At some point in life, you may want or feel forced to ask for a salary increase, especially when you feel like you deserve one. This happens when you feel confident that you can provide your employer with a strong case for the raise you want to ask for, you can express yourself in writing through a salary increase letter. There are times when you need extra money, especially when you are achieving a new milestone in your life. Starting a family for example or organizing a hastily planned wedding. Your salary will definitely not be able to pay for all the arrangements, so you will need to look elsewhere.