New Company Registration for New Hampshire

Disclaimer: This article is not intended to be tax, legal, financial, or HR advice. Rules and regulations change over time and can vary by location. Consult with a lawyer, accountant, Tax, or HR expert for specific guidance.

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Register for Taxes with Middesk

Homebase has partnered with Middesk to make tax registration easier for you.

• Middesk can register you across all 50 states for withholdings/income tax (SIT) and unemployment insurance (SUI)
• Middesk will continue to support your ongoing compliance by processing and surfacing your state mail for your review
• Middesk offers registrations for select PFMLs and local jurisdictions as well

To get started, sign up here and check out this tutorial.

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State Unemployment Tax (UI)

Once wages are paid, employers should register with the New Hampshire Employment Security.  You will not be allowed to register more than 30 days in advance of your first date of employment.

Tax Agency: New Hampshire Employment Security

Obtaining a New Hampshire Employer Account Number

1. Go to NHES website website
2. Review information needed to register
3. Click next
4. Agree to electronic transaction and click next to complete registration steps
5. A Determination of Liability will then be mailed if applicable within 7-10 days with your state account number
6. A registration code will also be sent to you along with your New Hampshire Unemployment Employer account number via mail.  This must be provided to Check in order for Check to efile returns
7. Once you receive your account number and registration code, you can then create a username and password

Creating an Online Account

1. Go to NHUIS website  
2. Select “Register to create an employer account”
3. Enter your employer information requested and click next
4. Complete contact info and username and password
5. Complete security questions and answers and submit

Granting Third-party Administrator (TPA) Access

Employer must provide check with their registration code received via mail from the agency in order for Check to make payments on their behalf.

Important to Note

• Update your Homebase account with your New Hampshire Employer Account Number. Your NHES Employer Account Number is required for all New Hampshire interactions to ensure your account is accurate.
• Please call the NHES at 603-223-6100 for assistance with registration or with any questions.  Additionally, NHES offers a web tutorial to help set up username and password at NHES website.
• New Hampshire does not impose a withholding on payroll income tax
• Homebase uses a payroll partner, Check for backend payroll processing.