IRS Instruction 8973 – IRS Forms, Instructions, Pubs 2026 – In the complex world of employment taxes and payroll management, Certified Professional Employer Organizations (CPEOs) play a crucial role in helping businesses streamline their operations. One key document in this process is IRS Form 8973, also known as the Certified Professional Employer Organization/Customer Reporting Agreement. This form ensures proper notification to the IRS about service contracts between CPEOs and their customers. Whether you’re a business owner partnering with a CPEO or a tax professional navigating compliance, understanding the instructions for Form 8973 is essential for accurate reporting and avoiding penalties.
This article breaks down the purpose, filing requirements, and step-by-step guidance for IRS Form 8973 based on official IRS guidelines. We’ll cover everything from definitions to renewal processes, helping you stay compliant in 2026 and beyond.
What Is IRS Form 8973 and Its Purpose?
IRS Form 8973 is used by Certified Professional Employer Organizations to notify the Internal Revenue Service (IRS) about the start, end, or correction of a service contract with a customer. The form identifies the tax returns (such as Forms 940, 941, or 943) that the CPEO will file for wages or compensation paid to employees performing services for the customer. It also includes a consent section allowing the IRS to disclose relevant tax information from the CPEO’s returns to the customer.
The primary purpose of Form 8973 is to establish clear responsibility for employment tax reporting under a CPEO contract or service agreement. This helps ensure that wages, withholdings, and payments are handled correctly, with the CPEO often assuming sole liability for taxes on remuneration paid to covered employees. For businesses, this form formalizes the relationship with a CPEO, which can simplify payroll and tax obligations.
Key benefits include:
- Streamlined tax filing for customers.
- Potential tax credits and deductions preserved through proper CPEO certification.
- Protection against dual liability for employment taxes.
Key Definitions Related to Form 8973
To file Form 8973 correctly, it’s important to understand the terminology used in the instructions:
- Certified Professional Employer Organization (CPEO): An entity certified by the IRS under section 3511 to handle employment taxes for customers.
- Service Contract: This refers to either a CPEO contract under section 7705(e)(2) or a service agreement under Regulations section 31.3504-2(b)(2). A CPEO contract involves the CPEO assuming responsibilities like wage payments, tax withholding, employee benefits, and hiring/firing.
- Customer: Any business or entity entering into a service contract with a CPEO.
- Work Site Employees: Employees where at least 85% of the individuals providing services at a customer’s work site are covered by the CPEO contract.
- Related Party: A customer with a specified relationship to the CPEO, such as ownership ties under sections 267(b) or 707(b) with a 10% threshold.
- Provider of Employment-Related Services: A customer that offers payroll, tax administration, or compliance services to others.
Note: If a customer has appointed the CPEO as an agent via Form 2678 under Regulations section 31.3504-1, Form 8973 is not required, as this setup doesn’t qualify as a CPEO contract or service agreement.
Who Must File Form 8973?
The CPEO is primarily responsible for filing Form 8973 to report the start or end of a service contract or to make corrections. Customers may optionally file to notify the IRS of a contract’s end, but this is not mandatory.
- For Contract Starts: The CPEO must file, with input from the customer on certain parts.
- For Contract Ends: The CPEO is required to file; customers can file separately if desired.
- Corrections: Either party can initiate, but the CPEO typically handles submission.
- Newly Certified CPEOs: Have up to 6 months from certification to file for existing contracts.
Businesses using CPEOs for payroll services, especially those in industries like staffing or HR outsourcing, should ensure their CPEO handles this filing promptly.
When and How to File IRS Form 8973?
Filing Deadlines
- General Rule: File within 30 days of the service contract’s start or end.
- New CPEOs: 6 months from certification notice for existing customers.
- Consent Renewal: Before the end of the last period on the prior consent if the contract continues (covers up to 3 years or 12 quarters).
- Corrections: Submit as soon as errors are identified, such as incorrect start dates. If notified by IRS of an error, correct within 15 days.
Filing Method
Mail the completed form to:
Department of the Treasury
Internal Revenue Service
Ogden, UT 84201-0089
Use a 12-point Courier font for fillable PDFs. Dates should be in MM/DD/YYYY format. The CPEO must provide the customer with a copy of the fully signed form.
For electronic signatures or automated processes (e.g., through platforms like Justworks), ensure compliance with IRS rules.
Step-by-Step Instructions for Completing Form 8973
Form 8973 has six parts plus a consent section. Here’s a breakdown:
Part 1: Reason for Filing
- Check the box for start, end, or correction.
- Enter the contract date (e.g., when the CPEO contract was signed; cannot predate CPEO certification).
Part 2: Customer Information
- Provide EIN, legal name, trade name, and address.
- Check boxes for forms the CPEO will file (e.g., Form 941 for quarterly taxes). Specify if reporting all or some wages.
Part 3: CPEO Information
- Enter CPEO’s EIN, name, trade name, and U.S. physical address.
Part 4: Customer Relationship Information
- Answer yes/no questions about the contract type, if the customer is a service provider, related party, or if exemptions apply.
Parts 5 and 6: Signatures
- Customer signs Part 5 (required for starts).
- CPEO signs Part 6 under penalties of perjury. If a customer can’t sign (rare cases), attach a statement explaining efforts made.
CPEO Consent to Disclosure of Tax Information
- Required for starts; lists specific forms, years/periods (up to 3 years/12 quarters).
- Renew by mailing a new consent form.
For transfers of contracts (e.g., to a CPEO affiliate), file separate forms for end and start.
Reporting Requirements and Attachments
CPEOs must attach Schedule R to aggregate filings (e.g., on Form 941) to allocate taxes per customer. Use the CPEO’s EIN for deposits and payments.
If reporting partial wages, clearly indicate this in Part 2 to avoid confusion.
Penalties for Non-Compliance
Failure to file timely, provide accurate information, or renew consents can result in penalties. CPEOs risk certification suspension or revocation for repeated issues. Customers may face fines for fraudulent submissions.
Recent Updates and Revisions to Form 8973
The form was last revised in December 2023, while instructions date back to December 2018 with no major changes noted as of February 2026. Always check IRS.gov/Form8973 for the latest developments, including any legislative impacts.
For CPEO maintenance rules, refer to Revenue Procedure 2017-14 for detailed reporting obligations.
FAQs About IRS Form 8973
1. What if the service contract start date is incorrect?
Correct it via a new Form 8973 within 15 days of IRS notification.
2. Can customers file Form 8973 independently?
Yes, for contract ends, but CPEOs handle most filings.
3. How does Form 8973 affect tax liability?
Under a CPEO contract, the CPEO is solely liable for taxes on covered wages, protecting customers.
For more details, visit the IRS CPEO page or consult a tax advisor. Staying informed on IRS Form 8973 instructions ensures smooth compliance for CPEOs and their customers alike.