Maintenance law in European jurisdictions is in a state of constant transformation. Recent reforms, however, show some areas of major concern. In child maintenance law, particularly joint custody of the parents and an alternating residence of the child make the need for a better calculation of maintenance more apparent. The use of guidelines with tables and formulas is on the rise. In maintenance after divorce, the growing influence of the principle of self-sufficiency is leading to reductions of the maintenance payments made to former spouses. Enforcement of maintenance claims, the role of the State and the relationship with social security benefits remain difficult.