Elizabeth on AdSense blog —”As you might know from our Payments Guide, one of the steps to getting paid is submitting your tax information. We’ve recently updated the Tax Information page located under your My Account tab with a new format that we hope will make it easier to determine which form is right for you. Also, you’ll now be able to see when your information was last saved so that you can make sure all updates have been recorded in our system.”
Every publisher’s tax situation is different, but we aren’t able to provide any tax advice. To help determine what’s right for you, we recommend walking through the tax wizard in your account or visiting our Help Center for additional help. If you’re not able to find the information you’re looking for, we encourage you to speak directly with your local tax advisor.
Updated, Tax Information Page, A Non-Taxing Tax Wizard