U.S. persons (citizens, resident individuals, and U.S. entities) asked for their taxpayer identification number by a client, bank, or platform. If you're not a U.S. person, you likely need a W-8 form instead — use the chooser below.
Official form: W-9 (Rev. March 2024) · blank PDF on irs.gov · IRS instructions
Your name exactly as it appears on your income tax return. For a sole proprietor or single-member LLC, this is YOUR name, not the business's — the business name goes on line 2.
Only if you have a business or DBA name different from line 1 — a single-member LLC's name goes here.
How your business is classified for FEDERAL TAX purposes — not its legal form. A single-member LLC that hasn't elected corporate treatment checks "Individual/sole proprietor", not "LLC". The LLC box is for multi-member LLCs and LLCs that elected C or S corporation treatment.
Only certain entities (banks, corporations for some payment types, tax-exempt organizations…) have one — codes are in the IRS instructions. Individuals leave it blank.
Applies mainly to accounts held outside the U.S. Most people leave it blank.
Where the requester will mail your information returns (like the 1099).
Only if the requester asked you to list one.
The company that asked for this W-9 — optional, for your records.
Individuals and sole proprietors generally use their SSN (a sole proprietor MAY use an EIN). Corporations, partnerships, and multi-member LLCs use the entity's EIN. The number must match the name on line 1.
This tool fills the official IRS form with the information you enter, locally in your browser. Review the IRS instructions before signing and submitting — requirements depend on your facts. This is a filling aid, not legal or tax advice, and PartnertaxAI is not affiliated with the IRS.