I have a particular setup at my job where I work for three months straight, then go to school for three months, then return to work, however, I'm sure this question could be applied to anyone who received an unexpected, unmentioned raise.
When I got my first paycheck, I noticed a small bump in my stated rate. I've been with the company for a year now and have been taking on new activities, but regardless, it was a bit of a surprise. There's no stated policy with the company for yearly raises, or adjusting for inflation or anything like that. I highly, highly doubt it was a mistake, though, so I don't think I'm being paid in error.
My problem is is that I'm not sure whether I should bring attention with it to someone responsible for it. Should I tell my boss "thank you," or does that seem a bit out of place? I have a good relationship with him, but I've never heard of a situation where a raise was neither negotiated with both parties or already listed as a benefit, such as automatic increase for inflation.
I've thought of casually bringing it up, just to make sure it wasn't a mistake, but honestly everything I think of feels awkward.
For what it's worth, I'm also currently an intern, but since our team is so small, I generally get treated like a normal employee.