On this question, Mohamad Naim Mohamad Hany Saei said that, the correct view on this issue is that whoever cannot perform fasting but with drastic hardship affecting his/her health or his/her regular, daily duties or affecting his/her only source of income significantly, it would be permissible for him to break the fast or not fast to begin with, and make up for those days after Ramadan.
Allah says, “The month of Ramadan in which was revealed the Qur’an, a guidance for mankind, and clear proofs of the guidance, and the Criterion (of right and wrong). And whosoever of you is present, let him fast the month, and whosoever of you is sick or on a journey, (let him fast the same) number of other days. Allah desires for you ease; He desires not hardship for you; and (He desires) that you should complete the period, and that you should magnify Allah for having guided you, and that peradventure you may be thankful.” (Al-Baqarah: 185)
May Allah Guide us to the best. Ameen.