What taxes apply to a new small business?

Connecticut Small Business Taxes Overview

When starting a small business in Connecticut, understanding your tax obligations is crucial for smooth operations and compliance. Below is a breakdown of key taxes that typically apply to new small businesses in the state.

State Taxes for New Small Businesses

• Business Entity Tax: Connecticut imposes an annual business entity tax on certain business types. As of 2026, check the Connecticut Department of Revenue Services (DRS) for current rates and filing requirements.
• Corporate Business Tax: If your business is structured as a corporation or S corporation, you may be subject to Connecticut's corporate business tax. Rates vary based on income levels.
• Personal Income Tax: For sole proprietors and partnerships, business income is reported on personal income tax returns. Connecticut has a progressive state income tax system.
• Sales and Use Tax: If your business sells tangible goods or certain services, you must collect and remit Connecticut sales tax. Register for a sales tax permit and file returns regularly.
• Withholding Tax: If you have employees, you are required to withhold Connecticut state income tax from their wages and remit it to the state.
• Unemployment Insurance Tax: Employers in Connecticut must pay unemployment insurance taxes to fund state unemployment benefits.

Operational Considerations

• Business Registration: Register your business with the Connecticut Secretary of State and obtain a tax ID from the DRS to ensure proper tax reporting.
• Payroll Setup: Implement payroll systems that handle withholding taxes, unemployment insurance contributions, and comply with state reporting schedules.
• Recordkeeping: Maintain organized financial records to track taxable income, sales, and payroll taxes. This supports accurate tax filings and audits.
• Tax Filing Deadlines: Stay informed of quarterly and annual filing deadlines to avoid penalties.
• Automation: Use accounting software or platforms that integrate Connecticut tax rules to streamline compliance and reporting.

As of 2026, tax rates and requirements can change, so regularly consult the Connecticut Department of Revenue Services website or a qualified professional to stay updated on your small business tax obligations.