Reminder: Don't include Social Security numbers on publicly disclosed forms

Do not include personal identifying information in discloseable returns.
General Information
Charities and Nonprofits

Employer identification number

Find out if you need an employer identification number (EIN). Get one online, free from the IRS. Don’t pay for an EIN.
General Information
Small Businesses

Publication 4757, Individual Taxpayer Identification Number (ITIN)

Publication 4757, Individual Taxpayer Identification Number (ITIN), is used by SPEC Relationship Managers as an outreach tool to provide information to partners about individual taxpayer identification numbers (ITINs).
Forms and Instructions

Employer identification number

Review the requirements and process for obtaining an employer identification number for tax-exempt organizations.
General Information
Charities and Nonprofits

Publication 5918, Continuing Education Provider Program Numbering Sequence

Publication 5918, Continuing Education Provider Program Numbering Sequence
Forms and Instructions

Publication 5726, Individual Taxpayer Identification Number Acceptance Agents Training

Publication 5726, Individual Taxpayer Identification Number Acceptance Agents Training
Forms and Instructions

Publication 5845, Do you need a new Employer Identification Number?

Publication 5845, Do you need a new Employer Identification Number? Generally, businesses need a new EIN when their ownership or structure has changed.
Forms and Instructions

Adoption taxpayer identification number

Information for those needing a taxpayer identification number for a child who has been placed in their home pending final adoption.
General Information
Individuals

U.S. taxpayer identification number requirement

This page discusses U.S. Taxpayer Identification Number Requirements.
General Information
Nonresidents

Taxpayer identification numbers (TIN)

Review the various  taxpayer identification numbers (TIN) the IRS uses to administer tax laws. Find the TIN you need and how to get it.
General Information
Nonresidents