New Hampshire sales tax permit / seller's permit.
If your business sells taxable goods or services in New Hampshire, you need a sales tax permit (also called a seller's permit). This guide explains nexus rules, post-Wayfair economic thresholds, the application process, and ongoing filing frequency.
Register for New Hampshire sales tax →When you need a New Hampshire sales tax permit
New Hampshire requires sales tax registration once your business has nexus in the state. Nexus can be:
How to register for New Hampshire sales tax
- 1Form your entity and obtain an EIN.
- 2Register with the New Hampshire Department of Revenue. Application asks for entity info, NAICS code, projected gross sales.
- 3Receive your New Hampshire permit number. Display it where required.
- 4File returns on the assigned cadence. Monthly, quarterly, or annually based on projected revenue.
Frequently asked questions
Do I need a New Hampshire sales tax permit?
How much does a New Hampshire sales tax permit cost?
What is the New Hampshire economic nexus threshold?
Do I need to register for sales tax if I sell on Amazon or Etsy in New Hampshire?
How often do I file New Hampshire sales tax returns?
What if I sell only digital products in New Hampshire?
Does File.Business handle New Hampshire sales tax registration?
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Five minutes per filing. State fee passed through at cost. Audit trail and deadline tracking included.
Disclosure. File.Business is a private business filing and compliance service. We are not a government agency and are not affiliated with the NH Secretary of State or any Secretary of State office. You may file directly with the NH Secretary of State. Information on this page is for general guidance only and is not legal, tax, or accounting advice. Fees and deadlines verified against the NH Secretary of State as of June 2026 and may change. For entity-specific guidance, consult a licensed New Hampshire attorney or CPA.