Reference for Arakhin 49:1

באמצע יובל דכל כמה דלא מליא ליה שנה לא מגרע ליה

for as long as a year is not complete it cannot be deducted.<span class="x" onmousemove="('comment',' From the total of remaining years to the next Jubilee, and he who redeems must pay for the incomplete year a full shekel with its pondion, The Mishnah thus means that after the Jubilee all redemptions must be made on the basis of complete years.');">¹</span>

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