In the context of family law, this phrase comes up in Child Support Guidelines as well as applications to waive court fees. The term "undue" essentially means excessive, exceptional, or disproportionate. for example, if someone would have to sacrifice a reasonable expense in their life in order to pay the amount in question, this would be an undue hardship. In the Child Support Guidelines this term describes circumstances when payment of the table amount of child support would cause financial difficulty for either the payor or the recipient of support, potentially justifying an award of support in an amount different than the table amount. See "child support," "Child Support Guidelines" and "table amount."