Read Through Your Company’s Policies
When you start a new position, you don’t want anything standing in your way, especially issues with your previous employer. A two week advance is standard but make sure your company doesn’t require more notice. Giving them no warning not only creates awkwardness but also can impact your ability to start with the next employer. Also, if you were promised a bonus, make sure you get it before you leave. If you leave before you receive it, they may look for a reason to not pay you. Check your company’s guidelines to make sure that you don’t have to be employed with them to receive it.