There are two independent formula units in the asymmetric unit of the title compound, C4H10NO+·C6H2N3O7 . The morpholinium cations in both molecules are puckered and adopt a chair conformation. Intermolecular N—H...O and C—H...O interactions generate rings of motifs R21(5) and R12(6). The supramolecular aggregation is completed by the presence of two co-operative hydrogen-bonded networks of further N—H...O interactions, which generate an infinite one-dimensional chain along the base vector . Two C—H...π interactions are also seen.