Indiana State Tax Guide

State tax registration guide for Indiana.

Need to register taxes in another state? Review the State Tax Guide section in our Tax Services Toolkit.

REQUIRED REGISTRATIONS

  • Unemployment Insurance: Indiana Department of Workforce Development

  • Income Tax Withholding: Indiana Department of Revenue (DOR)

 

REQUIRED INFORMATION

  • SIT ID # (format: XXXXXXXXXX XXX)

  • SIT payment frequency

  • SUI ID # (format: XXXXXX)

  • Current year SUI rate

  • Taxpayer ID (XXXXXXX)

  • Location (001)

Note: If Namely needs to back file a missing original return, or file an amended return, completion of SUI Agent authorization (instructions here) is required.

Required Client Information for Localities in Indiana:

  • Regardless of the locality, all Local Indiana Withholding taxes have the same ID # as SIT (listed above).

 

REGISTERING FOR UNEMPLOYMENT INSURANCE

New employers in the state of IN can register for both Unemployment Insurance and Income Tax Withholding with In Biz by visiting their website here .  First you will need to register your business with the Secretary of State; Step Two is to register with the Department of Workforce Development and Department of Revenue.
 
Once registered, you will receive an Unemployment Account Number (UI) and Unemployment Rate (%) which you will need to enter into Namely Payroll under Company > Tax (UI tax).  

If you've run payroll in Indiana in the past, you can find your Indiana SUTA Account Number on notices received from the Indiana Department of Workforce Development, the Quarterly Contribution Report (Form UC-1) or call the number below.


Contact

For additional information on registering for taxes, read Employment Tax Registration Overview.

 

REGISTERING FOR INCOME TAX WITHHOLDING  

New employers in the state of Indiana can register for Income Tax Withholding (and Unemployment Insurance) with In Biz by visiting their website here.  After reading the page, at the bottom click on Register Now and follow the prompts to complete the registration.

Tip:

Future-date registration is possible for this state's income tax withholding! 

Once registered, you will receive a Withholding Tax Account Number (WH) which you will need to enter into Namely Payroll under Company > Tax (WH tax).

If you've run payroll in Indiana in the past, you can find your Taxpayer Identification Number on notices that you have received from the Indiana Department of Revenue or call the number below.


Contact:

The Indiana Department of Revenue website provides additional information.

For additional information on registering for taxes, read Employment Tax Registration Overview.

 

 POWER OF ATTORNEY FORMS

Please note, Namely does not require a Power of Attorney for this state at this time. It is not required to file or remit payments on your behalf. If one is needed to resolve a tax matter, the tax notice team will request one from you at that time.

If a Power of Attorney is requested from you, you should email completed copies of the forms namelyPOA@Namely.com with the CID in the subject line for processing. We will update our system and maintain a copy of each form for record-keeping purposes

For additional information on Power of Attorney, read Completing the Power of Attorney Package.

 

STATE INCOME WITHHOLDING FORMS

Namely uploads Federal and State W-4 documents to your HRIS site for use during onboarding, or if you need to send W-4s to employees who need to make withholding adjustments.

TIP:

The most up to date W-4 documents can be found in the Namely section of the Document dropdown menu in Onboarding and Manage eSignature. 

Form Name: WH-4

Accepts Federal W-4: No

Comments: Each employee should complete a Form WH-4, Employees Withholding Exemption and County Residence Certificate, to be kept on file by the employer. The form, used to indicate the number of withholding allowances claimed by the employee, also serves to establish the employee's residency and county of principal work activity as of January 1 of each year for county adjusted gross income tax withholding purposes. An employee changing county of residence or county of principal work activity must provide a new WH-4 form by the next January 1. The state Form WH-4 must be used; the revenue department does not accept the federal Form W-4.

 

PAYROLL + TAX FACTS

Refer to this document for more information:2022-2023 Federal and State: Payroll and Tax Fact Sheet.