Updated March 7, 2023
This article will cover:
- What information OnPay needs from you
- What state and local taxes and filings OnPay handles for South Dakota employers
- Where you can find the tax account numbers needed
- How to authorize OnPay as a Third Party Administrator in South Dakota
- Paying employees in other states?
Why is this important?
For employers who pay employees in South Dakota, use this guide to learn what’s required to start running payroll while keeping compliant with state payroll tax regulations. Without this information, OnPay will be unable to file or deposit any South Dakota tax payments for your company. Any penalties and interest that accrue from missed tax payments will be your company’s responsibility. Click on the topic below to learn more.
What information OnPay needs from you
Use this checklist to make sure you’ve covered everything required to set up your account as a South Dakota employer so OnPay can accurately file and pay taxes on your behalf:
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✔ |
To do: |
What is this? |
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Make sure your business is registered with the South Dakota Department of Labor & Regulation |
Allows your business to pay required unemployment insurance in South Dakota |
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Provide OnPay with your South Dakota Reemployment Tax ID |
A 7-digit number unique to your account with the South Dakota Department of Labor Division of Reemployment Assistance |
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Provide OnPay with your South Dakota Unemployment (SUI) Rate |
A tax rate you receive annually from the South Dakota Department of Labor |
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Authorize OnPay as a Third Party Administrator |
For OnPay to be able to file and pay taxes on behalf of your business, you will need to submit a Power of Attorney form. |
What state and local taxes and filings OnPay handles for South Dakota employers
OnPay handles the filing of all state and local taxes for businesses in South Dakota, including:
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Type of Tax |
Form ID |
Form Name |
Frequency |
|
Unemployment |
Form 21 (Filing) |
South Dakota Quarterly Tax and Wage Report |
Quarterly/ Annual |
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Other |
New Hire Report (Filing) |
South Dakota Report of New Hires |
As required |
Where you can find the tax account numbers needed
If you are an existing employer who has previously run payroll in the South Dakota, you likely already have the IDs and online accounts needed for OnPay to process your tax filings.
If you are a new employer in South Dakota, you will need to register your business with the South Dakota Department of Labor & Regulation's Division of Reemployment Assistance. This must be completed for OnPay to be able to file and pay your South Dakota taxes.
Note: Reemployment Assistance is commonly known as State Unemployment Insurance (SUI).
Division of Reemployment Assistance Account Number and Tax Rate
Existing South Dakota Employer:
- Existing employers can find their Account Number on the following forms:
- Contribution and Investment Fee Rate Notice
- Quarterly Contribution Wage Report (Form DOL-UID-21)
- Your Reemployment Assistance Tax Rate can be found in the UI Box of the Tax Rate Notice
- Your Employer Investment Fee* can be found in the Investment Fee Box of the Tax Rate Notice
*Include your Employer Investment Fee tax rate when entering your South Dakota SUI tax rate in OnPay.
New South Dakota Employer: Register with the South Dakota Department of Labor & Regulation
- Register your business with the South Dakota Department of Labor & Regulation
- You can complete this registration online in a few minutes
- You may be prompted to create a General Login with the department, if needed
- You may also register by mail
- Download, print, and complete Form 1
- Submit your completed form by mail to:
Reemployment Assistance Division – Tax Unit
South Dakota Department of Labor and Regulation
PO Box 4730
Aberdeen SD 57402-4730 - You may also submit your completed form by fax to: 605.626.3347
How to authorize OnPay as a Third Party Administrator in South Dakota
OnPay works with government entities on your behalf, reporting new hires to state labor departments, calculating tax rates, and filing financial reports. To do this effectively, you will need to add OnPay as your third party agent by following the instructions in this article.
Paying employees in other states?
If you operate in multiple states or just have employees working from home across a state line, it's important to file the correct state forms for those workers. See what forms we file in the states where you pay employees.
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