Are you a U.S. Citizen or green card holder? What kind of property did you sell in Mexico? Was it your primary residence? Farmland? A 2nd home? Raw land? Commercial property? Some other kind of investment property? You need to provide a lot more details for the reader to work with here. But basically, if a U.S. Citizen or green card holder, you are required to report all income from all sources world wide, regardless of where that income came from or how you obtained it.
