How to Register for a Sales Tax ID in Montana

Montana does not issue a general sales tax ID for ordinary retail sales because the state does not have a general-use sales tax. Most businesses selling goods or services only in Montana therefore should not try to register for a standard Montana sales tax permit or exemption number. Registration becomes relevant when a business is subject to one of Montana’s special sales and use taxes, such as the taxes applying to lodging accommodations or rental vehicles.

The important first step is to identify the activity or transaction involved. A request from a supplier for a “sales tax ID,” for example, does not necessarily mean a Montana business needs a state sales tax account. Likewise, an online business located in Montana may have registration responsibilities in customers’ states even though it does not need a general Montana sales tax permit.

Montana sales tax ID quick facts

For broader context, see Montana Sales Tax: What Businesses Should Know (No State Sales Tax).

Who needs to register in Montana?

A business does not register merely because it sells products in Montana. Instead, registration depends on whether the business conducts an activity covered by a particular Montana tax program.

Lodging accommodations

Each lodging accommodation required to collect and remit Montana lodging taxes must apply for a seller’s permit before doing business. The combined lodging facility sales and use tax is 8%. An operator should determine whether its accommodation and transactions fall within the lodging-tax program before choosing an account on a registration form.

Rental-vehicle vendors

All rental-vehicle vendors must apply for a seller’s permit before engaging in business and use Form GenReg to register. Montana imposes a 4% sales and use tax on covered base rental charges. This requirement is specific to vendors and charges subject to the Rental Vehicle Tax; it is not a general retail sales tax registration rule.

Montana also has tax programs for activities beyond these two examples. If a business handles a specially regulated product or transaction, it should identify the account associated with that activity rather than applying for a nonexistent general sales tax ID.

Ordinary retailers and service providers

A retailer making ordinary Montana sales generally does not need a general Montana sales tax permit. The same point applies when a customer, marketplace, bank, or supplier uses broad wording such as “sales tax number.” Before submitting any application, ask what the requesting party actually needs. It may be looking for an EIN, business-registration information, or documentation related to resale rather than a Montana sales tax ID.

What to prepare before applying

If the business is subject to a special Montana tax account, organize the information requested by Form GenReg before starting. Depending on the entity and tax type, the form requests identifying and business information that includes:

• The business’s federal employer identification number (FEIN) and/or the responsible individual’s Social Security number (SSN), as applicable.
• The entity type under which the business operates.
• The date on which Montana business activity first began or will begin.
• The Montana Secretary of State ID, when applicable.
• A description of the business activity.
• Information about owners.
• Business and registration contact information.

Use information that matches the business’s formation, federal tax, and ownership records. If the organization uses a DBA or trade name, distinguish that name from the underlying legal entity when completing the application. Review the tax-account choices carefully so that the registration corresponds to the taxable activity rather than a general description of the business.

Operators that need a permit before doing business should prepare early enough to complete the applicable registration before beginning the covered activity. Avoid collecting a special tax under an assumed account type; first determine which tax program applies and how the taxable charge is defined.

How to submit Form GenReg

1. Confirm that a special Montana tax applies. Determine whether the business is registering for lodging, rental vehicles, or another activity-specific tax account. Do not select an account solely because another state would treat the same transaction as an ordinary taxable retail sale.
2. Gather the requested identifiers. Have the FEIN and/or SSN, entity details, applicable Secretary of State ID, ownership information, contacts, and first Montana business-activity date available.
3. Describe the business activity clearly. A specific description helps connect the registration to the relevant activity. For example, lodging operations and rental-vehicle operations should be identified as such rather than described only as “services.”
4. Complete the applicable parts of GenReg. Particular fields depend on the entity and tax account. Review the completed form for missing ownership, contact, or activity information.
5. Choose a submission method. Businesses may file GenReg online through TAP, fax it to (406) 444-7723, or mail it to PO Box 5805, Helena, MT 59604-5805.
6. Retain a complete copy. Keep the submitted registration and related business records together so the business can refer to the information used to establish its account.

Do not assume that filing methods, account details, or administrative instructions remain unchanged. Check the current GenReg instructions when the business is ready to submit. Because Montana has no general sales tax registration for ordinary sellers, a general fee or processing-time expectation should not be used as a substitute for instructions tied to the specific special-tax account.

Resale and online sales outside Montana

Buying inventory for resale

Montana’s lack of a general sales tax does not prevent an out-of-state supplier from asking a Montana purchaser to document that goods are being bought for resale. A Montana business may give the Montana Business Registry Resale Certificate to an out-of-state vendor, but the certificate must not be filed with the Montana Department of Revenue. The vendor is not required to accept it.

This certificate is not the same as a general Montana sales tax permit. A business should provide it only in connection with qualifying purchases for resale and should send it to the vendor requesting documentation, not to the state.

Selling to customers in other states

A Montana online seller may have to collect and remit another state’s sales tax when it sells to buyers in a state that requires online retailers to collect the tax. Those obligations depend on the destination state, so the absence of a Montana general sales tax ID does not resolve registrations outside Montana.

Businesses making interstate sales should review each relevant destination state separately rather than attempting to use a Montana permit. More detail is available in Montana Seller’s Permit Requirements for Remote Sellers.

Maintaining a special Montana tax account

Once a special tax account is established, build account maintenance into normal business administration. Keep the registration information, account correspondence, and records related to taxable charges in an accessible location. Assign responsibility for reviewing notices and handling the account so that communications are not missed when employees, addresses, or service providers change.

Compare the business’s current operations with the activity described on its registration. A lodging operator that adds locations, a rental business that changes its legal entity, or any business that begins a different regulated activity should review whether its existing account information still reflects its operations. Follow the Department of Revenue’s current instructions for reporting relevant changes rather than submitting an application for a general sales tax ID.

Finally, separate Montana obligations from those of other states. Maintain a state-by-state record of registrations, certificates, and account correspondence. This prevents an out-of-state sales tax permit or resale document from being mistaken for a Montana special-tax account and helps the business respond accurately when a customer or supplier asks for tax documentation.