Google AdSense is an ad service from Google that allows you to place Google ads on your Web pages. The ads generate money once people click on them, and the money accumulates in your Google AdSense account. The earnings check Google sends you includes your full name; if you're operating an online business, you can opt to receive AdSense checks in your business name instead of your name. However, switching from an individual account to a business account requires you to open another AdSense account. You can change the AdSense publisher ID on your Web pages to reflect the change.
Instructions:
1) Visit the Google AdSense application page (see Resources). Fill out the application. Make sure to list your business name in the "Payee Name" box. All other information must match your business information.
2) Click "Submit." As long as there are no errors on your application, Google will send you an approval email once they receive and review your application.
3) Access your new AdSense account Web page. Look at the "Publisher ID" at the top right of the page. Replace your old publisher's ID on your websites with the new publisher ID.
4) Log in to your old AdSense account in order to cancel it. Copy the Publisher ID code. Navigate to the AdSense cancellation form (see Resources). Enter your name, AdSense email address and Publisher ID. Answer your security question and click "Submit."
Tips and Warnings:
You do not need to cancel your individual account if you do not wish to do so. The exact steps to change your publisher ID depend on your website.
Source - eHow
