Text Callout : Key Takeaways - What Is a 1040 Tax Form and How Does It Work? The 1040 tax form is the form taxpayers use for filing federal taxes. It's also a form that plenty of people have trouble ...

Ready to mail your third-quarter estimated tax payment? Mailing addresses for some Forms 1040-ES have changed. Here’s what you need to know about estimated tax payments—and where to mail them. With ...