How do I know if I am logged into Amazon.com and if I am logged in with my buyer or seller account ?
The way you know if you are logged into Amazon is when you see your name and location set on the Amazon top bar, as shown in the picture below.
All seller accounts will have a buyer account attached. The way to know if you are logged into Amazon using your personal seller account is that you will see the name on the top bar show up name of your Amazon Seller name.
Also please note personal Amazon buyer accounts can be a prime or smile or business.