Don't push the due date back. You want any extra you are paying to be applied to the principal only. If you are advancing the due date, the extra is going towards both principal and interest on the next payment, and you pay more overall for the life of the loan than if you pay down more principal sooner.

I see what you're asking, but I don't know the answer.

I see this question when I pay extra on my student loan, on navient. (Only when I pay extra...PP).

When you pay extra it asks if you want to push the due date back, for the minimum payment.

I'm not sure if that affects what's applied to principal and interest.

I always select 'don't push the due date back' because I still want to be paying the minimum the next month.

You can pay off the loan quicker by paying more on the loan...

When I make my monthly student loan payment, it gives me an option to not advance the due date. What does that exactly mean? Is there a benefit in checking that box? Does one way allow me to pay off the loans quicker? Thanks!