Department of Labor and Regulation

Unemployment Insurance

Unemployment Insurance Tax - Employer Registration

All new and acquired businesses in South Dakota are required to register with the Unemployment Insurance (UI) Tax Unit. Registration is also required for an existing account if the entity or ownership of the business has changed (i.e., from a sole proprietorship to a partnership or a partnership to a corporation, etc.). To register, you must complete a registration form, Form 1, Employer's Report to Determine Liability. If you are a 501(C)(3) organization, complete Form 1NP. If you are a political subdivision, complete Form 1PS.

You have several options for registering:

  1. You may complete the registration process online using the Unemployment Insurance Employer Registration website. Learn more about this online option and access the Unemployment Registration website.

  2. You may download the appropriate form at Unemployment Insurance Tax Forms.

  3. You may obtain the forms by calling the Unemployment Tax Division at 605.626.2312.

To submit your completed form by mail, address it to:

Unemployment Insurance Division - Tax Unit
South Dakota Department of Labor and Regulation
P.O. Box 4730
Aberdeen, SD 57402-4730

Or fax it to:


*It is important that you complete all information on the registration form. Incomplete registrations will be returned. This will delay processing time and may cause your taxes to become delinquent.

Please also visit the South Dakota Department of Revenue website for general information on business tax requirements in the state.

Unemployment Insurance
420 South Roosevelt Street
Aberdeen, SD 57402-4730
Ph: 605.626.2301
Fax: 605.626.2322