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Connecticut Department of Revenue Services Customer FAQ

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What is Connecticut Department of Revenue Services's Phone Number?

The question we are asked most often is about how to talk to Connecticut Department of Revenue Services customer service. Click here for contact information, email and chat options, getting a live person, wait times and more.
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Recent Connecticut Department of Revenue Services Customer Questions

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Filing Taxes

How do I file my state income tax return?

In Connecticut, taxpayers can file their state income tax returns either electronically through the online e-filing system or...
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What are the tax filing deadlines in Connecticut?

In Connecticut, individual and corporate tax filing deadlines generally align with federal dates, with individual returns due...
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What are the common mistakes made on tax returns?

Common errors on tax returns include incorrect personal information, miscalculated income or deductions, failure to sign the...
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Can I file an extension for my state tax return?

Taxpayers in Connecticut can request a six-month extension to file their state tax return using Form CT-1040 EXT. It is crucial...
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What penalties are associated with late tax filings?

The Connecticut Department of Revenue Services enforces penalties for late tax filings, which include a five percent penalty on...
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Tax Rates

What are the tax rates in Connecticut?

Connecticut employs a progressive income tax with rates ranging from 3 percent to 6.99 percent, based on income levels. Sales...
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What is the sales tax rate in Connecticut?

Connecticut imposes a standard sales tax rate of six and a half percent on most goods and services, with certain exemptions...
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What is the property tax rate in Connecticut?

Connecticut does not have a single property tax rate; instead, rates are set by individual towns based on local budgets,...
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What is the Connecticut use tax and how do I pay it?

The Connecticut use tax applies to items used in the state when sales tax has not been paid, often due to out-of-state...
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Tax Education

What are the tax deductions and credits available in Connecticut?

Connecticut provides various tax deductions and credits to ease residents' tax burdens. Notable options include a property tax...
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Is there assistance for low-income taxpayers?

Connecticut Department of Revenue Services offers support for low-income taxpayers, including the Connecticut Earned Income Tax...
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What resources are available for tax education in Connecticut?

Connecticut Department of Revenue Services offers various tax education resources for individuals and businesses, including an...
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How can I check the status of my tax refund?

To check a tax refund status in Connecticut, individuals should use the "Check Your Refund Status" tool on the Connecticut...
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How are changes in tax laws communicated to taxpayers?

The Connecticut Department of Revenue Services communicates tax law changes primarily through their website, official...
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