DBA Filing in New Hampshire: Who Issues It, Cost & Steps
If you're trying to file a DBA (fictitious business name) in New Hampshire, the state is not who you file with. This is issued locally, and the rules change at the city line. Here's how to find the right counter, and what the process generally looks like once you do.
New Hampshire does not use the term 'DBA'-you file a Trade Name registration instead.
New Hampshire's Secretary of State handles trade name registration through their QuickStart system. There is no separate 'DBA filing' process; instead, you register a Trade Name if you want to operate under a name other than your legal business name.
- You can register a trade name directly through the Secretary of State's QuickStart online system.
“File Now Create a New Business File Annual Report Update a Business Special Marriage License File UCC forms Manage Business Filings Register A Trade Name Launch A Non-Profit”
https://quickstart.sos.nh.gov - Processing time for trade name filings is currently up to 5 business days.
“As of 9/14/26, processing time for business filings may run up to 5 business days.”
https://quickstart.sos.nh.gov - You can pay an additional $25 fee to expedite a pending trade name filing in person at the Secretary of State's office during business hours.
“Filings currently pending (status of HOLD) may be expedited in-person in our Customer Lobby (8:30am to 4:00pm M-F) for an additional fee of $25.”
https://quickstart.sos.nh.gov - If you cannot visit in person, registered agent service providers in Concord can advance the expedite fee on your behalf.
“If you are unable to visit the office in-person, there are local registered agent service providers in Concord who offer this service and can advance the fee on your behalf.”
https://quickstart.sos.nh.gov
Sources (each one opened and read on 2026-09-15)
- NH Quickstart: https://quickstart.sos.nh.gov
Who issues a DBA Filing in New Hampshire
This is a local permit. It is issued by your city or county, not by the state of New Hampshire. The state office listed underneath handles a related filing — it does not issue this permit.
- New Hampshire — the state business-filing office (Secretary of State in most states) (registers business entities)
https://sos.nh.gov
https://quickstart.sos.nh.gov
Where a DBA is filed varies more than almost any other filing on this site — county clerk in many states, the state business-filing office in others.
Finding your local office
Start with the city your address sits in — the relevant department is usually called Planning, Building, Community Development, or Business Licensing. If your address is unincorporated, the county performs that role instead. Calling the main switchboard and asking who handles this is usually faster than searching.
Starting point for anything else in New Hampshire: the state business portal, https://quickstart.sos.nh.gov. It is a starting point, not the issuer of this permit.
The general US process
This sequence is the shape the process takes across the US. It is not a list of New Hampshire requirements, and no step here should be read as one — the issuing office named above sets the actual requirements.
- Step 1: Find out where a DBA is filed where you are. County clerk in many states, the state business-filing office in others, and both in a few.
- Step 2: Search that register for the name you want.
- Step 3: File the statement — often called a fictitious business name or assumed name filing — and pay the fee.
- Step 4: Publish the filing in a newspaper if that jurisdiction requires publication. Several do; most do not.
- Step 5: File the proof of publication where publication was required.
- Step 6: Use the name consistently on marketing, invoices and the bank account.
What varies: county versus state filing, whether publication is required, the fee, and whether the filing expires.
Documents usually asked for
A typical list, not a New Hampshire checklist.
- Government-issued ID
- Legal business name (if an entity, not sole prop)
- Business address
Related permits in New Hampshire
DBA Filing in states bordering New Hampshire
Rules stop at the state line — same permit, each state bordering New Hampshire:
See DBA Filing in all 50 states & DC →
Frequently asked questions
Who issues a DBA filing in New Hampshire?
Your city or county — not the state.
How much does a DBA filing cost in New Hampshire?
We don't publish a New Hampshire figure we haven't verified. The typical US range is $10–$150. The office named above has the real number for your address.
How long does it take to get a DBA filing in New Hampshire?
Typical US processing is 1–30 days, and expedited handling is often available for a fee. The issuing office publishes its own turnaround, and that is the number to trust.
What is New Hampshire-specific on this page: the issuing office, 4 New Hampshire facts, each quoted off the government page beside it. Everything else — the numbered process, the document list, the cost and timeline — is the general US pattern, not a New Hampshire rule, and is labelled that way above. Requirements, fees and deadlines are set by the issuing office; confirm with it before you file or pay.