The only way you could be placed in jail for non-payment of the child support is if you have been found to be in contempt of court. Therefore, I would suggest that you hire an attorney to review the court file(s) to see if any such order has ever been made.
When you say you are interested in paying back all the child support you owe, you should be aware that you owe the child support and 10% interest on the unpaid support. The interest is calculated on each particular support payment when originally due. Therefore, the balance could very well be much greater than you think.
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