I've always politely declined to discuss my current salary, usually starting with simply "Job roles and compensation structures vary so much that I think it rea

I've always politely declined to discuss my current salary, usually starting with simply "Job roles and compensation structures vary so much that I think it really confuses things to try to compare apples and oranges, I'd prefer to focus on the value that I can bring $company", which has worked well for me in terms of either getting reasonable offers or identifying companies that are going to undervalue my position.