Where to mail form 8606

Form 8606, "Underpayment of Estimated Tax by an S Corporation," is typically filed with the Internal Revenue Service (IRS) at the following address:

Internal Revenue Service Stop 640 1111 Constitution Ave NW Washington, DC 20224-0024

However, you should check the IRS website or the instructions for Form 8606 to confirm the correct mailing address, as it may have changed.

Additionally, you can also e-file Form 8606 using tax preparation software or through the IRS's Electronic Filing System (EFS). If you choose to e-file, you will need to follow the instructions provided by the software or the IRS's website.

It's also important to note that you should keep a copy of the filed form for your records, as you may need to provide it to the IRS or other parties in the future.