The official currency in Goa is the Indian Rupee (INR), and it's recommended to carry some cash for small purchases at local markets and for tipping. Currency exchange facilities are available at the airport and in major tourist areas. ATMs are widely available throughout Goa, and credit cards are generally accepted at hotels, restaurants, and larger stores. However, it's advisable to carry sufficient cash as some smaller establishments may not accept cards. Mobile payment options such as Google Pay and Paytm are also becoming increasingly popular and can be convenient for transactions.