Updated February 11, 2021
This article will cover:
- What information OnPay needs from you
- What state and local taxes and filings OnPay handles for Wisconsin employers
- Where you can find the tax account numbers needed
- How to authorize OnPay as a Third Party Administrator in Wisconsin
- Paying employees in other states?
Why is this important?
For employers who pay employees in Wisconsin, 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 Wisconsin tax payments for your company. Any penalties and interest that accrue from missed tax payments will be your company’s responsibility.
What information OnPay needs from you
Use this checklist to make sure you’ve covered everything required to set up your account as a Wisconsin employer so OnPay can accurately file and pay taxes on your behalf:
✔ |
To do: |
What is this? |
Make sure your business is registered with the Wisconsin Department of Revenue |
Allows your business to file and pay taxes in Wisconsin |
|
Make sure your business is registered with the Wisconsin Department of Labor |
Allows your business to pay required unemployment insurance in Wisconsin |
|
Provide OnPay with your Wisconsin Tax ID |
The employer identification number issued by the Wisconsin Department of Revenue |
|
Provide OnPay with your Wisconsin Unemployment ID |
A 6-digit number unique to your account with the Wisconsin Department of Labor |
|
Provide OnPay with your Wisconsin Unemployment (SUI) Rate |
A tax rate you receive annually from the Wisconsin Department of Labor |
|
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 Wisconsin employers
OnPay handles the filing of all state and local taxes for businesses in Wisconsin, including:
Type of Tax |
Form ID |
Form Name |
Frequency |
Withholding |
Form WT-6 (Filing) |
Wisconsin Withholding Deposit Report |
Semi-Monthly, Monthly, Quarterly |
Form WT-7 (Filing) |
Annual Reconciliation |
Annual * |
|
WT (Filing) |
Transmittal for Paper Forms W-2 |
Annual |
|
State W2 (Filing) |
Wage and Tax Statement |
Quarterly |
|
Unemployment |
Form UCT-101-E (Filing) |
Quarterly Contribution Report |
Quarterly |
Form UC-7823-E (Filing) |
Quarterly Wage Report |
Quarterly |
|
Other |
New Hire Report (Filing) |
Wisconsin 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 state of Wisconsin, you likely already have the IDs and online accounts needed for OnPay to process your tax filings.
If you are a new employer in Wisconsin, you will need to register your business with the Wisconsin Department of Revenue and Wisconsin Department of Labor. This must be completed for OnPay to be able to file and pay your Wisconsin taxes.
Withholding Tax Account Number
Existing Wisconsin Employer:
You can find your Withholding Tax Account Number on notices received from the Wisconsin Department of Revenue. If you cannot locate this document or account number, please call the Wisconsin Department of Revenue at (608) 266-2776 to request it.
New Wisconsin Employer: Register with the Wisconsin Department of Revenue
- Visit the One Stop Business portal and click “Start Your Business”.
- Complete their survey to determine the best way to register your business.
- You will be able to register for both Wisconsin Withholding and Unemployment Taxes
All Wisconsin Employers: Approve OnPay’s TPA access
- If your Business is already registered with the Wisconsin Department of Revenue, you will need to approve OnPay's pending request for 3rd party access. Once OnPay attempts to add your business, this request will be pending when you next log into your Wisconsin withholding account.
- If your Business has not yet registered with the WI Dept of Revenue, OnPay will need the Wisconsin Withholding Letter ID in order to add your business to our MyTax account.
Unemployment Account Number and Tax Rate
Existing Wisconsin Employer:
- You can find your Unemployment ID on the annual Tax Rate Notice received from the Wisconsin Department of Labor. It can also be found on your Quarterly Contribution and Wage Report.
- Your Unemployment Tax Rate can also be found on the annual Tax Rate Notice in box 2. Your rate will be in the range of 0% to 12% with a wage base of $14,000.
- Those in the construction industry or with an annual payroll over $500,000 should review this page to find their rate.
- If you're unsure of your rate, please call the Department of Workforce Development at 1-(414)-438-5395.
New Wisconsin Employer: Register with the Wisconsin Department of Labor
- Visit the One Stop Business portal and click “Start Your Business”.
- Complete their survey to determine the best way to register your business.
- You will be able to register for both Wisconsin Withholding and Unemployment Taxes
- If you're a new employer in Wisconsin, your rate will generally be in the range of 3.05% to 3.25% with a wage base of $14,000.
All Wisconsin Employers: Provide OnPay with your Internet Access Code
- Log into your DWD account and choose the following from the home page:
- Account Access
- Generate Access Key
- Select All
- Click Generate Key
- The generated key will appear in Red at the top left
- If you don’t have an Internet Access Code, check any Wisconsin notices or letters you’ve received to see if you already have one. If you need to create one, or retrieve yours, contact the Wisconsin Department of Labor to request it.
How to grant OnPay Power of Attorney in Wisconsin
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 Power of Attorney 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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