Always raise the salary issue unofficially but if your direct supervisor is not keen to recommend a salary raise then you can approach the HR department with a written request.
Sample Letter Requesting A Salary Increase
Dear Mr Boss,
It has been a pleasure working for this esteemed company for the last 2 years. During this time, I have always labelled myself as a professional and I am always keen to stay on top of my tasks. I am perfectly comfortable facing new challenges and ready to step in to handle new duties at any moment.
Having said that, I would like to express my concern with the fact that a considerable period of time has passed since my last salary raise
For the past 6 months, through team efforts, the company performance has risen gradually and continues to do so. We have already surpassed 2015 year target by 15% and this growth is projected to continue. It was also a time that saw new members join in whom I had to train.
I am a hardworking and devoted employee and I honestly find it a little disappointing that my dedication is not awarded for such a long period of time. If there is a specific reason preventing such an increment I would be grateful to know what it is so I can address it immediately, otherwise kindly consider a salary review at the earliest possible chance.
Hardworking Job seeker.
24th July 2015
All the best as you negotiate for a better pay.