So Joseph established a law that a fifth of the produce belongs to Pharaoh, and it is in effect in the land of Egypt to this day. Only the priests’ land does not belong to Pharaoh.
KJV
And Joseph made it a law over the land of Egypt unto this day, [that] Pharaoh should have the fifth [part]; except the land of the priests only, [which] became not Pharaoh’s.
ASV
And Joseph made it a statute concerning the land of Egypt unto this day, that Pharaoh should have the fifth; only the land of the priests alone became not Pharaoh’s.