Add or remove inbox categories & tabs in Gmail

1. On your computer, open Gmail.
2. At the top right, click Settings   See all settings.
3. Click the Inbox tab.
4. In the "Inbox type" section, select Default. Note: To hide all tabs, select another inbox type.
5. In the "Categories" section, check the boxes of tabs you want to show. Note: You can't make new tabs; you can only show or hide existing ones.
6. Scroll to the bottom, then click Save Changes.

Note: If you've turned on notifications, you'll only get notifications about emails in your Primary category.