I have the following questions about the fidya that must be paid if a woman does not make up the fasting days she missed during Ramadan before the next Ramadan:
1. What is the fidya that she must pay, if any?
2. Is it additive (i.e., does it accumulate from year to year)?
3. Can she feed all the people on one day at a big feast?
4. What qualifies as an excuse for not making up these days? For example, if one never knew that it was obligatory to make up missed fasts before the next Ramadan despite being raised Muslim, does one still have make them up?
Shaykh Hamza Karamali answered as follows >> read here