Get Massachusetts Substitute W-9 Form (pdf) - Mass.gov - Mass

Filling out the Massachusetts Substitute W-9 Form is a crucial step for individuals and entities in providing their taxpayer identification information. This guide will walk you through the necessary steps to accurately complete the form online, ensuring compliance with state and federal requirements.

Follow the steps to fill out your Massachusetts Substitute W-9 Form online.

1. Click ‘Get Form’ button to obtain the form and open it in the editor.
2. Enter your legal name in the first field. If applicable, for joint names, list the first name and circle the name of the person whose taxpayer identification number (TIN) you will enter in Part I.
3. In the next field, input your business name if it is different from your legal name, referring to the specific instructions for clarity.
4. Select the appropriate checkbox that identifies your status: Individual/Sole proprietor, Corporation, Partnership, or Other.
5. Provide your legal address, including the street number, apartment or suite number, city, state, and ZIP code.
6. If your remittance address differs from your legal address, fill in that information as well.
7. Enter your phone number and optional fax number in the respective fields.
8. In Part I, enter your taxpayer identification number (TIN). If you are an individual, this is your social security number (SSN), whereas a corporation or other entities should provide their employer identification number (EIN).
9. In Part II, certify that the information provided is accurate by checking the appropriate statements and signing where indicated.
10. After completing the form, save your changes. You can download, print, or share the form as necessary.

Complete your Massachusetts Substitute W-9 Form online today to ensure efficient processing of your business transactions.