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HEAD-TO-HEAD TAX COMPARISON · 2026

COUNTRY A Massachusetts VS COUNTRY B Connecticut

Side-by-side analysis of income tax, effective rates, and take-home pay for Massachusetts and Connecticut in 2026.

Daniel · CountryTaxCalc Updated May 2026 Income tax verified October 2026 Tax Comparison 2026
Calculate your take-home → See all comparisons →
OVERVIEW
Massachusetts and Connecticut represent a nuanced tax comparison that flips depending on income. Connecticut’s progressive brackets are cheaper than Massachusetts’ 5% flat rate up to around $71,000, but above that Massachusetts pulls ahead of Connecticut through most higher incomes — even after Massachusetts’ 4% millionaire surtax (9% combined, on income above $1,107,750) kicks in, until roughly $2.2 million, where Connecticut becomes cheaper once more. Estate tax is a critical differentiator: Massachusetts taxes estates above $2 million (a $99,600 credit removed the old cliff in 2023) with no portability, while Connecticut’s exemption matches the federal $15 million.
Section 01

The Big Picture

Top-line rates and effective take-home for a typical earner — including income tax, social contributions, and applicable surcharges.

🦞
COUNTRY A
Massachusetts
TAX RATE
5%
Flat (9% on $1M+)

5% flat income tax; 4% Millionaire Tax surtax on income above $1M = 9% combined

âš“
COUNTRY B
Connecticut
TAX RATE
2-6.99%
7 Progressive Brackets

Progressive 2-6.99% across 7 brackets; cheaper than MA below roughly $71K

TYPICAL ANNUAL DIFFERENCE
Moving from Connecticut → Massachusetts at $100,000
$295

That's $25/month back in your pocket

Section 02

Tax Savings by Income Level

Net take-home after all income tax, social contributions, and surcharges — for a single employee with no dependents.

GROSS INCOME
🦞 MA TAX
âš“ CT TAX
SAVINGS
10-YEAR
$50,000
$2,180
$1,800
$380 (CT cheaper)
$3,800
$75,000
$3,430
$3,475
$45 (MA cheaper)
$450
$100,000
$4,680
$4,975
$295 (MA cheaper)
$2,950
$150,000
$7,180
$8,225
$1,045 (MA cheaper)
$10,450
$250,000
$12,180
$15,400
$3,220 (MA cheaper)
$32,200
$500,000
$24,680
$34,450
$9,770 (MA cheaper)
$97,700
💡

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🦞

Massachusetts Pros & Cons

+ PROS
  • Lower effective rate on incomes from about $71K to $2.2M (5% flat vs CT’s progressive brackets)
  • No local income tax in Massachusetts
  • 6.25% sales tax (slightly lower than CT’s 6.35%)
  • Strong tech and biotech job market (Boston/Cambridge)
− CONS
  • Millionaire Tax surtax of 4% on income above $1M (total 9% — highest in New England)
  • Estate tax on estates above $2M with no portability for married couples
  • High cost of living especially Greater Boston
  • Property tax averages 1.14% — lower than CT but higher than national average
âš“

Connecticut Pros & Cons

+ PROS
  • Lower effective rate below ~$71K and above ~$2.2M (max 6.99% vs MA’s 5% or 9%)
  • Estate tax exemption of $15M (matches federal) vs MA’s $2M
  • No Millionaire Tax surtax
  • Generally lower housing costs than Greater Boston
− CONS
  • Progressive brackets make CT more expensive from ~$71K to ~$2.2M
  • Property tax averages 1.79% — significantly higher than MA’s 1.14%
  • Sales tax 6.35% (marginally higher than MA)
  • Higher cost of living in Fairfield County (NYC suburbs)
FAQ

Frequently Asked Questions

Is Massachusetts or Connecticut cheaper for income tax?

It depends on your income. Connecticut is cheaper up to roughly $71,000. Above that level, Massachusetts’ flat 5% is lower than Connecticut’s progressive brackets through most higher incomes. Massachusetts’ 4% Millionaire Tax surtax (9% combined, on income above $1,107,750) then pushes Massachusetts higher again — but Massachusetts actually stays cheaper than Connecticut even with the surtax until roughly $2.2 million, at which point Connecticut becomes the cheaper state once more.

What is Massachusetts’ Millionaire Tax and how does it work?

Massachusetts voters passed a constitutional amendment in 2022 adding a 4% surtax on annual income above $1,000,000 (a threshold adjusted annually for inflation: $1,107,750 for 2026). This is applied on top of the standard 5% flat rate, creating a 9% combined rate on income above that threshold. Connecticut has no equivalent surtax, capping out at 6.99%.

How do the estate taxes compare between Massachusetts and Connecticut?

Massachusetts has a state estate tax on estates above $2 million (as of 2026), with rates up to 16%. Critically, there is no portability between spouses under state law, so a married couple only gets one $2M exemption unless careful planning is done. Connecticut’s estate tax exemption equals the federal exemption, $15 million for 2026, with a 12% rate on the excess, making it far more favourable for wealthy families.

Which state has higher property taxes — Massachusetts or Connecticut?

Connecticut has significantly higher property taxes. The average effective rate in Connecticut is approximately 1.79% compared to Massachusetts’ 1.14%. On a $500,000 home, Connecticut costs about $8,950/year vs Massachusetts’ $5,700/year. This property tax difference adds to Connecticut’s total cost for mid-to-high earners who own homes.
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