Boss on his 30th birthday

Please help me out! What is the right way to congratulate boss on his 30th birthday?

I agree that this is not a simple task. It all depends on how close your working relationship is. In such cases, you should never cross the boundaries of your corporate etiquette. Also, you should use this event to show yourself in the best possible way. In my opinion, the best way to do this is to send a greeting card in the morning to his corporate email. I think any of these https://birthdayimg.com/30th-years-free-happy-birthday-images/ will work for you. Good luck!

I never greet my boss. He's an asshole! Pardon my French. Maybe that's why I have such a low salary.