Leviticus 27:18-20

Christian Standard Bible

¹⁸ But if he consecrates his field after the Jubilee, the priest will calculate the price for him in proportion to the years left until the next Year of Jubilee, so that your assessment will be reduced. ¹⁹ If the one who consecrated the field decides to redeem it, he must add a fifth to the assessed value, and the field will transfer back to him. ²⁰ But if he does not redeem the field or if he has sold it to another man, it is no longer redeemable.