Cash is the primary method of payment throughout Iraq. International credit cards are rarely accepted outside large international hotels in Baghdad and Erbil, and local ATMs are often unreliable for foreign debit cards. Travelers should carry crisp, undamaged US Dollars or Euros to convert into Iraqi Dinars (IQD) at local currency exchange shops. For more: Autumn Travel in Iraq: Visiting the Marshes, Babylon, and Desert Ruins in October and November