How To Write A Letter Requesting For Increase In Salary . Given below is a format sample letter requesting salary increase from your employer. If you have another amount in mind or a plan to increase my salary in the future, i am open. 50 Best Salary Increase Letters (How To Ask For A Raise?) ᐅ TemplateLab from templatelab.com Salary increase request letter sample. (2) the timing of your letter is very important. This email is your written salary increment request, so you have to sure that everything is as clear as possible.include your official name and specifically state that the letter is about your.