Mont. Code Ann. § 27-16-603
Substituting bail for deposit
27-16-603 . Substituting bail for deposit. If money be deposited, as provided in 27-16-601 and 27-16-602 , bail may be given and may justify upon notice at any time before judgment; and on the filing of the undertaking and justification with the clerk, the money deposited shall be refunded by such clerk to the defendant.