Article:

9 Things You Should Never Say When Asking for a Raise

Avoid These Pitfalls at All Costs When Negotiating a Raise

6. "I've been here for a year now..."

Chances are your boss has a calendar. If not on the desk or wall, surely it's in a cell phone, tablet, or laptop. So why are you bringing up arbitrary dates that really mean nothing in the end?

Unless you negotiated a performance review or raise after a certain amount of time, being in your position one year or two years means nothing. Zip. Nada. Just because you've managed to occupy the same space for a certain amount of time doesn't mean you deserve a raise, and it has no bearing on your performance. So if you go into that office and lead with "Well boss, it's been a year now so I want a raise" you're probably not going to get it. Nor should you.

Prove yourself, not how long you've been there.