Riba is Haram!

Allah says:

“Those who consume interest cannot stand [on the Day of Resurrection] except as one stands who is being beaten by Satan into insanity. That is because they say, "Trade is [just] like interest." But Allah has permitted trade and has forbidden interest. So whoever has received an admonition from his Lord and desists may have what is past, and his affair rests with Allah. But whoever returns [to dealing in interest or usury] - those are the companions of the Fire; they will abide eternally therein.”

Quran 2:275

Imam Muslim (1598) narrated that Jaabir said: “The Messenger of Allah (blessings and peace of Allah be upon him) cursed the one who consumes interest and the one who pays it, the one who writes it down and the two who witness it, and he said: they are all the same.” (Any amount of it)