Employer Forms
Introduction

New Business Required Forms
Whether you’re starting a new business at the turn of the new year or looking forward to your first quarterly tax payment, depending on how your business is organized, you may have different tax requirements.
Form SS-4
Applying for an employer identification number (EIN) is an important step for businesses. To apply, you must use Form SS-4. Once you complete the form, you can submit it online, by mail, or by fax. You should receive your EIN within four weeks of submission.
Form 8655
Use this form to authorize a reporting agent to sign and file certain returns, make deposits and payments, receive duplicate copies of tax information, notices, and other communication, and provide IRS with information to aid in penalty relief determinations.
Common Employee Forms
Completing state and federal new employee forms is an important step in the hiring process. It is important to ensure all forms are completed accurately and submitted to the appropriate government agency in a timely manner.
Payroll Resource Packet
Everything you need for payroll best practices, our best Cello client resource.
Form(s) 1099
These forms are for independent contractors reporting income from self-employment earnings, interest, and more.
Form W-4
The W-4 form tells the employer the correct amount of federal tax to withhold from an employee's paycheck.
Form I-9
I-9 is used to verify an employee’s identity and to determine whether they are eligible to begin work for the company.
MICHIGAN
Form MI-W4
Employee's Michigan Withholding Exemption Certificate
DW-4
Employee's Withholding Certificate for City of Detroit Income Tax
OHIO
Form IT-4
Employee's Withholding Exemption Certificate
INDIANA
Form WH-4
Employee's Withholding Exemption and County Status Certificate
Form WH-47
Certificate of Residence
Form WH-4MIL
Annual Nonresident Military Spouse Earned Income Withholding Tax Exemption Form
ILLINOIS
Form IL-W4
Employee's Illinois Withholding Allowance Certificate
Form IL-W-5-NR
Employee's Statement of Nonresidence in Illinois
WISCONSON
Form WT-4
Employee's Wisconsin Withholding Exemption Certificate/New Hire Reporting
Form WT-4A
Worksheet for Employee Withholding Agreement
Form W-220
Nonresident Employee's Withholding Reciprocity Declaration
Form W-221
Nonresident Military Spouse Withholding Exemption
MINNESOTA
Form MWR
Reciprocity Exemption/Affidavit of Residency for Tax Year 2022
Form W-4MN
Minnesota Withholding Allowance/Exemption Certificate
IRS & Government Resources
The IRS and US Government provide a variety of resources including FAQs and helpful tools on many topics including taxes, government benefits, and other resources.
Social Security Number Verification
The Social Security Administration provides this resource to help you verify SSNs of current and potential employees.
Employer.gov Website
This site is from the Department of Labor to provide answers to commonly asked questions that employers might have.
IRS Withholding Calculator
Use this tool to estimate the federal income tax you want your employer to withhold from your paycheck.
IRS Business Resource Center
Resources for taxpayers who file Form 1040 or 1040-SR, Schedules C, E, F or Form 2106, and small businesses with assets under $10 million.
OSHA Regulations
OSHA's mission is to ensure that employees work in a safe and healthful environment by setting and enforcing standards and by providing training, outreach, education, and assistance. Employers must comply with all applicable OSHA standards.
Additional Resources

A Guide to Developing the HR Services That the Public Sector Needs
In this guide, we’ll explore the primary HR challenges that the public sector currently faces, and offer a range of actionable recommendations organizations can adopt to remain competitive in recruitment, hiring, retention, training, and core HR practices.

A Guide to Employee Termination
Whether an employee termination involves ending a contract early, a permanent layoff, or firing an employee for failure to fulfill job responsibilities, our termination guide provides step-by-step guidance on navigating the termination process.
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