<prompt> Human: I have my mortgage set to autopay on my monthly due date. Is there any interest saving advantage in changing that to pay on the statement date? If this does save money can anyone quantify it for me? My mortgage is 126k 3.79.  <response>: If you have a conventional mortgage then no. Interest is collected on a monthly basis.A simple interest loan collects interest daily, those are usually personal loans. On those, you need to pay exactly every 30 days to maximize interest benefits. 