If the garnishee answers and admits indebtedness to the defendant, judgment thereon must be entered against him, after judgment against the defendant, for the amount so admitted, if less than the amount of the judgment against the defendant, or, if more or equal thereto, for the amount thereof; and if the debtor demand is not then payable, execution must be suspended until its maturity.
Ala. Code § 6-6-454 (1975)