What is the purpose of IRS Form W‑12?

Form W‑12 is used to request a Taxpayer Identification Number (TIN) and certification from a payee so the payer can correctly report payments to the IRS.

Who needs to file Form W‑12?

Any individual, partnership, corporation, or other entity that will receive reportable payments and does not already have a TIN on file with the payer must complete Form W‑12.

Can I save my progress and finish the form later?

Yes. The Formize PDF Filler allows you to save a draft in your browser. When you return, click the same link to reload your saved data.

Is there any cost to use the fillable Form W‑12 on Formize?

No. The fillable version is completely free, and you can download or print the completed PDF at no charge.

Do I need a digital signature for Form W‑12?

A typed signature is accepted for most electronic submissions. If the recipient requires a handwritten signature, print the PDF, sign, and mail it.

What should I do if I make a mistake after submitting?

Correct the error on a new copy of the form, sign again, and resend the updated PDF to the requesting party.

Where can I find the official PDF version of Form W‑12?

The official IRS PDF is available at https://www.irs.gov/pub/irs-pdf/fw12.pdf.

IRS Form W‑12 – Fillable PDF Online

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The IRS Form W‑12 (Request for Taxpayer Identification Number and Certification) is the official document used by payors to request a Taxpayer Identification Number (TIN) from individuals or entities that will receive reportable payments. With Formize.com you can fill out this form directly in your browser—no printing, scanning, or PDF editor required.

What Is IRS Form W‑12?

Form W‑12 is issued by the Internal Revenue Service (IRS) to collect the correct TIN and certification for backup withholding purposes. It is commonly used by businesses, financial institutions, and government agencies when they need to verify the recipient’s TIN before issuing a Form 1099, 1098, or other information returns.

How to Complete the Fillable Form

Follow these simple steps to fill out the form online:

Click the "Fill out this form" button on this page.
Wait a few seconds while the Formize PDF Filler app loads.
Enter the required information in each field (name, address, TIN, etc.). The form automatically validates formats such as SSN/EIN.
Review your entries, then click Submit to download the completed PDF or to print it directly.

Common Mistakes to Avoid

Incorrect TIN format: Ensure the Social Security Number (SSN) is entered as XXX-XX-XXXX and the Employer Identification Number (EIN) as XX-XXXXXXX.
Missing signature: The form requires an authorized signature; the online filler includes a signature field that can be typed and saved.
Out‑of‑date address: Verify the mailing address matches the IRS records to prevent backup withholding.

Where to Submit the Completed Form

After completing the fillable PDF, you can:

Attach it to your electronic filing system and send it to the requesting payor.
Print and mail it to the IRS or the requesting entity, using the address indicated on the form.

Formize keeps a copy of your completed PDF for up to 30 days, so you can download it again if needed.

FAQs About Form W‑12

For quick answers, scroll down to the FAQ section below.

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FAQ

What is the purpose of IRS Form W‑12?
Form W‑12 is used to request a Taxpayer Identification Number (TIN) and certification from a payee so the payer can correctly report payments to the IRS.
Who needs to file Form W‑12?
Any individual, partnership, corporation, or other entity that will receive reportable payments and does not already have a TIN on file with the payer must complete Form W‑12.
Can I save my progress and finish the form later?
Yes. The Formize PDF Filler allows you to save a draft in your browser. When you return, click the same link to reload your saved data.
Is there any cost to use the fillable Form W‑12 on Formize?
No. The fillable version is completely free, and you can download or print the completed PDF at no charge.
Do I need a digital signature for Form W‑12?
A typed signature is accepted for most electronic submissions. If the recipient requires a handwritten signature, print the PDF, sign, and mail it.
What should I do if I make a mistake after submitting?
Correct the error on a new copy of the form, sign again, and resend the updated PDF to the requesting party.
Where can I find the official PDF version of Form W‑12?
The official IRS PDF is available at https://www.irs.gov/pub/irs-pdf/fw12.pdf.

HOW TO

How to fill out IRS Form W-12 for free, online in 4 easy steps:

1
Click the Fill‑out Button
On this page, locate the blue "Fill out this form" button and click it. This launches the Formize PDF Filler in a new tab.
2
Wait for the Filler to Load
The Formize app loads the fillable version of IRS Form W‑12 within a few seconds. A loading spinner will disappear when the form is ready.
3
Enter Your Information
Complete each field—name, address, TIN, certification, and signature. The filler validates formats in real time, reducing errors.
4
Review and Save
Double‑check all entries, then click "Save & Download" to get a completed PDF copy, or print it directly for mailing.

ABOUT

Tax forms

IRS Form W-12 is one of Tax forms that are documents used to report information about an individual's or business's income, deductions, and tax liability to the relevant tax authority. These forms are necessary to comply with tax laws and fulfill tax obligations. Tax forms vary depending on the country and the specific tax requirements in place. Here are some common types of tax forms:

Individual Tax Forms: These forms are used by individual taxpayers to report their personal income and claim deductions, credits, and exemptions. Examples include the 1040 form in the United States or the Self-Assessment Tax Return form in the United Kingdom.

Business Tax Forms: Business tax forms are used by companies, partnerships, or self-employed individuals to report their business income, expenses, and other tax-related information. Examples include the Schedule C form (Profit or Loss from Business) in the United States or the CT600 form (Company Tax Return) in the United Kingdom.

Payroll Tax Forms: These forms are used by employers to report the wages, salaries, and taxes withheld from their employees' paychecks. Examples include the W-2 form in the United States or the P60 form in the United Kingdom.

Sales Tax Forms: Sales tax forms are used by businesses to report and remit sales tax collected on taxable goods or services. The specific sales tax forms vary by jurisdiction.

Value Added Tax (VAT) Forms: VAT forms are used in countries that impose a value-added tax to report and remit VAT collected on sales and claim VAT credits for purchases. Examples include the VAT return forms used in many countries.

Estimated Tax Forms: Estimated tax forms are used to report and pay estimated taxes on income that is not subject to withholding, such as self-employment income or investment income.

These are just a few examples of the numerous tax forms that may exist. The specific forms required depend on the tax laws and regulations in your country or jurisdiction. It is important to consult the tax authority's guidelines or seek professional advice to determine which forms are applicable to your situation.

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