Invoices can be voided, if this invoice is not used, the invoice of the month from the invoicing software to void the invoice can be. Invoice management? Invoices can be canceled in the invoice management. The invoice can be canceled. If the other party has been invoiced, you have also been paid and certified by the tax office, he can not unilaterally void, because the voiding of invoices is conditional: the other party will be the return of the invoice and the credit union.

Legal basis: "The Chinese people *** and the State invoice management measures" Article 28 of the invoice units and individuals should be in the change or cancel the tax registration at the same time, for invoices and invoices purchasing book change, payment and cancellation procedures.

Article 29 of the Measures for the Administration of Invoices of the People's Republic of China and the People's Republic of China The units and individuals issuing invoices shall store and keep the invoices in accordance with the provisions of the tax authorities, and shall not destroy them without authorization. The invoice stubs and invoice registers that have been issued shall be kept for five years. Preservation of the expiration of the period, reported to the tax authorities after inspection and destruction.