If someone breaks his fast without a valid reason that is acknowledged by the Shariah, it is deemed as a major sin as it goes against one of the pillars of Islam. The person should hence repent to Allah s.w.t. as soon as possible and be determined to not repeat the sin.

The person is required to expiate the missed day of fasting by replacing it with another day of fasting (qada) after Ramadan. However, the person has missed the chance to obtain the great reward of fasting in Ramadan.