Taxes in Connecticut: Features and Advantages
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Business Registration in Connecticut
Information for LLC
Annual report filing deadline:
March 31
State fee for annual report:
$80.00
State fee for company formation:
$120.00
State fee for company dissolution:
$0.00
Additional state reports/fees:
No
Main Taxes in the State of Connecticut
Income Tax:
Connecticut applies a progressive personal income tax scale. As of 2024, rates range from 3% to 6.99%. The tax applies to all types of income: wages, business income, rental income, and capital gains. The state offers tax credits and deductions, but high rates make Connecticut one of the most *burdensome* states in terms of income tax, especially for high-income earners.
Sales Tax:
The base sales tax rate is 6.35% and applies to many goods and services, including commercial property rentals, digital products, certain services, and short-term car rentals. Higher rates (up to 9.35%) apply to specific categories such as car rentals or hotel services. Essential goods such as groceries and prescription medications are exempt.
Determining the taxable base and applying the correct sales tax rate can be complex and requires professional expertise and knowledge of state law. Our company provides services for obtaining a Sales Tax Certificate, as well as preparing and filing Sales and Use Tax Returns. We advise business owners on registration, calculation, and reporting.
Property Tax:
Connecticut does not levy property tax at the state level, but municipalities set their own rates, which are often among the highest in the country. The average effective rate is about 2.14%, particularly common in New York City suburbs.
Business Taxes:
C‑corporations are subject to corporate income tax at a rate of 7.5% – one of the highest in the U.S. Connecticut also introduced the Pass-Through Entity Tax (PET), mandatory for certain flow-through structures (S‑corps, LLCs), requiring careful tax planning. An Annual Report is mandatory for all companies – LLCs, corporations, and nonprofits. The filing deadline is annually by March 31. Businesses must also declare tangible personal property each year.
Excise Taxes:
The state levies excise taxes on alcohol, tobacco, fuel, electricity, transportation services, as well as hotel occupancy and car rentals. Separate licensing is required in some sectors.
Estate and Gift Tax:
Connecticut is one of the few states with an estate tax. As of 2023, it applies to estates valued over $12.92 million, with progressive rates up to 12%.
Favorable Tax Conditions in Connecticut:
Despite high tax rates, the state offers a stable business environment, developed infrastructure, and access to the Boston and New York markets. Opportunities for tax optimization through PET and federal deductions, as well as a lower sales tax rate compared to neighboring New York and Rhode Island.
Taxes in Connecticut Compared to Other States:
• High income tax, especially at the upper end.
• One of the highest property tax rates.
• Corporate tax higher than most states (7.5%).
• Mandatory Annual Report and Pass‑Through Entity Tax complicate reporting for small businesses.
• Estate tax applies, unlike most states.
• Sales Tax lower than New York, but no full rate unification.
The information on this page is for reference only and does not constitute guidance for action.

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