Each taxpayer in the U.S. needs to have a unique nine-digit number that can identify them to the IRS. Many Americans use their Social Security number, or SSN, to confirm their identity on tax returns ...

An employer identification number (EIN) is issued by the Internal Revenue Service (IRS) to identify a business for tax administration purposes. It’s also used to complete some core business tasks, ...

Setting up a trust can be a powerful way to manage and protect assets. However, it also comes with important tax responsibilities. One of the first steps many trustees face is obtaining a tax ID, or ...

As you prepare to file your taxes in advance of the April 15 deadline, you may be wondering about certain terminology. For instance, the 1040 form that most people use to file their federal income ...

As a business owner, it is critical that you keep your business and personal lives separate. One of the best ways to do that is to get an Employer Identification Number (EIN). EINs not only keep ...

Forbes contributors publish independent expert analyses and insights. Darren Case is an Arizona attorney covering tax and estate planning. As we come close to the end of taxable year in conjunction ...

A Tax Identification Number (TIN) is required for all entities to file tax returns. Individuals use their Social Security Number (SSN) as their TIN for personal taxes. Businesses need unique TINs, ...

An Individual Taxpayer Identification Number is a nine-digit number the IRS uses to process taxes and administer tax laws. The agency issues them only to certain nonresident and resident aliens, as ...

If you have a business, you may need to fill out IRS Form W-9 Katharine Paljug is a financial writer and editor with over a decade of industry experience. Her writing has covered nearly every aspect ...

The IRS continues to roll out drafts of some 2026 tax forms, including a draft of Form W-9, Request for Taxpayer Identification Number and Certification. Here’s a look at what’s new—and why it matters ...

After giving your prospective tax preparer as much information as possible about your returns, ask them how they’re paid and ...