Form W-9 is a simple IRS tax form, but mistakes can cause delays and withholding. Learn when you need it and how to fill it out.

Janet Berry-Johnson, CPA, is a freelance writer with a background in accounting and income tax planning and preparation for individuals and small businesses. Her work has appeared in Business Insider ...

Ever tried filing taxes, opening a U.S. bank account, or applying for a loan and hit a wall because you don’t have a Social Security Number? That’s where a taxpayer identification number (or TIN) can ...

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 ...

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 ...

The U.S. Department of the Treasury's Financial Crimes Enforcement Network (FinCEN) recently issued two new FAQs providing guidance on key taxpayer compliance measures. Areas covered in the FAQs ...