What is a tax ID number? It's a unique nine-digit number issued by the Social Security Administration or the IRS to anyone ...

This guide was reviewed by a Business News Daily editor to ensure it provides comprehensive and accurate information to aid your buying decision. Tax identification numbers (TINs) and corporate ...

Tax-identification numbers are required on all tax forms, including tax returns. The number is how your business is identified by the IRS. The tax-identification number for your business can be either ...

What is a state tax ID number, and what is it for? A state tax ID number is sometimes called a state employer ID, state EIN or state tax registration. It’s assigned by a state to identify a business ...

A resale number allows your business to avoid paying sales taxes on items purchased for resale to customers. A tax ID number, on the other hand, identifies your business in your dealings with tax ...