Telephone Numbers: South Dakota Business Tax Division: 1-800-829-9188 available from 8:00 a.m. to 6:00 p.m. CST Monday - Friday. Department of Labor, UI Tax Unit: Phone: 605-626-2312 Fax: 605-626-3347.

Official website of the state of South Dakota. Click Business in the top bar and choose an area of interest, such as the Business Tax page.

New Business Information. Business formation, state licensing, South Dakota payroll taxes.

Form DOL-UID-001, Employer's Report to Determine Liability for Unemployment Insurance tax.

DOL-UID-1NP, Registration Report to Determine Liability (for Unemployment Insurance tax) for Non-profit Organizations.

Unemployment taxes. Information, registration, FAQs.

DOL-UID-21, Employer's Quarterly Contribution, Investment Fee, and Wage Report (form for paying unemployment insurance tax). Fill in the reverse of this form if your business has closed or been sold.

New hire reporting. Information and an online reporting facility.

workerscompensation.com, a comprehensive resource for Workers' Compensation in South Dakota, including forms.