New Mexico New Business Registration Guide

Tax Agencies

• New Mexico Taxation and Revenue Department

• New Mexico Department of Workforce Solutions

Types of Tax

• Withholding Tax

• Workers’ Compensation Fee

• Unemployment Insurance Tax (UI)

New Mexico Withholding Tax and Workers' Compensation Fee

Registration Steps

1. Register for a New Mexico Business Tax Identification Number and Workers’ Compensation Fee
• Visit the New Mexico TAP Portal.
• Under Businesses, click Apply for a New Mexico Business Tax ID and complete the registration steps.
• During this registration, you will also enroll in the Workers’ Compensation Fee program.
• A TAP account will be created during the process. Log in post-approval at TAP.

2. Workers' Compensation Requirements
• All employers with 3 or more employees (including part-time, leased, or temporary) must carry Workers’ Compensation insurance.
• The fee is not the same as insurance coverage. Employers must still obtain a workers’ compensation insurance policy.
• More information: NM Workers Compensation Administration

Action Required:

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New Mexico Unemployment Insurance (UI)

Registration Steps

1. Register for a New Mexico UI Employer Account Number
• Employers must pay wages before registering.
• Go to the Department of Workforce Solutions UI Registration Page and click Register Now.

2. Create a UI System Login
• After receiving your Employer Account Number:
• Visit the UI System
• Click Employer Login
• Enter your UI credentials to access your account.

Third-Party Administrator (TPA) Access

• Go to the UI Login Page

• Click UI System Login

• Log in with your credentials

• Select Account Maintenance > TPA Authorization

• Click New, and enter Check’s TPA ID: 500002855

• Assign the following roles:
• Account Maintenance View Only
• Payments Update and Submit
• Employment Wage Detail Update and Submit

• Refer to the official TPA Authorization PDF Guide

Action Required:

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