Here's Who Pays The Most In CT Income Tax: Town-By-Town List

CONNECTICUT — Fairfield County towns led the majority of the top 10 slots for total state income tax paid for tax year 2020.

Greenwich taxpayers paid more than $900 million in state income tax and pass through entity tax in 2020, which is the most recent tax year available. That was more than double Stamford, which is second on the list for total paid; Stamford’s population is more than double Greenwich’s.

Eight out of the top 10 municipalities that paid the most in income taxes were in Fairfield County, according to data from the state Department of Revenue Services.

Seven out of the top 10 were in Fairfield County for the top average tax paid per return and per capita tax paid.

Personal income taxes make up about half of the state’s general fund revenue. The pass through entity tax was about 6.5 percent of general fund revenue in 2020 and 7.5 percent in 2021, according to the Office of the State Comptroller. The sales and use tax was 22.5 percent of the state budget in 2020.

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Connecticut revamped its pass-through entity tax system in 2018 in response to the federal $10,000 limit on state and local tax (SALT) deductions. Pass-through entity taxes are generally paid by smaller businesses when an owner or owners pays taxes through personal tax returns. Gov. Dannel Malloy signed a bill into law that established a pass-through entity tax that was offset by a personal income tax credit. The credit amount was reduced starting in tax year 2019.

Fairfield County cities and towns dominate most of the top 10

The top 10 towns by total (income tax plus pass through tax credit claimed) are:

1. Greenwich: $916,372,895
2. Stamford: $406,126,633
3. Darien: $285,743,758
4. Westport: $264,713,486
5. Fairfield: $255,469,783
6. New Canaan: $230,056,400
7. West Hartford: $224,039,635
8. Norwalk: $180,453,967
9. Glastonbury: $153,488,988
10. Ridgefield: $130,184,495

The top 10 by income taxes paid per capita (total estimated population of town in 2020):

1. Greenwich: $14,431
2. Darien: $13,274
3. New Canaan: $11,165
4. Lyme: $10,108
5. Westport: $9,758
6. Weston: $6,285
7. Wilton: $6,251
8. Avon: $5,501
9. Woodbridge: $5,254
10. Ridgefield: $5,206

Top 10 by average tax paid per return:

1. Greenwich: $34,971
2. Darien: $34,728
3. New Canaan: $28,880
4. Lyme: $25,536
5. Westport: $23,327
6. Weston: $16,854
7. Wilton: $15,722
8. Ridgefield: $12,731
9. Avon: $12,056
10. Woodbridge: $12,008

Full town-by-town list