Validating a federal tax id number
If you are not sure of your own EIN, you can call the IRS's Business and Specialty Tax Line maintained at (800) 829-4933.
To receive the verification, you must be able to prove that you are an owner, partner or officer of the business, a trustee if the business is in a trust, or an executor if the business is in an estate.
If the information is incorrect, the IRS can disallow your business expense deduction to the other company.Know provides free EIN searches where and Verification are fee-based providers.Inaccurate information on your business's tax return can delay its processing and even trigger an audit from the Internal Revenue Service.The IRS does not let you deduct donations made to for-profit organizations.Businesses that want to do business with you should complete a Form W9, Request for Taxpayer Identification Number and Certification.
It is also referred to as a Federal Tax Identification Number.