Montana is a great state for your business. Corporate taxes are among the lowest in the country, and sales tax doesn't exist here. Here at Montana Registered Agent LLC, we are here to help you with your Montana business filings, as well as provide you with quality Montana registered agent service. We charge a competitive $45 a year. We guarantee that your service of process and legal mail, official notices and state notifications will be sent to you in a timely manner after we receive them.