You’re expected to pay in cash
When you travel to Sierra Leone, you will be expected to pay in cash. This is definitely one of the top Things about Sierra Leone You Should Know. Sierra Leone's official currency is the Sierra Leone Leone (SSL or Leone for short). The exchange rate at the time of writing is around $1 USD to SSL 10,000. The rate of inflation is actually extremely high.
While credit cards are accepted in restaurants and hotels in Freetown, everything outside of the city must be paid in cash. Because there is only one operational ATM in Freetown, you should pack enough cash for the duration of your vacation and convert money as soon as you arrive — there is a currency exchange at the airport. So make sure you bring enough cash for your trip before traveling to Sierra Leone.