Do I need an operating agreement for a single-member LLC in New Hampshire?

New Hampshire does not require or file an operating agreement, but a single-member LLC should still have one. It documents that the LLC is separate from you, which helps preserve the liability shield.

Single-Member LLC in New Hampshire (2026)

Q: How is a single-member LLC taxed in New Hampshire?

By default the IRS treats a single-member LLC as a disregarded entity, so profits are reported on the owner's federal return. For New Hampshire, the LLC is still a business entity that may owe the Business Profits Tax and Business Enterprise Tax if it exceeds the filing thresholds.

Q: What is the New Hampshire Business Profits Tax rate?

The Business Profits Tax rate is 7.5% for 2026. A business must file if its gross business income exceeds $109,000. The separate Business Enterprise Tax is 0.55% and applies above a $298,000 threshold.

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 6, 2026 · Last updated Aug 6, 2026

A New Hampshire single-member LLC is a disregarded entity for federal tax by default, so profits flow to the owner's Form 1040, while the LLC still shields personal assets. You file a $100 annual report by April 1, and the LLC may owe New Hampshire's 7.5% Business Profits Tax and 0.55% Business Enterprise Tax above state thresholds. New Hampshire has no general sales or wage income tax.

Quick Answer

Federal tax default: Disregarded entity - profits on the owner's Form 1040
Liability: Separate entity - shields the owner's personal assets
Annual report: $100, due April 1, to the NH Secretary of State
Business Profits Tax: 7.5% if gross business income exceeds $109,000
Business Enterprise Tax: 0.55% above a $298,000 threshold
Personal income tax: None - Interest & Dividends Tax repealed Jan 1, 2025

What a Single-Member LLC Is

A single-member LLC (SMLLC) is a limited liability company with exactly one owner. It combines the simplicity of a sole proprietorship with the liability protection of an entity. Legally, the LLC is separate from its owner, so business debts and lawsuits generally reach only the LLC's assets, not the owner's home or savings - the key advantage over operating as a sole proprietor. You create one in New Hampshire by filing a Certificate of Formation with the Secretary of State; see how to form an LLC in New Hampshire for the full process.

The most common confusion about SMLLCs is taxation. Because the LLC has one owner, the IRS does not tax it as a separate business by default. Instead it is "disregarded" for federal income tax, which we explain next. The liability shield and the tax treatment are two different things: you get the shield from state LLC law, and the disregarded-entity tax treatment from federal default rules. Compare structures in S-corp vs LLC and the general how to form an LLC guide.

For a solo New Hampshire owner, the SMLLC is usually the natural default: it is not much harder to run than a sole proprietorship, but it puts a legal wall between the business and your personal life. That wall is only as strong as the way you operate, though. If you treat the LLC's bank account like a personal wallet, mix funds, or sign contracts in your own name, a court can "pierce the veil" and hold you personally liable anyway. The formalities we describe below - separate finances, an operating agreement, and current state filings - are what keep the shield intact.

Disregarded Entity: How Federal Tax Works

By default, the IRS treats a single-member LLC as a disregarded entity. That means the LLC is ignored for federal income tax and its activity is reported directly on the owner's return - a sole owner reports business profit and loss on Schedule C with Form 1040, just as a sole proprietor would. The LLC does not file its own federal income tax return. Because there is no employer withholding on this income, the owner also owes self-employment tax of 15.3% on net earnings and generally makes quarterly estimated payments; see self-employment tax.

An SMLLC can instead elect to be taxed as a corporation, and many profitable owners later elect S-corporation status to reduce self-employment tax on a portion of profits. Even as a disregarded entity, the LLC needs its own federal EIN if it has employees or certain excise obligations, and most owners get one anyway to open a business bank account without using their Social Security number. An EIN is free from the IRS on Form SS-4. If you cannot get a Social Security number, an ITIN may be required for filing.

One subtlety catches new owners off guard: even though the LLC is disregarded for income tax, it is treated as a separate entity for employment and certain excise taxes. So if your SMLLC has employees, it reports and pays payroll taxes under its own EIN, not yours. And the disregarded status is only the federal default - it does not change the fact that New Hampshire looks at the LLC as a business organization for its state business taxes, covered below. Keeping these layers straight avoids surprises at filing time.

New Hampshire Annual Report and Registered Agent

Every New Hampshire LLC, including a single-member LLC, must file an annual report with the Secretary of State each year by April 1. The filing fee is $100, filed through the state's online business portal. The report confirms the LLC's name, principal office, and registered agent. Missing the deadline can lead to administrative dissolution, after which you must pay to reinstate the LLC before it can lawfully continue - so calendar April 1 every year. Learn more at New Hampshire annual report.

New Hampshire also requires every LLC to maintain a registered agent with a physical New Hampshire address to receive service of process and state notices. You can act as your own agent or hire a New Hampshire registered agent service. You name the agent when you form the LLC and keep the designation current; if the agent changes, you file an update with the Secretary of State. Keeping the agent and the annual report current is the core of staying in good standing.

Operating Agreement for a Single Owner

New Hampshire does not require an LLC to have an operating agreement, and the state does not file one. But a single-member LLC should still adopt an operating agreement. For a solo owner, its most important job is evidentiary: it documents that the LLC is a genuine separate entity, which helps preserve the liability shield if a creditor ever argues the LLC is just the owner's alter ego. Courts and banks look for these formalities.

A single-member operating agreement typically covers ownership (100% to you), management (member-managed by default), how profits are distributed, what happens on the owner's death or incapacity, and how the LLC can be dissolved. Pairing the agreement with clean separation of finances - a dedicated business bank account, no commingling of personal and business money, and contracts signed in the LLC's name - is what keeps the shield strong. The statutory defaults in New Hampshire's LLC Act fill gaps, but a written agreement lets you set your own terms. You do not file it with the state or record it anywhere; you simply sign it and keep it with your business records, updating it if ownership or management ever changes - for example, if you bring in a second member and the LLC becomes multi-member.

New Hampshire Business Taxes: BPT and BET

New Hampshire is famous for having no general sales tax and no tax on wages, and its Interest and Dividends Tax was fully repealed effective January 1, 2025, so there is no longer a broad personal income tax. However, New Hampshire reaches business income through two entity-level taxes administered by the Department of Revenue Administration, and an SMLLC is treated as a business organization for these even though it is disregarded federally.

The Business Profits Tax (BPT) is 7.5% for 2026 on taxable business profits, and a business must file if its gross business income exceeds $109,000. The Business Enterprise Tax (BET) is 0.55% on the enterprise value tax base (wages, interest, and dividends paid), and applies when gross business receipts or the enterprise value tax base exceeds $298,000. BET paid can be credited against BPT. Many small single-member LLCs fall below both thresholds and owe neither, but you should confirm current thresholds and rates with the Department of Revenue Administration because they are periodically adjusted. See business tax for how these interact with your federal return.

Two nuances matter for single-member owners. First, "gross business income" for the BPT is a gross figure, not net profit, so a business can cross the $109,000 filing threshold even in a year it earns little net income - meaning you may have to file a BPT return showing little or no tax due. Second, because the BET reaches wages and other compensation, an SMLLC that pays no wages and has modest receipts often owes no BET at all. If you later elect S-corporation treatment and run payroll, revisit both taxes, since paying yourself a salary changes the BET base. When in doubt, a New Hampshire CPA can confirm whether you have a filing obligation before the April deadlines.

Frequently Asked Questions

How is a single-member LLC taxed in New Hampshire?

By default the IRS treats it as a disregarded entity, so profits are reported on the owner's federal return. For New Hampshire, the LLC is still a business entity that may owe the Business Profits Tax and Business Enterprise Tax above the filing thresholds.

Does a New Hampshire single-member LLC file an annual report?

Yes. Every New Hampshire LLC files an annual report with the Secretary of State by April 1 each year. The filing fee is $100. Missing it can lead to administrative dissolution.

Does a single-member LLC protect personal assets in New Hampshire?

Yes. A single-member LLC is a separate legal entity, so it generally shields the owner's personal assets from business debts and lawsuits, provided you keep finances separate and follow formalities.

Does New Hampshire have a personal income tax on LLC owners?

No. New Hampshire has no tax on wages, and its Interest and Dividends Tax was fully repealed effective January 1, 2025. Business income is instead reached through the BPT and BET at the entity level.

What is the New Hampshire Business Profits Tax rate?

The BPT rate is 7.5% for 2026, and a business must file if gross business income exceeds $109,000. The separate Business Enterprise Tax is 0.55% and applies above a $298,000 threshold.

Do I need an operating agreement for a single-member LLC?

New Hampshire does not require or file one, but a single-member LLC should still have an operating agreement. It documents that the LLC is separate from you, which helps preserve the liability shield.

Sources

New Hampshire Secretary of State - Corporation, UCC & Securities Division (LLC formation and annual reports).
New Hampshire Secretary of State - Forms & Fees (annual report $100).
New Hampshire QuickStart - Business Search & Online Filing.
NH Department of Revenue Administration - Business Profits Tax (7.5%; $109,000 threshold).
NH Department of Revenue Administration - Business Enterprise Tax (0.55%; $298,000 threshold).
NH Department of Revenue Administration - Interest & Dividends Tax (repeal).
NH Department of Revenue Administration - Repeal of I&D Tax Now in Effect.
New Hampshire General Court - RSA 304-C, Limited Liability Companies.
New Hampshire General Court - RSA 77-A, Business Profits Tax.
IRS - Single Member Limited Liability Companies (disregarded entity).
IRS - Limited Liability Company (LLC).
IRS - Get an Employer Identification Number (free EIN).
IRS - Self-Employment Tax (15.3%).
Cornell Legal Information Institute - Limited Liability Company (LLC).
Cornell Legal Information Institute - Disregarded Entity.

LegalGlass provides general information for educational purposes and is not a law firm or a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; verify current requirements with the New Hampshire Secretary of State and Department of Revenue Administration before acting.