If the invoice is not obtained at the time of final settlement, but the invoice can be obtained later, the tax can be temporarily increased, and after the invoice is obtained, the tax can be reduced at the time of final settlement in the next year. So there is no loss. You can also make it clear with the forensic doctor who settled the account and agree to reissue the invoice in the future. No need to adjust this time. However, if the invoice is not reissued as scheduled in the later period, there will be tax risks in the future.