If you are from US, then you need to submit your TAX information.
You can do so within your AdSense account.
Sign in to your AdSense account.
Click the gear icon and select Payments.
In the left sidebar, choose Payee profile.
Click Update tax information.
On this page you'll find a guide that will help you to select the appropriate form for your tax situation. All of the forms are available to submit online, and instructions for submitting any other forms offline are also provided.
The name on your tax form is automatically copied from the contact name in your payee profile. If you update your payee name, please resubmit your tax information.
Please be aware that not all publishers are required to provide tax information. The Tax Information page in your account will only enable you to submit tax information when it's appropriate for you to do so.
