Leviticus 27:18

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 valuation will be reduced.

Leviticus 27:18 Meaning and Commentary

Leviticus 27:18

But if he sanctify his field after the jubilee
Some years after it, more or fewer, or it may be, when half way towards another jubilee, or nearer:

then the priest shall reckon unto him the money according to the years
that remain, even unto the year of the jubilee;
thus, for instance, if it only required an homer of barley to sow it, and the whole value of it from jubilee to jubilee was but fifty shekels of silver; then supposing it to be sanctified in the middle of the fifty years, or at twenty five years' end, it was to be reckoned at twenty five shekels, and sold for that money, and so in proportion, reckoning a shekel for a year:

and it shall be abated from thy estimation;
not the year of jubilee, but a shekel for every year was to be deducted from the original value of fifty shekels, according to the number of years that had passed or were to come.

Leviticus 27:18 In-Context

16 "If a man consecrates to the Lord any part of a field that he possesses, your valuation will be proportional to the seed needed to sow it, at the rate of 50 silver shekels for [every] five bushels of barley seed.
17 If he consecrates his field during the Year of Jubilee, the price will stand according to your valuation.
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 valuation will be reduced.
19 If the one who consecrated the field decides to redeem it, he must add a fifth to the valuation price, 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.
Holman Christian Standard Bible ® Copyright © 2003, 2002, 2000, 1999 by Holman Bible Publishers.  Used by permission.  All rights reserved.