Leviticus 27:17-19

Amplified Bible

¹⁷ If he consecrates his field during the Year of Jubilee, it shall stand according to your valuation. ¹⁸ But if he consecrates his field after the Jubilee, then the priest shall calculate the price for him in proportion to the years that remain until the Year of Jubilee; and it shall be deducted from your valuation. ¹⁹ If the one who consecrates the field should ever wish to redeem it, then he shall add one-fifth of the appraisal price to it, so that it may return to him.