What records should businesses keep for payroll taxes?

Payroll Tax Recordkeeping Requirements in South Dakota

Maintaining accurate payroll tax records is essential for South Dakota businesses to ensure compliance with state and federal tax regulations. Proper recordkeeping supports timely tax filings, audits, and employee inquiries.

Key Payroll Tax Records to Keep

• Employee Information: Maintain records of employee names, addresses, Social Security numbers, and Form W-4 withholding allowances.
• Payroll Registers: Document each pay period’s gross wages, hours worked, pay rates, and deductions for taxes and benefits.
• Tax Withholdings: Track federal income tax, Social Security, Medicare, and South Dakota withholding amounts deducted from employee paychecks.
• Employer Tax Contributions: Record employer-paid payroll taxes such as Social Security, Medicare, Federal Unemployment Tax Act (FUTA), and South Dakota Unemployment Insurance taxes.
• Tax Filings and Payments: Keep copies of all payroll tax returns, filings, and payment confirmations submitted to state and federal agencies.
• Timekeeping Records: Maintain accurate records of employee work hours and leave to support wage calculations and compliance with labor laws.
• Benefit and Deduction Documentation: Document any voluntary or involuntary deductions including health insurance, retirement plans, and wage garnishments.

Retention Period and Best Practices

As of 2026, South Dakota businesses should retain payroll tax records for at least four years from the date the tax becomes due or is paid, whichever is later. This aligns with IRS recommendations and supports state audit requirements.

Implementing automated payroll systems can improve accuracy and streamline recordkeeping. Regularly review records to ensure completeness and compliance with South Dakota Department of Labor and Regulation guidelines.