Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 6 months ago

If you deliberately broke any the fast of any day of the month of Ramadan, you need to pay Kaffara beside Qaza and Istighfaar. Kaffara for every day of broken or deliberately missed fast is feeding sixty poor believers. Feeding means giving them one meal of food or at least 750 grams of wheat or rice or any food item.

If broke the fast  with out knowing that it is obligatory on you to fast, then just Qaza of the fast is enough.