While not guaranteed, it is possible to obtain an increase in child support or maintenance payments if your ex-partner receives a raise. In such cases, a substantial raise may be deemed a "change in circumstance," which could serve as grounds for modifying the original order. In the case of child support, this usually requires demonstrating a change of at least 10% in the amount of support owed for the modification to be granted, and the change must be continuous, rather than a one-time payment or bonus.