Montana charges $35 to form an LLC; Pennsylvania charges $125. 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, Montana runs about $111 less in total state fees than Pennsylvania. Whether that gap matters depends on whether you actually operate in one of these states or are weighing a non-resident filing.

On speed, Pennsylvania typically clears standard online filings faster than Montana. 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
Montana $35
Pennsylvania $125
Montana saves $90
Year 1 total estimate
Montana $135
Pennsylvania $232
Montana saves $97
Ongoing per year
Montana $100
Pennsylvania $107
Montana saves $7
3-year total
Montana $335
Pennsylvania $446
Montana saves $111

Key differences at a glance

  • Montana costs $90 less to form ($35 vs $125).
  • Montana is $7 per year cheaper to maintain ($100 vs $107).

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 Montana

  • 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.

Montana Pennsylvania
Year 1
$135
$232
Year 2
$235
$339
Year 3
$335
$446

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 Montana, business operates there
No foreign LLC registration needed. You pay Montana fees only.
$135 $100 $335
You live in Pennsylvania, business operates there
No foreign LLC registration needed. You pay Pennsylvania fees only.
$232 $107 $446
Non-resident forming in Montana with operations elsewhere
You pay Montana's fees plus a typical home-state foreign LLC registration of about $200 per year.
$335 $300 $935
Non-resident forming in Pennsylvania with operations elsewhere
You pay Pennsylvania's fees plus a typical home-state foreign LLC registration of about $200 per year.
$432 $307 $1,046

Montana vs Pennsylvania: full comparison

Dimension Montana Pennsylvania
Online filing
Can you file the formation document online?
Yes Yes
Online approval time
Standard, non-expedited
5 business days 3 business days
Expedited option
Paid fast-track filing
$20 $100
Annual report
Required in addition to tax
Required, $0 Required, $7
State-imposed annual tax
Franchise, privilege, or LLC tax minimum
None None
State income tax
On pass-through LLC income at member level
Yes Yes
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
$70 $250
State sales tax
General statewide rate
None 6.0%

Taxes in Montana and Pennsylvania

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.

Montana tax

No entity-level franchise tax on LLCs. State income tax applies to member-level pass-through income. Corporate rate 6.8%.

Pennsylvania tax

No entity-level franchise tax on LLCs. State income tax applies to member-level pass-through income. Corporate rate 7.5%.

Ongoing compliance

The recurring filings each state requires after formation.

Montana

Annual report $0, due 04/15 each year. Registered agent required in Montana.

Pennsylvania

Annual report $7, due 09/30 each year. Registered agent required in Pennsylvania.

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.

Montana

  1. Check business-name availability on the Montana entity search.
  2. Appoint a registered agent with a physical Montana street address.
  3. File Articles of Organization for Domestic Limited Liability Company for $35.
  4. Wait for approval. Online typically 5 business days. Paid expedite from $20.
  5. Adopt an operating agreement (recommended, not required by Montana 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.

Pennsylvania

  1. Check business-name availability on the Pennsylvania entity search.
  2. Appoint a registered agent with a physical Pennsylvania street address.
  3. File Certificate of Organization – Domestic Limited Liability Company (DSCB:15-8821) for $125.
  4. Wait for approval. Online typically 3 business days. Paid expedite from $100.
  5. Adopt an operating agreement (recommended, not required by Pennsylvania 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 $7 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 Montana and Pennsylvania (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 Montana or Pennsylvania 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

Montana Secretary of State - Business Services Division

Website
sosmt.gov
Phone
(406) 444-3665
Email
sosbusiness@mt.gov
Mail
Business Services, Montana Secretary of State, P.O. Box 202801, Helena, MT 59620-2801
Office
State Capitol, Room 260, 1301 6th Avenue, Helena, MT 59620
Hours
8:00 AM to 5:00 PM Mountain, Monday to Friday

Pennsylvania Department of State, Bureau of Corporations and Charitable Organizations

Website
www.pa.gov/agencies/dos/programs/business.html
Phone
(717) 787-1057
Email
RA-CORPS@pa.gov
Mail
Bureau of Corporations and Charitable Organizations, 401 North Street, 206 North Office Building, Harrisburg, PA 17120
Office
401 North Street, 206 North Office Building, Harrisburg, PA 17120
Hours
8:00 AM to 4:45 PM Eastern, Monday to Friday

Montana Department of Revenue

Website
mtrevenue.gov
Phone
(406) 444-6900
Mail
Montana Department of Revenue, P.O. Box 8021, Helena, MT 59604-8021
Office
125 N Roberts Street, Helena, MT 59601
Hours
8:00 AM to 5:00 PM Mountain, Monday to Friday

Pennsylvania Department of Revenue

Website
www.pa.gov/agencies/revenue.html
Phone
(717) 787-1064
Mail
Pennsylvania Department of Revenue, 1131 Strawberry Square, Harrisburg, PA 17128
Office
Strawberry Square, Harrisburg, PA 17128
Hours
8:00 AM to 5:00 PM Eastern, Monday to Friday

Frequently Asked Questions

  • Is it cheaper to form an LLC in Montana or Pennsylvania?

    Montana is cheaper at formation ($35) than Pennsylvania ($125). Ongoing costs are also different: $100 vs $107 per year. Total over three years: $335 vs $446.

  • Can I form an LLC in Montana if I live in Pennsylvania?

    Yes, but your Pennsylvania business will almost certainly need to register as a foreign LLC in Pennsylvania too, which means paying Pennsylvania's foreign registration fee and any ongoing Pennsylvania obligations on top of the Montana 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 Montana vs Pennsylvania?

    Montana online: 5 business days; Pennsylvania online: 3 business days. Montana offers paid expedite from $20. Pennsylvania offers paid expedite from $100.

  • Which state has lower taxes for an LLC, Montana or Pennsylvania?

    Montana: state income tax applies to member-level pass-through income, no entity-level franchise or LLC tax. Pennsylvania: state income tax applies to member-level pass-through income, 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. Montana and Pennsylvania 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 Montana or Pennsylvania 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 Montana and Pennsylvania comparisons

Sources

  • Filing fee: sosmt.gov/business/fees/ · verified April 21, 2026
    Montana SoS Business Services fee schedule: Articles of Organization filing fee = $35.00 (plus $50 per series member for a series LLC). All business filings are online-only through biz.sosmt.gov.
  • Expedited filing: sosmt.gov/business/fees/ · verified April 21, 2026
    Expedited service: 24 hours = $20, 1 hour = $100. We record the cheapest tier (24-hour) as the default.
  • Foreign LLC registration fee: sosmt.gov/business/fees/ · verified April 21, 2026
    Foreign LLC Certificate of Authority filing fee = $70.00 (plus $50 per series member for a series LLC).
  • Operating agreement requirement: archive.legmt.gov/bills/mca/title_0350/chapter_0080/part_0010/sections… · verified April 21, 2026
    Montana Limited Liability Company Act, MCA Title 35, Chapter 8, does not require a written operating agreement. MCA 35-8-102 defines 'operating agreement' broadly; the statute lets the default provisions of Chapter 8 govern if no operating agreement exists.
  • Publication requirement: sosmt.gov/business/ · verified April 21, 2026
    Montana statutes and SoS filing instructions contain no LLC publication requirement.
  • Annual report fee: sosmt.gov/secretary-christi-jacobsen-continues-montana-business-suppor… · verified April 21, 2026
    Montana SoS announced that the annual report filing fee is waived for 2026 and 2027 for on-time filings (Jan 1 - Apr 15). Fourth consecutive year of waiver. Late filings after April 15 remain $35. Cross-referenced with the fee schedule at https://sosmt.gov/business/fees/.
  • Franchise tax: revenue.mt.gov/taxes/corporate-income-tax · verified April 21, 2026
    Montana Department of Revenue: no franchise tax on LLCs. Only entities that elect C-corp status pay the corporate income tax, which is not a franchise tax. Pass-through LLCs owe no entity-level state tax.
  • Corporate income tax rate: revenue.mt.gov/taxes/corporate-income-tax · verified April 21, 2026
    Montana corporate income tax: 6.75% standard rate; 7% for water's-edge election; $50 minimum tax. LLCs that default to pass-through do not owe this tax.
  • Sales tax rate: mtrevenue.gov/ · verified April 21, 2026
    Montana has no general statewide sales tax (0%). Industry-specific taxes apply to lodging, rental cars, and a few other categories but not to general retail.
  • Business name search: biz.sosmt.gov/search/business · verified April 21, 2026
    Montana SoS Online Business Services entity name search. Confirm name distinguishability before filing.
  • Online filing portal: biz.sosmt.gov/ · verified April 21, 2026
    Montana SoS Online Business Services portal. Montana accepts LLC formation filings online only; mail filings are not accepted for Articles of Organization. Standard processing averages 3-6 business days; expedite tiers available.
  • Filing fee: www.pa.gov/agencies/dos/programs/business/fees-and-payments · verified April 21, 2026
    Pennsylvania Department of State 'Fees and Payments' schedule: Certificate of Organization (domestic LLC) = $125. Veterans, reservists, and National Guard members may qualify for fee waiver with proof of service.
  • Expedited filing: www.pa.gov/agencies/dos/programs/business/fees-and-payments · verified April 21, 2026
    PA Department of State expedited service tiers (over-the-counter or electronic only, not available by mail): Same-day (request in by 10 AM) $100; 3-hour (by 2 PM) $300; 1-hour (by 4 PM) $1,000. We report same-day $100 as the cheapest expedited tier.
  • Certificate of Formation form: www.pa.gov/agencies/dos/programs/business/types-of-filings-and-registr… · verified April 21, 2026
    A Pennsylvania LLC is formed by filing Certificate of Organization (DSCB:15-8821) together with a Docketing Statement (DSCB:15-134A) with the Bureau of Corporations and Charitable Organizations. Fillable PDF is hosted at pa.gov.
  • Online filing portal: hub.business.pa.gov/ · verified April 21, 2026
    PA Business One-Stop Hub (Keystone Login). Online filing portal for Certificate of Organization, annual report, amendments, and UCC. Online LLC formation is typically approved within 1–3 business days based on the Department's published Business Filing Services guidance.
  • Business name search: file.dos.pa.gov/search/business · verified April 21, 2026
    Pennsylvania business entity search, operated by the Department of State. Cloudflare bot-verification gate appears on first load; page otherwise resolves normally.
  • Naming rules: www.palegis.us/statutes/consolidated/view-statute?iFrame=true&txtType=… · verified April 21, 2026
    15 Pa.C.S. Chapter 2 (Entities Generally): Sections 202 (requirements for names) and 204 (name restrictions, including required designators such as 'company,' 'limited,' 'limited liability company,' or an abbreviation). Official Pennsylvania General Assembly statutes.
  • Operating agreement requirement: www.palegis.us/statutes/consolidated/view-statute?iFrame=true&txtType=… · verified April 21, 2026
    15 Pa.C.S. §8815 recognizes operating agreements (written, oral, or implied) but does not require LLCs to adopt one. Under Chapter 88 (Pennsylvania Uniform Limited Liability Company Act of 2016), default statutory rules govern in the absence of an operating agreement.
  • Publication requirement: www.pa.gov/agencies/dos/programs/business/types-of-filings-and-registr… · verified April 21, 2026
    PA Department of State LLC information page: 'No advertising is required when forming a domestic limited liability company.' The old pre-2017 publication rule was repealed by Act 170 of 2016.
  • Foreign LLC registration fee: www.pa.gov/agencies/dos/programs/business/fees-and-payments · verified April 21, 2026
    PA DOS fee schedule: Foreign Registration Statement (foreign LLC) = $250.
  • Annual report fee: www.pa.gov/agencies/dos/programs/business/types-of-filings-and-registr… · verified April 21, 2026
    Pennsylvania Annual Reports page: under Act 122 of 2022, LLCs must file an annual report (Form DSCB:15-146) each year between January 1 and September 30. Fee is $7 for for-profit LLCs. Beginning with 2027 filings, non-compliance triggers administrative dissolution 6 months after the deadline.
  • Franchise tax: www.pa.gov/agencies/revenue/resources/tax-rates/corporation-tax-rates · verified April 21, 2026
    Pennsylvania eliminated the Capital Stock/Foreign Franchise Tax effective for tax years beginning January 1, 2016. No franchise or capital stock tax applies to LLCs. Restricted professional companies pay a separate annual registration fee of at least $500 under 15 Pa.C.S. §8998.
  • Corporate income tax rate: www.pa.gov/agencies/revenue/resources/tax-rates/corporation-tax-rates · verified April 21, 2026
    PA Department of Revenue Corporate Net Income Tax rate for 2026 = 7.49% (Act 53 of 2022 schedule). Rate steps down 0.5 points per year to 4.99% by 2031. Applies to C-corps and to LLCs that elect C-corp treatment.
  • Sales tax rate: www.pa.gov/agencies/revenue/resources/tax-types-and-information/sales-… · verified April 21, 2026
    Pennsylvania Sales, Use and Hotel Occupancy Tax base rate is 6%. Allegheny County adds 1% local tax and Philadelphia adds 2% local tax; statewide base rate reported here.