Which currency to use?
Guinea Bissau uses the West African CFA franc as its currency. Senegal, Burkina Faso, Benin, Togo, Mali, Niger, and Côte d'Ivoire are among the countries that use this currency. 'Communauté Financière d'Afrique' is the acronym for 'Communauté Financière d'Afrique' (Financial Community of Africa). When the Guinea-Bissau peso was abandoned in 1997, it was replaced with this currency. You are welcome to bring a supply of euros (preferred over US dollars). Some ATMs in the capital accept international cards, and banks and hotels can help with currency exchange.
A handful of banks in Bissau, as well as several hotels, including the Malaika and Ledger Plaza, have ATMs that accept international MasterCard and Visa cards. In Bissau's airport, there is also an ATM right outside the arrivals hall. Some ATMs are functional, while others are not. It's normal to haggle for goods in markets, craft shops, and from street vendors. It's done in a friendly, non-aggressive manner. You can also haggle for lower rates on longer-term stays, as well as prices quoted by guides and drivers.