免税

How it works

免税めんぜい (tax-free) names what you want to do, and できる (can do) carries the "is it possible?" meaning. It shifts to the polite 〜ます (polite) form as できます (can do, polite), and the final か (question) turns the whole thing into a question. No one says "I" or "you" — context fills in who is asking.