State Income Tax
4.7%–5.9%
4.7%–5.9% (two brackets)
Sales Tax
None
No state sales tax
Special LLC Tax
None
No extra LLC-level tax
Community Property
No
Standard tax rules apply

LLC Pass-Through Taxation

By default, LLCs don't pay taxes directly. Instead, the LLC members report the income (or losses) on their personal Form 1040 tax return. This is called pass-through taxation — tax responsibility "passes through" the LLC to its owners.

How Are LLCs Taxed in Montana?

By default, a Montana LLC is taxed by the IRS based on the number of members:

  • An LLC with 1 owner (Single-Member LLC) is taxed like a Sole Proprietorship
  • An LLC with 2+ owners (Multi-Member LLC) is taxed like a Partnership

These are the "default" statuses — automatically applied based on member count. You can also elect to have your LLC taxed as a Corporation (S-Corp or C-Corp) by filing extra paperwork with the IRS.

Single-Member LLC (default)

The IRS treats Single-Member LLCs as Disregarded Entities — the LLC doesn't file its own federal return. Instead, the owner reports LLC income on their personal Form 1040 (Schedule C if owned by an individual).

Multi-Member LLC (default)

Multi-Member LLCs file a Form 1065 Partnership Return and issue a Schedule K-1 to each member. Each member then reports their share of profits on their personal Form 1040.

Electing Corporate Taxation

  • S-Corporation: File Form 2553 with the IRS. Can reduce self-employment taxes once the LLC has consistent profits (generally $70,000+ net income per member). Speak with an accountant first.
  • C-Corporation: File Form 8832 with the IRS. Uncommon for small LLCs. Primarily useful for large employers offering healthcare fringe benefits.

Montana State Income Tax

Montana has a state income tax at rates of 4.7%–5.9% (two brackets). LLC members report their share of LLC profits on their Montana state tax return.

Single-Member LLC owners file Montana Form 2 (Individual Income Tax Return) and include LLC income. Multi-Member LLCs file Montana Form PR-1 (Partnership Return) and issue Montana Schedule K-1s to members.

Contact the Montana Department of Revenue at 406-444-6900 for more information.

Local Income Tax

You and/or your LLC may also need to file and pay income taxes with your local municipality (city, county, etc.). Contact your local government or hire an accountant to confirm local requirements.

Montana Sales Tax

Montana does not have a state sales tax — one of only a handful of states with this advantage. However, some local jurisdictions may still impose use taxes. Check with your accountant or local government to confirm.

Montana LLC Payroll Taxes

If your Montana LLC has employees, you must handle payroll taxes, which include:

  • Federal income tax withholding
  • Montana state income tax withholding
  • Social Security and Medicare taxes (FICA)
  • Federal unemployment tax (FUTA)
  • Montana state unemployment tax (SUTA)

Payroll calculations are complex — most LLC owners hire a payroll service or accountant.

Montana Tax Agency Contact

Agency
Montana Department of Revenue
Phone
Hours
Mon–Fri, 8am–5pm MT
Website

Montana LLC Taxes — FAQs

Yes. Single-Member LLC owners file Montana Form 2. Multi-Member LLCs file Montana Form PR-1.
Yes. Montana LLCs pay a $20/year Annual Report fee to the Secretary of State.
Your tax classification is based on the number of members. One member = taxed as a Sole Proprietorship. Two or more members = taxed as a Partnership. To be taxed as a Corporation, you must file Form 2553 (S-Corp) or Form 8832 (C-Corp) with the IRS. If unsure, call the IRS at 800-829-4933.
Yes. Montana has a state income tax with rates of 4.7%–5.9% (two brackets).
No. Montana does not have a state sales tax.
Haven't formed your Montana LLC yet?

Read the step-by-step formation guide with filing fees, processing times, and annual report deadlines.

Formation guide →
General information only — not legal or tax advice. Tax rates, forms, and requirements change. This guide reflects publicly available information as of June 2026. Confirm current requirements with the Montana Department of Revenue and a qualified CPA or tax attorney before filing. Last verified: June 2026. Full disclaimer