Leviticus 27:18-23

18but if he dedicates his field after the jubilee, then the priest shall calculate the price according to the years that remain until the year of jubilee, and a deduction shall be made from the valuation. 19And if he who dedicates the field wishes to redeem it, then he shall add a fifth to its valuation price, and it shall remain his. 20But if he does not wish to redeem the field, or if he has sold the field to another man, it shall not be redeemed anymore. 21But the field, when it is released in the jubilee, shall be a holy gift to the LORD, like a field that has been devoted. The priest shall be in possession of it. 22If he dedicates to the LORD a field that he has bought, which is not a part of his possession, 23then the priest shall calculate the amount of the valuation for it up to the year of jubilee, and the man shall give the valuation on that day as a holy gift to the LORD.