According to laws and regulations of the I.R.IRAN, all the Iranian nationals departing Iran must, before going through police checks, pay a money whose details are explained below to the account of government as departure tax. For this purpose, ATMs are available across passenger terminal of Imam Khomeini International Airport for passengers' convenience. Also, personnel of Bank Melli based at check-in hall and arriving hall of passenger terminal airport are ready to serve passengers day and night. You can make your payment there in cash. In addition, you can make your payment online before coming to airport or by branches of Bank Melli across Iran. Do not forget to have your payment slip when going to passport police. If you have paid online, you must give a sheet of transaction which shows you have property made your payment.