<prompt> Human: After buying my house, I got a lot of mail from these mortgage payment processors suggesting I pay them bi-weekly instead of paying my mortgage directly monthly. The letters were super sketchy, and I figured there is a big catch somewhere but couldnt figure it out. What is the deal with these guys? Is this ever actually a good idea? Has anyone done this and had it work out really well for them? It seems very sketchy to me to have a middleman payment processor for my mortgage.  <response>: Paying your mortgage biweekly is essentially the same thing as paying 13 mortgage payments every year. In order to do a biweekly payment, most banks will charge you a fee, so the simple way is to just pay an extra payment every year if youre paid every two weeks, thats really easy to accomplish 