A W-9 is a form you fill out so a business can report what they paid you to the IRS

A W-9 is IRS Form W-9, Request for Taxpayer Identification Number and Certification. When you work as an independent contractor or freelancer, or when you earn income outside a traditional employment relationship, the person or business paying you will ask you to complete a W-9. You fill it out with your name, address, and tax identification number — usually your Social Security number. The business keeps it on file so they can report your payments to the IRS on a Form 1099-NEC or 1099-MISC at the end of the year.

The W-9 itself does not go to the IRS. You sign it and give it to the business paying you. That business then uses the information on your W-9 to file their own tax forms with the IRS, reporting how much they paid you. You will later receive a copy of that 1099 form, which you use when you file your own tax return.

Key Takeaways

  • A W-9 gives a business your tax identification number so they can report your income to the IRS on a 1099 form.
  • You fill out a W-9 when you work as a contractor, freelancer, or receive other non-employee income, not when you are a regular employee.
  • The W-9 stays with the business that pays you; you do not send it to the IRS yourself.
  • If you do not provide a W-9 when asked, the business may be required to withhold 24 percent of your payments and send that to the IRS.

When a business will ask you to sign a W-9

Any business that pays you for work or services as a non-employee will typically ask for a W-9 before they send you your first payment. This includes freelancers, consultants, contractors, gig workers, and anyone paid for a one-time project or service. If you drive for a rideshare platform, sell items online, provide writing or design services, or repair someone's home, you will likely fill out a W-9.

Businesses are required to collect a W-9 from anyone they pay more than $600 in a calendar year (with some exceptions for certain types of payments). Even if the total will be under $600, many businesses ask for one anyway to have your information on file. You may also encounter W-9 requests from banks or investment firms if you earn interest or investment income.

What information goes on a W-9

The W-9 form asks for straightforward information: your name, current address, and tax identification number. For most people, the tax identification number is your Social Security number. If you operate as a business entity — a sole proprietorship, partnership, S-corporation, or LLC — you may use an Employer Identification Number (EIN) instead, which you can obtain from the IRS for free.

The form also includes checkboxes for your business structure (sole proprietor, LLC, corporation, and so on) and a certification section where you sign and date the form. You are certifying that the information is correct and that you are not subject to backup withholding — a penalty situation that arises if you have failed to report income or provide a correct tax identification number in the past.

The difference between a W-9 and a W-4

A W-4 is what you fill out when you become a regular employee. It tells your employer how much federal income tax to withhold from your paychecks. A W-9 is what you fill out when you are not an employee — you are self-employed or a contractor. No withholding happens automatically; you are responsible for paying your own taxes, usually through quarterly estimated tax payments.

If you are a W-9 worker, you do not receive a W-2 form at the end of the year. Instead, the business sends you a 1099 form showing the total amount they paid you. You then report that income on your tax return and calculate what you owe, including self-employment tax.

What happens if you do not provide a W-9

If a business asks for a W-9 and you do not provide one, they are required by law to withhold 24 percent of your payments and send that amount to the IRS. This is called backup withholding. The withheld amount is credited against your tax liability when you file your return, but it means you receive less money upfront and have to wait until tax time to get it back.

To avoid backup withholding, provide the W-9 when asked. If you have a legitimate reason you cannot provide a tax identification number, discuss it with the business before work begins. In rare cases, you may be exempt from providing a W-9 — for example, if you are a non-resident alien or if the payment is for something other than services — but these situations are uncommon.

How to get a blank W-9 form

You can read Form W-9 directly from the IRS website at irs.gov. Search for "Form W-9" and you will find the current version as a PDF. You can print it, fill it out by hand, and sign it. Many businesses also provide their own copy or a digital version for you to complete online.

Do not use an old version of the form. The IRS updates the form periodically, and businesses expect the current version. If a business sends you a blank W-9 to fill out, use that copy. If you are obtaining one yourself, make sure the form shows the current tax year.

Your tax obligations after you sign a W-9

Signing a W-9 does not change your tax obligations — it straightforward documents them. As a self-employed person or contractor, you are responsible for reporting all your income on your tax return, whether or not you receive a 1099 form. If a business fails to send you a 1099, you still owe tax on the income you earned.

You will also owe self-employment tax, which covers Social Security and Medicare. This is typically 15.3 percent of your net profit (after business expenses). As a W-9 worker, you may be able to deduct business expenses — supplies, equipment, mileage, home office costs — which reduces your taxable income. Keeping good records of your income and expenses is essential, because the IRS may ask to see them if you are audited.

Frequently Asked Questions

Do I need to provide a W-9 if I am a regular employee?

No. Regular employees fill out a W-4, not a W-9. A W-9 is only for contractors, freelancers, and other self-employed workers. If a business asks you to sign a W-9 but treats you like an employee — controlling your schedule, providing equipment, requiring you to work on-site — that may be a misclassification issue worth discussing with a tax professional.

Can I use a W-9 to claim a business name instead of my personal name?

The W-9 asks for your legal name. If you operate under a business name or doing-business-as (DBA) name, you can list that, but your legal name and tax identification number must match IRS records. If you have formed an LLC or corporation, use the legal name of that entity and its EIN.

What if I make a mistake on my W-9?

If you discover an error after you have signed and submitted the W-9, contact the business when ready and provide a corrected form. If the business has already filed a 1099 with incorrect information, you can still correct it on your tax return. The IRS will match the 1099 they receive to your return, and if there is a discrepancy, they will contact you.

Is a W-9 the same as a 1099 form?

No. A W-9 is the form you fill out and give to the business. A 1099 is the form the business fills out and sends to you and the IRS, reporting how much they paid you. The information from your W-9 is used to complete the 1099.

Do I need a separate W-9 for each business that pays me?

Yes, typically each business will ask for its own W-9. Some businesses may accept a single W-9 if you work for them repeatedly, but it is common to fill out a new one each year or each time you start a new engagement.