Montana LLC Tax Registrations in 2026: What to Open Before Your First Sale or First Hire

August 19, 2026

Montana LLC tax registrations in 2026 start with one fact that surprises most new business owners: Montana has no general sales tax. There is no sales tax license to apply for, no quarterly filing, no money to collect and remit. For a product-based business in another state, that sounds like a dream. For a Montana business, it mostly just means one less errand. But three other tax accounts still matter, and they apply to nearly every Montana LLC the moment you hire your first employee or earn your first dollar of reportable income.

What Montana Does Not Require: The Sales Tax Question

Montana is one of five states with no general sales tax. Oregon, New Hampshire, Delaware, and Alaska round out the group — none of them tax the sale of goods at the state level. Alaska allows local option taxes in some municipalities, but those are the exception, not the rule, and most Montana businesses never encounter them.

What that means for your LLC: no sales tax license from the state, no need to register with the Montana Department of Revenue solely for sales tax purposes, and no ongoing sales tax filing obligation. This is a genuine administrative advantage. It removes an entire category of compliance that applies in 45 other states.

It does not remove all tax obligations. Montana still requires income tax registration, employer tax accounts if you have employees, and industry-specific licenses in regulated sectors.

Your Federal EIN: The First Account, No Matter What

Before you open any state account, you need a federal Employer Identification Number from the IRS. This applies to every LLC with employees, and to most multi-member LLCs even without employees. Sole proprietorship LLCs with no employees can often use the owner’s Social Security Number, but getting an EIN is still the better practice — it keeps your business and personal finances separate from day one.

Applying takes five minutes at IRS.gov using the online EIN assistant. The number is issued immediately with no filing fee. Write it down and store it somewhere secure. Every subsequent tax registration — state and federal — asks for it.

You can apply for an EIN online through the IRS website at no cost. If you file by mail instead, the processing time extends to several weeks.

Montana Income Tax Registration: The Account That Covers Pass-Through Income

Every Montana LLC that earns income reports that income through the owner’s personal Montana tax return. LLCs are pass-through entities for Montana income tax purposes. The LLC itself does not pay a separate Montana business income tax — the income flows through to the members and shows up on their individual Montana returns.

Montana updated its individual income tax structure in 2026 under HB 337, moving to a two-bracket system. The rate is 4.7 percent on the first $47,500 of taxable income for single filers, or $95,000 for married filing jointly. Income above those thresholds is taxed at 5.65 percent. This replaced a more graduated structure with a previous top rate of 6.75 percent, representing a meaningful reduction for Montana small business owners in the higher income brackets.

If your Montana LLC will have employees, you also need to register for a withholding tax account with the Montana Department of Revenue. The DOR handles employer withholding, individual income tax for employees, and the pass-through entity tax for certain business structures. You register through the DOR TransAction Portal, known as TAP.

The withholding account is separate from any personal income tax filing. As an employer, you withhold Montana income tax from employee wages at the rates determined by DOR withholding tables, and you remit those withholdings on the schedule assigned to your account — typically monthly or quarterly depending on the size of your payroll.

For the LLC itself, the pass-through income is reported on the owner members’ individual Montana returns. There is no separate Montana corporate income tax for an LLC — only for C-corporations, which pay a flat 6.75 percent. If you operate as a sole proprietorship or partnership in Montana, the income is reported on your individual return with the same two-bracket structure. Montana’s income tax treatment of pass-through entities is one reason the state consistently ranks among the most LLC-friendly tax environments in the country — no corporate franchise tax, no business equipment tax, and no sales tax, leaving LLC owners with a relatively clean state-level tax picture compared to peers in most other states. The Montana Department of Revenue maintains a full guide to employer withholding obligations, current tax rates, and quarterly filing instructions for Montana businesses. That said, Montana does have a Natural Resource Tax on extractive industries like mining and oil production, and a Beer and Wine Tax on alcohol sales — but neither applies to the typical service-based or retail LLC that most small business owners operate.

The Montana Department of Revenue publishes current withholding tables, forms, and instructions in the TAP portal. If you are setting up payroll for the first time, the DOR TAP system is where you manage both your withholding account and your employees’ tax documentation.

Unemployment Insurance: Registering With Montana DLI

Montana requires every employer to register with the Unemployment Insurance Division of the Montana Department of Labor and Industry before the first payroll is run. The registration establishes your UI account, sets your contribution rate, and puts you on the schedule for quarterly wage reporting.

New employers in Montana pay an initial contribution rate of approximately 1.0 percent on the first $47,300 in wages paid to each employee in 2026. That wage base — the maximum taxable wage per employee per year — is updated annually. After a year or two of experience rating, your rate adjusts based on the claims history of your former employees.

The UI system in Montana is funded entirely by employers. Employees contribute nothing. Every dollar of benefits paid to a former employee ultimately flows back as pressure on your contribution rate, which is why managing your UI account responsively — responding to claims notices promptly and accurately — has a direct financial effect on your business.

Register for your UI employer account through the Montana DLI UI Division online portal. You will need your EIN, your business start date, and your estimated quarterly wages. Quarterly wage reports are due by the last day of the month following each calendar quarter — April 30, July 31, October 31, and January 31.

Workers Compensation: Required From Day One in Montana

Montana requires workers compensation insurance the moment you hire your first employee. There is no minimum wage threshold, no industry carve-out for small businesses, and no phase-in period. One employee is enough to trigger the requirement.

This catches a lot of new Montana LLC owners off guard. Unlike unemployment insurance, where the requirement kicks in when you pay wages, workers comp is an insurance policy you are expected to have in place before the first day of work. The Montana State Fund is the state-chartered workers compensation insurer, though you can also obtain coverage through private carriers if you qualify.

The cost varies based on your payroll, the nature of the work, and your claims history. NCCI classification codes determine your rate. Office and administrative businesses typically fall into lower classification codes with lower premiums. Construction, logging, manufacturing, and agriculture operations fall into higher-risk codes with significantly higher rates. If your business involves work across multiple classification codes — for example, an electrical contracting business with both field workers and office staff — the premium is calculated using the rate for the job with the highest classification code, not an average. This is a common point of confusion for new contractors who assume their office workers bring down the overall premium. They do not. The premium is applied to the entire payroll using the highest applicable code. Montana’s agriculture sector — wheat, barley, pulse crops, cattle — employs a significant seasonal workforce, and agricultural labor classification codes rank among the highest in the NCCI system. If your LLC operates in agriculture or food processing, budget for a higher workers comp cost per dollar of payroll than you would for equivalent office-based work. Small construction contractors in Montana similarly face elevated rates due to the physical nature of the work and the historical claims frequency in the industry. Getting a quote before you set your first payroll estimate is not optional — it is the only way to know your true labor cost before you commit to a hiring plan.

Operating without required workers compensation coverage in Montana is a serious legal exposure. The Montana DLI can assess penalties, place liens on business assets, and pursue criminal charges against business owners who employ workers without coverage.

You can start the process at Montana State Fund, which offers online quotes and same-day coverage in many cases.

New Hire Reporting: A Free Account With a Short Deadline

Montana requires every employer to report newly hired employees to the state within 20 days of their start date. This is a separate requirement from payroll tax registration and it applies to every hire — full-time, part-time, temporary.

The report goes to the Montana New Hire Reporting Center at mt-newhire.com. The information is used primarily for child support enforcement and fraud detection, but the reporting obligation is universal.

The good news: this one is free, fast, and low-maintenance. You report name, address, EIN, hire date, and payroll frequency. Most payroll software handles it automatically. If you are running payroll manually for your first employee, set a reminder for this — the 20-day window is real and late reports can result in penalties.

The Annual Report: Still Due Even When the Fee Is Waived

Montana LLCs must file an annual report with the Secretary of State each year by April 15. For 2026, the filing fee has been waived — the announcement from the Secretary of State means you pay nothing for the 2026 report. The waiver has also been pre-announced for 2027.

Here is the part that catches people: a waived fee is not a waived deadline. Your 2026 annual report is still due by April 15, 2026, even though you do not owe a filing fee. If you miss it, the Secretary of State can administratively revoke your LLC’s good standing, and reinstatement involves paperwork and a $15 late fee at minimum.

File through the Montana Secretary of State online portal at biz.sosmt.gov. The process takes about five minutes if you have your LLC name, formation date, registered agent information, and principal office address ready. The portal also handles assumed business name registrations, certificates of good standing, and entity searches.

If you operate under any name other than your LLC’s legal name — for example, “Big Sky Consulting” when your LLC is registered as “Wilson Holdings LLC” — you also need to file an Assumed Business Name registration at the same portal. The fee is $20 and the registration is valid for five years.

Local Business Licenses: The Layer Below the State

Beyond state-level registrations, some Montana cities and counties require their own business licenses. These are separate from state registrations and are issued by the city or county clerk where your business is physically located.

Bozeman, Missoula, Billings, and Great Falls each have their own business license requirements for certain business types. Home-based businesses in incorporated cities often need a home occupation permit in addition to a general business license. Rural businesses outside city limits may only need a county business license, or in some cases nothing beyond the state entity filing.

The cost varies but is typically modest — $25 to $150 annually. The deadline is usually before you open your doors or begin operations. Unlike state-level LLC tax registrations in 2026, local licenses are not centrally tracked, which means the obligation does not arrive in your mailbox. You have to know to ask.

If you are opening a retail location, a restaurant, a childcare facility, or any regulated use in a Montana city, check with the city clerk before you sign a lease. Knowing the full licensing picture before you open prevents a surprise inspection on day one.

Building Your Montana Compliance Timeline

For a new Montana LLC, the registration sequence matters. Open your federal EIN first — it is the ID number every other agency asks for. Then register with the Montana DOR for withholding if you plan to have employees, and with the Montana DLI UI Division at the same time. Set up your workers compensation insurance before the first payroll date. Report new hires within 20 days of their start date. File your annual report by April 15 even when the fee is waived.

This sequence keeps your Montana LLC in good standing, keeps your employees’ taxes current, and keeps the penalty notices out of your mailbox. The compliance calendar for a Montana LLC with employees has four recurring quarterly deadlines — April 30, July 31, October 31, and January 31 — for federal Form 941 and Montana UI wage reports. Annual obligations include the Secretary of State annual report by April 15 and federal Form 940 for FUTA. Montana has no general sales tax, no franchise tax, and no business equipment tax, which makes this calendar shorter than most states. That simplicity is an advantage — use it. Montana LLC tax registrations in 2026 are not complicated once you know which accounts exist. Open them all before the first payroll and the rest of the year takes care of itself.

Related reading

• Montana LLC Formations in 2026 — formation steps, registered agent requirements, and filing options
• Montana Annual Report for LLC — annual report deadlines, fee waiver details, and what happens if you miss the filing