WHAT ARE THE TAX IMPLICATIONS OF SELLING A PROPERTY OWNED FOR LESS THAN 2 YEARS – WHAT IS THE $ YOU CAN MAKE?

I am anticipating to sell my first chateau which I have owned for eighteen months as well as take the distinction as well as deposit it in to my fiances property. What have been the taxation implications of this? Is there the sure volume of $’s which we can still have but carrying to own the skill for 2 years…