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US relocation · 2026

Massachusetts flagBoston → Pennsylvania flagPhiladelphia

At $100,000 gross, you’d need about $73,103 in Philadelphia to match Boston purchasing power — and same-gross take-home shifts by +$2,810/year.

By Sammy S. · Founder · AuthorUpdated for 2026

Stronger purchasing power

Philadelphia leads

City COL moves -39 from Boston (145) to Philadelphia (106). Parent median income delta (Massachusetts → Pennsylvania): −$24,400. At $100,000 gross: equivalent salary ~$73,103; same-gross take-home +$2,810/year.

Side-by-side city scoreboard

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 →

Philadelphia

94

Purchasing power index · 100 = national avg

COL index
106
Parent median income
72,800 USD
Sales tax
~6.34%
Property tax
~1.26%
Income tax
Taxed
$100k take-home
$76,110
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)

Boston

$100,000

Philadelphia

$100,000

Est. annual take-home

Boston

$73,300

Philadelphia

$76,110

Approx. combined tax + payroll burden

Boston

26.7%

Philadelphia

23.9%

Take-home difference at same gross

+$2,810 / yr in Philadelphia vs Boston

Equivalent gross for same lifestyle (COL-adjusted)

Philadelphia only

$73,103

Change vs scenario gross

Philadelphia only

-26.9%

Est. take-home at equivalent gross

Philadelphia only

$58,014

Burden at equivalent gross

Philadelphia only

20.6%

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 $6,108/mo in Boston vs $6,343/mo in Philadelphia—roughly +$235/mo more in Philadelphia before housing ($2,810/yr annualized).

  • Cost of living vs taxes. Our benchmark COL index is 145 for Boston and 106 for Philadelphia (100 = national average). The destination is about -26.9% 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 $73,103/yr gross in Philadelphia (~$6,092/mo), with estimated take-home around $4,835/mo. Versus estimated take-home in Boston at the scenario gross, that is about -20.9% (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 $3,328/mo is left after rent in Boston at the scenario gross vs $4,793/mo in Philadelphia at the same gross. At the equivalent gross in Philadelphia, about $3,285/mo after rent. Typical rent differs by about $1,230/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

Boston

$2,780

Philadelphia

$1,550

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

Boston

33.4%

Philadelphia

18.6%

Rent as % of equivalent gross (Philadelphia)

Philadelphia only

25.4%

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

Housing: Boston → Philadelphia

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

1BR rent delta / yr

−$14,760

1BR % of $100k (Boston)

33.4%

$2,780/mo

1BR % of $100k (Philadelphia)

18.6%

$1,550/mo

Property tax (effective)

~1% → ~1.26%

Boston → Philadelphia

At COL-equivalent salary in Philadelphia, 1BR rent is about 25.4% of gross — vs 18.6% if you keep $100,000 gross.

Apartment rent (monthly)

SizeBostonPhiladelphiaDelta / mo
Studio$2,300$1,300−$1,000
1 bedroom$2,780$1,550−$1,230
2 bedroom$3,300$1,850−$1,450
3 bedroom$4,100$2,300−$1,800

House rent (monthly)

SizeBostonPhiladelphiaDelta / mo
2 bedroom$3,200$2,000−$1,200
3 bedroom$4,000$2,500−$1,500
4 bedroom$5,000$3,100−$1,900

Buy instead? Est. mortgage (3BR house)

Boston payment

$4,599/mo

Philadelphia payment

$2,874/mo

Payment delta

−$1,724

Est. purchase price

$864,000 → $540,000

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 Boston → Philadelphia

Key takeaways — Boston → Philadelphia

  • Philadelphia has a city cost-of-living index of 106 vs 145 in Boston (national average = 100) — about 27% cheaper on our index.
  • At $100,000 gross (Single filer), roughly $73,103 in Philadelphia matches Boston purchasing power (-26.9% COL-adjusted).
  • Keeping the same $100,000 gross, estimated take-home shifts by about +$2,810/year (Boston → Philadelphia) after federal, state, and FICA taxes.
  • Parent-state paycheck model at $100k (single): Massachusetts ~$73,300 vs Pennsylvania ~$76,110 (+$2,810/year) — city COL can still change the equivalent salary you need.
  • Illustrative 1-bedroom rent: ~$2,780/mo in Boston vs ~$1,550/mo in Philadelphia (−$14,760/year).
  • Quality-of-life snapshot (indicative): overall 55 in Boston vs 50 in Philadelphia — lower safety & better 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.