What payroll forms do employers need to file?

Payroll Tax Forms Employers Must File in Connecticut

Employers operating in Connecticut need to file specific payroll tax forms to comply with state and federal requirements. Proper filing ensures accurate tax withholding, reporting, and payment for employee wages.

Connecticut State Payroll Forms

• Form CT-W4: Employee’s Withholding Certificate for Connecticut income tax withholding. Employers collect this from employees to determine state tax withholding amounts.
• Form CT-941: Connecticut Employer’s Quarterly Reconciliation of Withholding. Employers file this quarterly to report total wages paid and state income tax withheld.
• Form CT-WH-160: Connecticut Annual Reconciliation of Withholding. This form summarizes annual wages and withholding per employee and is filed yearly.
• Form UC-2/UC-2A: Employer’s Quarterly Contribution and Wage Report for unemployment insurance. Required to report wages subject to state unemployment taxes.

Federal Payroll Forms Required in Connecticut

• Form W-4: Employee’s Withholding Certificate for federal income tax withholding.
• Form 941: Employer’s Quarterly Federal Tax Return. Reports federal income tax withheld, Social Security, and Medicare taxes.
• Form 940: Employer’s Annual Federal Unemployment (FUTA) Tax Return.
• Form W-2: Wage and Tax Statement. Employers provide this annually to employees and the Social Security Administration.
• Form W-3: Transmittal of Wage and Tax Statements. Submitted to the Social Security Administration along with W-2 forms.

Operational Tips for Payroll Compliance in Connecticut

• Maintain accurate employee records: Collect and update state and federal withholding forms promptly.
• Use payroll software or automation: Automate withholding calculations and form generation to reduce errors.
• File on time: Connecticut requires quarterly and annual filings; missing deadlines can result in penalties.
• Stay updated on tax rates: As of 2026, verify current withholding rates and unemployment insurance rates regularly.
• Coordinate federal and state filings: Ensure consistency between federal and Connecticut payroll tax reports to avoid audits.