Go to the website of the clerk's office in the city or town where you do business. According to Massachusetts General Laws, you must register in every municipality in which you do business -- not with the Secretary of State. However, if you created a corporation with the Secretary of State and the corporation is doing business under the corporation's name, you don't need to register with the local municipality. For example, if you create the corporation "Frank's Chocolate" and register with the Secretary of State, you don't have to register "Frank's Chocolate" with the municipality in which you do business.
Download the DBA registration form. Some municipalities don't have online registration, so in those instances, call the clerk's office for that municipality and ask them to mail you a form. Or, go to the clerk's office to get a paper copy.
Complete the DBA registration form. Generally, you need to include your name, address and phone number, as well as the name, address and phone number of any other business owners, the DBA you want to use and the address at which the business operates. For unincorporated businesses, such as sole proprietorships and partnerships, you only need to include the name and contact information for the business owners. Company officers or employees who are not owners do not need to be included on the DBA registration form. However, if the corporation is registering the DBA, you must provide the corporate name and address, plus the name and title of the signing officer. Once you've completed the form, have the form notarized.
Submit the DBA registration, along with the required fee, to the clerk's office to complete the registration process.