Sending in a monthly mortgage payment can be a hassle and a headache. It's probably your largest monthly payment, and it likely takes a good chunk out of your budget. 

If you're tired of the bank being a co-owner on your home and want to stop sending in those payments every month, you may be tempted to try to pay off your mortgage early by sending in extra payments. Unfortunately, while it seems like a smart financial move, doing so can actually be a bad idea. Here's why.