All visitors need a visa. If flying into Kinshasa it is essential to get a visa beforehand. These cost approximately US$75 for a one-month, single-entry visa, or US$135 for a 60-day, multiple-entry tourist visa. If crossing by land you can often get a visa at the border within 24 hours.
Visas for onward travel
If at all possible, procure your onward travel African visas from your home country before departure. This is especially true for Angolan visas which require a letter of introduction from a person in-country first. The easiest visa to get in the DRC is for Congo (Brazzaville) a short hop across the Congo River.