In advance v.s beforehand

"Thanks in advance" is commonly used. I don't remember ever coming across "thanks beforehand".
Based on this, I would say that they are not always interchangeable under all circumstances.

Anonymous"Thanks in advance" is commonly used. I don't remember ever coming across "thanks beforehand". Based on this, I would say that they are not always interchangeable under all circumstances.

Thanks for your reply.
But I wonder under what circumstances is "in advance" preferred?
And, from what I understand, "in advance" is appropriate for substitu

I think you are right that "in advance" works for "beforehand", but not always the other way round.
I have often seen "Payment in advance is required" but not "Payment beforehand is required".
Just my own thought here: I myself would be more likely to use "in advance" for single actions, for example "We should buy our tickets in advance, in case they sell out." I would be more likely to us

GCheng620Are these two expressions ALWAYS interchangeable under all circumstances?

Note that when it comes to language, the answer to almost any question with 'ALWAYS' or 'NEVER' is usually 'NO'.

Had you known this, you could have answered your own question.