The currency is the Congolese franc. Banknotes are issued in denominations of 1, 5, 10, 20 and 50 centimes, 1, 5, 10, 20, 50, 100, 200 and 500 francs. The only Congolese bank notes currently in circulation in most places are the 50, 100, 200 and 500 franc notes. They are almost worthless, as the highest valued banknote the 500 franc note is worth only about US$0.90.
U.S. dollars in denominations above $2 are much preferred to francs. In contrast, U.S. coins and $1 and $2 U.S. notes are considered worthless. Note that if you pay in dollars, you will get change in francs. Though francs may sometimes come in bills so old they feel like fabric, U.S. notes must be crisp less than 3 folds and be printed in or after 2003, or they will not be accepted.
In some shops, the symbol FF is used to mean 1000 Francs, and 1 U.S. Dollar is considered equivalent to 1000 Francs.
There are some supermarkets in Gombe commune of Kinshasa that sell food and drinks, soap, kitchen devices and bazar: City Market, Peloustore, Kin Mart, Hasson's.
SIM cards and prepaid recharge for mobile phones are available in the street and at Ndjili airport, at a reasonable price.
Mastercard/Maestro ATMs are available now in Kinshasa at the "Rawbank" on boulevard du 30 Juin Gombe District, and in Grand Hotel. It spits out U.S. dollars. Visa card is also usable with "Procredit" bank ATMs in Kinshasa, avenue des Aviateurs, or outside in front of Grand Hotel only US$20 and US$100 notes.