HELOC to pay it down too, reducing the interest (and amount owed) by the amount of your paycheck. Now I'm thinking you're asking, "what about the bills that are due right after I get my paycheck?" Well, pull some money out of your HELOC to pay those bills. Then when your next paycheck comes, again, put all of it or some of it into your HELOC again. That may pay it down completely, but you may still have some bills coming up so, draw from the HELOC some more to pay those bills too. Now at the end of the month, hopefully your HELOC is close to being paid off with a balance close to $0 outstanding. At this point you can start all over again by sending your regular mtg payment plus an extra $1000 to apply to the principal again. All of which will come from your HELOC because, as I said at the beginning of this paragraph, your HELOC is $0 which implies that your checking/savings account balance is near $0 too. But that is OK because you will be paid in a couple of weeks and that paycheck will all go into your HELOC balance again, then bills will need to be paid increasing the HELOC a little, then another paycheck and some more bills. At this point, your next mtg payment will be due. If your HELOC is still in the red maybe you will only feel comfortable paying just the minimum mtg payment so