Get an EIN for Your New Hampshire LLC — Free at IRS.gov (2026)
Your EIN is your LLC's federal tax ID — required for banking and, if your LLC crosses New Hampshire's business-tax thresholds, for state registration too. It's 100% free at IRS.gov and takes about 15 minutes. Here's the New Hampshire sequence, including the no-SSN path.
Apply for your EIN free at IRS.gov — never pay a third party. With an SSN or ITIN, the online application takes about 15 minutes and issues your EIN immediately. Without one, file Form SS-4 by fax (≈4+ business days) or mail (≈4+ weeks). Apply after your Certificate is approved so IRS records match your exact legal name and formation date. Since New Hampshire has no personal income tax, there's no state income withholding to register for — but register with the NH Department of Revenue Administration if your LLC crosses the BPT or BET thresholds.
- Cost
- $0 — always free
- Where
- IRS.gov only
- Online time
- ~15 minutes
- Online issuance
- Immediate
- No SSN? (SS-4 fax)
- ~4+ business days
- After EIN
- NH DRA (if BPT/BET applies)
What an EIN Is (and Why Every New Hampshire LLC Needs One)
An EIN (Employer Identification Number) is the nine-digit federal tax ID the IRS assigns your business. You need one even with zero employees:
- Open a business bank account — every bank wants the EIN letter, your confirmed Certificate, and your operating agreement.
- Register with the NH Department of Revenue Administration — if your LLC crosses the Business Profits Tax or Business Enterprise Tax thresholds.
- File federal taxes — required regardless of New Hampshire's lack of personal income tax.
- Protect your SSN — put your EIN on W-9s instead of your personal number.
Never pay for an EIN. The IRS charges nothing. Sites charging $50–$300 for "EIN filing" resell a free government form, often styled to look official. The only site you need is IRS.gov.
Which Application Method Should You Use?
EIN Path Picker — New Hampshire Edition
2 questions · your exact path, timeline, and New Hampshire next step
The IRS online assistant runs Mon–Fri during posted hours and issues one EIN per responsible party per day. All methods are free.
The Online Application, Step by Step
Wait for approval first
Your EIN must match your final legal name and formation date. File through NH QuickStart before applying.
Go to the IRS EIN Assistant
IRS.gov → "Apply for an Employer ID Number." Choose "Limited Liability Company," then New Hampshire.
Enter members and responsible party
Member count sets your default classification — disregarded entity for one member, partnership for two-plus — and the responsible party provides their SSN/ITIN.
Complete in one session
The application times out after 15 idle minutes with no save. Keep your confirmed Certificate in front of you.
Download the CP 575 immediately
Your confirmation letter displays once. Banks will ask for it; a replacement means calling the IRS for Letter 147C.
No SSN? You Can Still Get an EIN
Non-US founders complete Form SS-4, write "Foreign" on line 7b, and submit by fax (~4+ business days) or mail (~4+ weeks). Line-by-line help in our guides to EINs without an SSN and foreign-owned LLCs. Foreign-owned single-member LLCs: remember Form 5472 — a $25,000 penalty applies even at zero income.
After You Get Your EIN — the New Hampshire Sequence
- Open your business bank account — CP 575, confirmed Certificate, operating agreement.
- Register with the NH Department of Revenue Administration — only if your LLC's gross business income or enterprise value crosses the BPT/BET thresholds.
- Calendar the Jan 1–Apr 1 window for your annual report.
Ahmad Adil's Take: the EIN is the one step where "cheap" and "right" are the same thing — free, from the source, in fifteen minutes. If any site or upsell asks you to pay for it, that tells you exactly how they make money. New Hampshire's follow-up step is a little different from most states: there's no automatic state income tax registration to set up, because there isn't one. Your only real decision is whether your LLC is likely to cross the BPT or BET thresholds — if you're genuinely unsure, a quick call to the Department of Revenue Administration early is cheaper than discovering a filing requirement after the fact.
- ✓Forms your New Hampshire LLC for $39 + the $100 state fee
- ✓Files online with the Secretary of State (NH QuickStart)
- ✓Free New Hampshire registered agent the first year
- ✓No upsells · No data selling · Privacy by Default
Disclosure: LLC School may earn a commission via this link, at no cost to you. See our advertising disclosure.
New Hampshire LLC — FAQ

Ahmad Adil is the founder and CEO of LLC School. The figures here — the $100 Certificate of Formation, the $100 annual report due April 1, and New Hampshire’s Business Profits Tax (7.5%) and Business Enterprise Tax (0.50%) — reflect current New Hampshire Secretary of State and Department of Revenue Administration guidance. This is educational content, not legal or tax advice.
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