Is it appropriate to ask for a raise during a midyear performance assessment? I know from speaking with others that I am being underpaid significantly. I would like to address this with my boss in our review.
It is absolutely appropriate to raise this during your review, especially if you expect a positive one. In fact this is what reviews are for. Don't wait for your boss to initiate this, it'll never happen.
For the rest of my answer, ie. how exactly to broach the subject, I refer you to answers in this related question, except to add a few things:
- You should've started the process six months ago by agreeing on goals for the next six months.
- You should get an idea of your market value. This involves brushing up your resume and attending a few interviews. Doesn't mean you have to leave, but it's better to get in the war mentality and negotiate with your boss from a position of strength if you do land an offer.