent is about 21.9% of gross — vs 33.4% if you keep $100,000 gross.

Apartment rent (monthly)

SizeBillingsBostonDelta / mo
Studio$780$2,300+$1,520
1 bedroom$950$2,780+$1,830
2 bedroom$1,180$3,300+$2,120
3 bedroom$1,480$4,100+$2,620

House rent (monthly)

SizeBillingsBostonDelta / mo
2 bedroom$1,280$3,200+$1,920
3 bedroom$1,580$4,000+$2,420
4 bedroom$1,980$5,000+$3,020

Buy instead? Est. mortgage (3BR house)

Billings payment

$1,816/mo

Boston payment

$4,599/mo

Payment delta

+$2,782

Est. purchase price

$341,280 → $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 Billings → Boston

Key takeaways — Billings → Boston

  • Boston has a city cost-of-living index of 145 vs 95 in Billings (national average = 100) — about 53% more expensive on our index.
  • At $100,000 gross (Single filer), roughly $152,632 in Boston matches Billings purchasing power (+52.6% COL-adjusted).
  • Keeping the same $100,000 gross, estimated take-home shifts by about −$1,091/year (Billings → Boston) after federal, state, and FICA taxes.
  • Parent-state paycheck model at $100k (single): Montana ~$74,391 vs Massachusetts ~$73,300 (−$1,091/year) — city COL can still change the equivalent salary you need.
  • Illustrative 1-bedroom rent: ~$950/mo in Billings vs ~$2,780/mo in Boston (+$21,960/year).
  • Quality-of-life snapshot (indicative): overall 57 in Billings vs 55 in Boston — Similar crime and weather in both cities.

Related tools

Dig into taxes, flip the move, or compare other cities.

More city & state comparisons

Compare other moves or see which states are best for take-home pay.

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