No you cannot get retroactive child support. You can take him to court to pay any arrearages. The arrears would be any amounts less than the court ordered amount of $100.00 per week. If he is current you cannot take him to court for retroactive increases. You can only ask for increases prospectively .
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You can only get retroactive child support back to the date that your petition for modification of support is served upon your ex. If you knew you were not receiving the correct amount, you should not have excepted it 10 years ago.
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The general answer is no. Retroactive child support can be ordered back to the date of filing requesting a modification. If he has not been ordered to provide you with income information on a yearly or other basis, he has no obligation to do so.
You should seek out the services of a family law attorney in your area.