Substitute W-9 Form 2026

1. Click ‘Get Form’ to open it in the editor.
2. Begin by entering your Taxpayer Identification Number (T.I.N.) in the designated box. For individuals, this is typically your Social Security Number (SSN).
3. Fill in your name as it appears on your income tax return, along with any 'Doing Business As' (DBA) name if applicable.
4. Provide your mailing address and, if different, your remit address. Ensure all contact information including phone, fax, and email are accurate.
5. Select your federal tax classification by checking the appropriate box. If you are a single-member LLC, ensure you follow the specific instructions provided.
6. Indicate your business designation and vendor type by selecting the relevant options.
7. Read through the certification section carefully. Sign and date the form where indicated to confirm accuracy.

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