Idaho charges $100 to form an LLC; New Hampshire charges $100. Day-one sticker price is only part of the story, since most of the real cost comes from the annual obligations that stack up each year you keep the LLC open.

Over a rolling three-year window, Idaho runs about $300 less in total state fees than New Hampshire. Whether that gap matters depends on whether you actually operate in one of these states or are weighing a non-resident filing.

On speed, Idaho typically clears standard online filings faster than New Hampshire. Both states offer expedited tiers at an additional cost for filers on tight timelines.

For most small operators the choice is not really between these two states at all. It is between forming where the business actually operates and trying to route through a non-resident filing. The data below shows what each option actually costs.

Formation filing fee
Idaho $100
New Hampshire $100
Tied
Year 1 total estimate
Idaho $200
New Hampshire $300
Idaho saves $100
Ongoing per year
Idaho $100
New Hampshire $200
Idaho saves $100
3-year total
Idaho $400
New Hampshire $700
Idaho saves $300

Key differences at a glance

  • Idaho is $100 per year cheaper to maintain ($100 vs $200).
  • New Hampshire has no state individual income tax; pass-through LLC income flows to members without a state layer. The other state does tax at the member level.

Where each state fits

For most filers, forming in the state you actually operate from is the right call. The side-by-side below shows where the two states meaningfully diverge.

What each state offers that the other does not

Only New Hampshire

  • No state income tax
  • No state sales tax

Both states

  • Online filing
  • Paid expedited tier
  • No entity-level franchise or LLC tax
  • No publication requirement
  • Operating agreement not statutorily required

Three-year cost, side by side

Rough estimate of the state-facing cost to form and keep an LLC through three years. Both totals include a $100 per year registered-agent estimate.

Idaho New Hampshire
Year 1
$200
$300
Year 2
$300
$500
Year 3
$400
$700

Running total includes the one-time filing fee and annual ongoing costs (report fee or franchise tax plus a $100/year registered agent estimate).

What it costs under your specific situation

The table below runs the same LLC through four common scenarios. "Non-resident" rows assume a typical home-state foreign LLC registration adds about $200 per year of stacked cost; the real number depends on which state you live in and ranges from $50 to over $800 depending on jurisdiction.

Scenario Year 1 Each year after 3-year total
You live in Idaho, business operates there
No foreign LLC registration needed. You pay Idaho fees only.
$200 $100 $400
You live in New Hampshire, business operates there
No foreign LLC registration needed. You pay New Hampshire fees only.
$300 $200 $700
Non-resident forming in Idaho with operations elsewhere
You pay Idaho's fees plus a typical home-state foreign LLC registration of about $200 per year.
$400 $300 $1,000
Non-resident forming in New Hampshire with operations elsewhere
You pay New Hampshire's fees plus a typical home-state foreign LLC registration of about $200 per year.
$500 $400 $1,300

Idaho vs New Hampshire: full comparison

Dimension Idaho New Hampshire
Online filing
Can you file the formation document online?
Yes Yes
Online approval time
Standard, non-expedited
7 business days 10 business days
Expedited option
Paid fast-track filing
$40 $25
Annual report
Required in addition to tax
Required, $0 Required, $100
State-imposed annual tax
Franchise, privilege, or LLC tax minimum
None None
State income tax
On pass-through LLC income at member level
Yes No
Publication requirement
Newspaper publication after formation
No No
Operating agreement
Required by state statute
Recommended, not required Recommended, not required
Foreign LLC fee
Cost to register as a foreign LLC in this state
$100 $100
State sales tax
General statewide rate
6.0% None

Taxes in Idaho and New Hampshire

How each state handles entity-level tax on LLCs. Pass-through classification means member-level income tax also applies at each member's residence state.

Idaho tax

No entity-level franchise tax on LLCs. State income tax applies to member-level pass-through income. Corporate rate 5.3%.

New Hampshire tax

No entity-level franchise tax on LLCs. No state income tax. Corporate rate 7.5%.

Ongoing compliance

The recurring filings each state requires after formation.

Idaho

Annual report $0, due on your anniversary month. Registered agent required in Idaho.

New Hampshire

Annual report $100, due 04/01 each year. Registered agent required in New Hampshire.

Formation process, side by side

What actually happens from the moment you start filing to the moment you're in good standing. Use this as a checklist.

Idaho

  1. Check business-name availability on the Idaho entity search.
  2. Appoint a registered agent with a physical Idaho street address.
  3. File Certificate of Organization Limited Liability Company for $100.
  4. Wait for approval. Online typically 7 business days. Paid expedite from $40.
  5. Adopt an operating agreement (recommended, not required by Idaho statute).
  6. Apply for a federal EIN (free from the IRS).
  7. Open a business bank account to separate personal and business finances.
  8. File your first annual report and pay $0 when it comes due.

New Hampshire

  1. Check business-name availability on the New Hampshire entity search.
  2. Appoint a registered agent with a physical New Hampshire street address.
  3. File Certificate of Formation (Form LLC-1) for $100.
  4. Wait for approval. Online typically 10 business days. Paid expedite from $25.
  5. Adopt an operating agreement (recommended, not required by New Hampshire statute).
  6. Apply for a federal EIN (free from the IRS).
  7. Open a business bank account to separate personal and business finances.
  8. File your first annual report and pay $100 when it comes due.

Before you pick either state

A few things that apply no matter which state you choose. These trip up enough first-time filers that they're worth stating explicitly.

Registered agent is non-negotiable. Both Idaho and New Hampshire (and every other US state) require every LLC to designate a registered agent with a physical street address in the state of formation. You can serve as your own agent if you live in the state; otherwise a commercial agent runs $50 to $125 per year. Using your own home address makes it part of the public record.

Forming elsewhere does not escape your home state's tax. If you live and operate a business from your home state, forming the LLC in Idaho or New Hampshire does not avoid your home state's income tax. The moment you transact business at home, your home state requires a foreign LLC registration, and state tax liability follows your residence regardless of where the entity sits on paper.

EIN applications are free. The IRS issues Employer Identification Numbers directly at no cost. Any service charging you to "get your EIN" is reselling a free form submission. Single-member LLCs with no employees technically don't need one for federal tax, but nearly every bank requires an EIN to open a business account.

Operating agreement matters more than the state you pick. A well-drafted operating agreement governs member ownership, management, profit splits, buy-sell terms, and dissolution. Without one, your LLC runs on the state's default rules, which are rarely what you want. California, Maine, Missouri, and New York require a written one by statute; every other state treats it as strongly recommended.

Agency contacts

Idaho Secretary of State - Business Services Division

Website
sos.idaho.gov
Phone
(208) 334-2301
Mail
Office of the Secretary of State, 450 N 4th Street, PO Box 83720, Boise, ID 83720-0080
Office
450 N 4th Street, Boise, ID 83702
Hours
8:00 AM to 5:00 PM Mountain, Monday to Friday

New Hampshire Secretary of State, Corporation Division

Website
www.sos.nh.gov/corporations-0
Phone
(603) 271-3246
Email
corporate@sos.nh.gov
Mail
Corporation Division, 107 North Main Street, Room 204, Concord, NH 03301-4989
Office
State House, 107 North Main Street, Room 204, Concord, NH 03301
Hours
8:00 AM to 4:30 PM Eastern, Monday to Friday

Idaho State Tax Commission

Website
tax.idaho.gov
Phone
(208) 334-7660
Mail
Idaho State Tax Commission, PO Box 36, Boise, ID 83722-0410
Office
11321 W Chinden Blvd, Building 2, Boise, ID 83714
Hours
8:00 AM to 5:00 PM Mountain, Monday to Friday

New Hampshire Department of Revenue Administration

Website
www.revenue.nh.gov
Phone
(603) 230-5000
Mail
Governor Hugh Gallen State Office Park, 109 Pleasant Street (Medical and Surgical Building), Concord, NH 03301
Office
109 Pleasant Street, Concord, NH 03301
Hours
8:00 AM to 4:30 PM Eastern, Monday to Friday

Frequently Asked Questions

  • Is it cheaper to form an LLC in Idaho or New Hampshire?

    Formation fees are identical: $100 in both states. The year-over-year cost is where they differ. Idaho runs $100 per year after formation, New Hampshire runs $200.

  • Can I form an LLC in Idaho if I live in New Hampshire?

    Yes, but your New Hampshire business will almost certainly need to register as a foreign LLC in New Hampshire too, which means paying New Hampshire's foreign registration fee and any ongoing New Hampshire obligations on top of the Idaho ones. The "form elsewhere to save" math usually doesn't work for operating businesses; it only works when you have no physical operations tied to any specific state.

  • How long does it take to form an LLC in Idaho vs New Hampshire?

    Idaho online: 7 business days; New Hampshire online: 10 business days. Idaho offers paid expedite from $40. New Hampshire offers paid expedite from $25.

  • Which state has lower taxes for an LLC, Idaho or New Hampshire?

    Idaho: state income tax applies to member-level pass-through income, no entity-level franchise or LLC tax. New Hampshire: no state income tax, no entity-level franchise or LLC tax.

  • Do both states require a registered agent?

    Yes. Every US state (and DC) requires every LLC to maintain a registered agent with a physical street address in the state. Idaho and New Hampshire both have this requirement. You can serve as your own agent if you live in the state; most out-of-state filers use a commercial agent for $50 to $125 per year.

  • Which state should I pick if I run an online business from home?

    Form in the state you actually live in. Your home state's Department of Revenue treats your residence as nexus regardless of where the LLC is filed, which means you owe state income tax there anyway. Forming in Idaho or New Hampshire to escape your home state's tax doesn't work; it adds paperwork. The non-resident filings make sense when you genuinely operate nowhere in particular: international founders, purely passive holding entities, or real-estate LLCs owning property in other states.

Full state guides

More Idaho and New Hampshire comparisons

Sources

  • Filing fee: sos.idaho.gov/CORP/forms/LLC/LLC%20Cert%20org.pdf · verified April 21, 2026
    Idaho SoS Certificate of Organization Limited Liability Company form (Title 30, Chapters 21 and 25, Idaho Code): base filing fee is $100.00. Paper filings add a $20.00 manual processing fee, bringing the paper total to $120.00. Online filings through SOSBiz are the $100 base rate.
  • Expedited filing: sos.idaho.gov/CORP/forms/LLC/LLC%20Cert%20org.pdf · verified April 21, 2026
    Certificate of Organization instructions: expedited service adds $40.00 (8-hour); same-day service adds $100.00. Recording the cheapest expedited tier (8-hour, $40) as the default expedited fee.
  • Foreign LLC registration fee: sos.idaho.gov/business-forms/ · verified April 21, 2026
    Foreign LLC Foreign Registration Statement base filing fee is $100.00 online through SOSBiz; paper filings add the $20 manual processing fee for a $120 paper total.
  • Operating agreement requirement: legislature.idaho.gov/statutesrules/idstat/Title30/T30CH25/ · verified April 21, 2026
    Idaho Uniform Limited Liability Company Act, Idaho Code Title 30, Chapter 25, does not require a written operating agreement. The Certificate of Organization instructions explicitly state: 'Please do not attach operating agreements. They are not filed with this office.' (Idaho Code Section 30-25-201(C)).
  • Publication requirement: sos.idaho.gov/business-forms/ · verified April 21, 2026
    Idaho Uniform LLC Act and SoS filing instructions contain no publication requirement for LLCs.
  • Annual report fee: sos.idaho.gov/annual-report-help/ · verified April 21, 2026
    Idaho annual report filing fee is $0 for online filing through SOSBiz. Paper annual report filings incur the $20 manual processing fee. Due by the end of the anniversary month; administrative dissolution follows 60 days of non-filing.
  • Franchise tax: tax.idaho.gov/ · verified April 21, 2026
    Idaho State Tax Commission imposes no franchise tax on LLCs. C-corps (including LLCs electing C-corp treatment) pay the 5.3% corporate income tax with a $20 minimum; this is an income tax, not a franchise tax.
  • Corporate income tax rate: tax.idaho.gov/pressrelease/whats-new-for-2025-income-tax-returns/ · verified April 21, 2026
    Idaho corporate income tax rate reduced to 5.3% (flat) effective retroactive to January 1, 2025, per House Bill signed in 2025. Previous rate was 5.695%. The 5.3% rate continues in 2026. Corporate minimum tax is $20. Idaho individual rate is also a flat 5.3%.
  • Sales tax rate: tax.idaho.gov/taxes/sales-use/ · verified April 21, 2026
    Idaho statewide sales and use tax rate is 6.0%. A small number of resort cities may impose local option sales taxes, but there is no general local sales tax.
  • Business name search: sosbiz.idaho.gov/search/business · verified April 21, 2026
    Idaho SOSBiz business entity search. Confirm name availability before filing Certificate of Organization (Idaho Code Section 30-21-301 governs LLC name requirements).
  • Online filing portal: sosbiz.idaho.gov/ · verified April 21, 2026
    Idaho SOSBiz is the online business filing portal. Requires free account. Online filings bypass the $20 manual processing fee that applies to paper submissions.
  • Filing fee: www.sos.nh.gov/sites/g/files/ehbemt561/files/documents/2023-12/form_ll… · verified April 21, 2026
    New Hampshire Form LLC-1 Certificate of Formation: filing fee of $100 payable to State of New Hampshire. Online filing through NH QuickStart adds a $2 electronic processing surcharge (total $102). In-person walk-in filings carry an additional $25 expedite fee.
  • Expedited filing: sos.nh.gov/corporation-ucc-securities/corporation/forms-and-fees · verified April 21, 2026
    New Hampshire Secretary of State Corporation Division: expedited service is available in person in the Customer Lobby for an additional $25 fee, providing next business day processing. Not offered for standard online or mail filings. Recorded the $25 walk-in tier.
  • Annual report fee: www.sos.nh.gov/corporations-0/file-annual-report · verified April 21, 2026
    New Hampshire LLC annual report fee: $100 by mail or $102 online (includes $2 e-processing surcharge). Due April 1 each year. $50 late penalty applies if not filed by April 1. Filed through NH QuickStart.
  • Foreign LLC registration fee: www.sos.nh.gov/sites/g/files/ehbemt561/files/documents/2023-11/form_fl… · verified April 21, 2026
    New Hampshire Form FLLC-1 Application for Foreign Limited Liability Company Registration: filing fee of $100. Matches the domestic Certificate of Formation fee.
  • Operating agreement requirement: law.justia.com/codes/new-hampshire/title-xxviii/chapter-304-c/section-… · verified April 21, 2026
    RSA 304-C:40 Form of Operating Agreement: an operating agreement may be written, oral, or implied by course of dealing or otherwise. New Hampshire does not require LLCs to adopt a written operating agreement. Recorded as not required.
  • Publication requirement: gc.nh.gov/rsa/html/nhtoc/nhtoc-xxviii-304-c.htm · verified April 21, 2026
    New Hampshire RSA Chapter 304-C contains no newspaper publication requirement for LLC formation. Not required.
  • Corporate income tax rate: www.revenue.nh.gov/taxes-glance/business-taxes · verified April 21, 2026
    New Hampshire Business Profits Tax (BPT) rate is 7.5% for taxable periods ending on or after December 31, 2023, and continuing for 2026 per NH DRA. This is the state's functional corporate income tax rate. Not combined with the 0.55% Business Enterprise Tax (BET), which is captured separately in taxes.notes per the playbook's maxCorporateRate = income-only rule.
  • Sales tax rate: www.revenue.nh.gov/ · verified April 21, 2026
    New Hampshire imposes no general state sales tax. A 9% Meals and Rooms (Rentals) Tax applies to prepared food, hotel lodging, and motor vehicle rentals, but no broad retail sales tax exists.
  • Business name search: quickstart.sos.nh.gov/online/BusinessInquire · verified April 21, 2026
    NH QuickStart Business Inquire portal. Use to confirm name availability before filing.
  • Online filing portal: quickstart.sos.nh.gov/online/Account/LandingPage · verified April 21, 2026
    NH QuickStart online business filing portal. Current published online processing time is 10 to 15 business days. Online submissions carry a $2 electronic processing surcharge on top of the $100 filing fee.
  • Certificate of Formation name: www.sos.nh.gov/sites/g/files/ehbemt561/files/documents/2023-12/form_ll… · verified April 21, 2026
    Mail-in paper form titled 'Certificate of Formation' (Form LLC-1), revised October 2018. Online filers complete the equivalent form through NH QuickStart.