Montana is a tax free state and doesn’t have sales tax.
Montana resale businesses that need to send a resale certificate to their vendor can use the Montana Business Registry Resale Certificate service to do so.
This certificate is suitable as the equivalent of a “resale certificate.” With this certificate, the seller can exempt the transaction from state sales or use tax. However, the seller is not required to accept a resale certificate that was created with the Montana Business Registry Resale Certificate service.
For some states, there is a requirement to use a state-specific form, and you may also need to provide additional information.
As of 2018, states may require Montana companies to collect and remit sales tax on sales to consumers in the consumer’s state. If Montana residents buy goods or services online, they are not required to pay sales tax in another state. However, in special cases, sales tax may be imposed on online purchases. The exception is for airline tickets purchased online, in which case you will be charged federal tax. You may also be subject to local tax in the state in which you rent a hotel or rent a car in another state, even if you do it online while in Montana.