Legal analysis: invoices after consumption should be issued at the time of consumption. Invoice can be issued within one month after consumption.

Legal basis: Article 22 of the Measures for the Administration of Invoices of the People's Republic of China shall be issued in accordance with the prescribed time limit, sequence and columns, all of which shall be truthfully issued at one time and stamped with special invoices.

No unit or individual may commit the following acts of falsely issuing invoices:

(1) Issuing invoices for others and for themselves that are inconsistent with the actual business conditions;

(2) asking others to issue invoices for themselves that are inconsistent with the actual business conditions;

(3) introducing others to issue invoices that are inconsistent with the actual business situation.