Actually, my 15 year on my primary and my 30 year on one rental all let me make payments ahead of time. I don’t need to make payments until March. But there’s a wrinkle to this. If you really have extra money, you are probably better off paying down your principal and making your regular payments on time. I am in this situation. In which I made early payment so i dont need to make payments to March, but I really wanted to pay off the remaining $55k loan amount in January.
I guess I could try to get the servicer to reverse my payments but probably not possible. So basically i made payments when my principal was higher, such that a greater portion of my payment went to interest. If I just paid down my principal at the time, I wouldn’t have made all that extra interest payments for January and February since I would have simply been done in January.