Hypothetical situation. Husband and wife divorce. They have 3 kids and they live with their mother. The mother has a job but the husband is on unemployment. The court orders him to pay the mother a nominal amount for child support. Let's say $50 per month. At some point, the husband lands a job and it pays him a lot more money. Let's say $75K. If the divorce agreement was amended at that point the child support would go up significantly. Let's say it would be $1,000 per month. The ex-wife has no resources to file a case with the court for an amended child support amount. However, 1 year after the husband has landed his new job she gets a bonus from work that is sufficient to allow her to file for an amendment. The question - can she go back and ask for the amount that WOULD have been awarded from the point the husband landed his new job? Or would the husband dodge the bullet and only have to pay what was in the original agreement?