Taxpayer Identification Number (TIN)

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Taxpayer Identification Number (TIN)

TIN


Forms and Instructions

Relevant Forms

Form W-7 Application for IRS Individual Taxpayer Identification Number
Instructions for Form W-7, Application for IRS Individual Taxpayer Identification Number

Form W-7 (COA) Certificate of Accuracy for IRS Individual Taxpayer Identification Number

Form W-7 (SP) Solicitud de Numero de Identificacion Personal del Contribuyente del Servicio de Impuestos Internos
Solicitud de Numero de Identificacion Personal del Contribuyente del Servicio de Impuestos Internos

Form W-7A Application for Taxpayer Identification Number for Pending U.S. Adoptions

Form W-9 Request for Taxpayer Identification Number and Certification
Instructions for the Requestor of Form W-9, Request for Taxpayer Identification Number and Certification

Form W-9 (SP) Solicitud y Certificacion del Numero de Identificacion del Contribuyente
Instrucciones para el Solicitante del Formulario W-9(SP), Solicitud y Certificacion del Numero de Identificacion del Contribuyente

Form W-9S Request for Student's or Borrower's Taxpayer Identification Number and Certification


Publications

Related Publications

Publication 1281 Backup Withholding for Missing and Incorrect Name/TINs (including instructions for reading tape cartridges and CD/DVD formats)

Publication 1586 Reasonable Cause Regulations and Requirements for Missing and Incorrect Name/TINs (including instructions for reading CD/DVDs and Magnetic Media)

Publication 1915 Understanding Your IRS Individual Taxpayer Identification Number (ITIN)

Publication 1915 (SP) Understanding Your IRS Individual Taxpayer Identification Number (ITIN) (Spanish Version)

Publication 4327 ITIN Bilingual Brochure (English & Spanish)

Publication 4393 (ENG/SP) Become an IRS ITIN Acceptance Agent (English/Spanish version)

Links Inside Publications

Publication 17 - Your Federal Income Tax (For Individuals) - Child and Dependent Care Credit

Taxpayer identification number. You must include on your return the name and taxpayer identification number...

Publication 51 - Circular A, Agricultural Employer's Tax Guide - (Circular A), Agricultural Employer's Tax Guide

1. Taxpayer Identification Numbers. If you are required to withhold any federal income, social security, or...

Publication 515 - Withholding of Tax on Nonresident Aliens and Foreign Entities - U.S. Taxpayer Identification Numbers

U.S. Taxpayer Identification Numbers. As the withholding agent, in most cases you must request that the payee...

Publication 1544 - Reporting Cash Payments of Over $10,000 - Who Must File Form 8300?

Taxpayer Identification Number (TIN). You must furnish the correct TIN of the person or persons from whom...

Frequently Asked Questions

FAQ - Small Business, Self-Employed, Other Business

I recently formed a limited liability company (LLC). The LLC has no employees, is not subject to relevant excise...

FAQ - Small Business, Self-Employed, Other Business

Under what circumstances am I required to change my employer identification number (EIN)? If you already have...

FAQ - Small Business, Self-Employed, Other Business

Do businesses have to obtain the taxpayer identification number (TIN) from vendors and keep it somewhere on...

FAQ - Small Business, Self-Employed, Other Business

Is an employer identification number the same as a tax identification number? An employer identification number...

Tax Topics

Tax Topic 755

Employer Identification Number (EIN) – How to Apply. An Employer Identification Number (EIN) is a nine-digit...

Tax Topic 857

Individual Taxpayer Identification Number (ITIN) – Form W-7. A taxpayer identification number must be furnished...

Web Links

IRS.gov Web Site

Taxpayer Identification Numbers (TIN)