What are good reasons to negotiate for a salary increase?

There are some good reasons to negotiate for a salary increase at any stage of your employment. You will be earning more for the life of your career if you can negotiate at a higher rate based on your skills. The company that hires you will place a higher emphasis on making sure you stay on the job because there is a larger investment in you. You will automatically elevate yourself into a higher position on the team because you will be earning more to begin with which gives you more respect and authority. Lastly, you will be able to enjoy better perks of your job which will help you be more committed to your career success and that of the company.