Assuming these are for short-term loans, such as for flips, @Keith Groshans, you could do what we do and let the borrower keep the money and pay everything when they sell the property. In this case, since they are borrowing their payments, these would get added to the principal balance each month, and interest would be calculated on that.
If, for example, the interest rate on the note were 10%, they would implicitly be borrowing their payments at that rate. If you do the math, since your borrower is paying interest on interest, it raises your effective interest rate by about a point. Thus, your return would be about 11%. With some more math, you’ll see that the extra amount in dollars is not that much compared to the total amount of interest paid. Borrowers like that.
Since money is the lifeblood of all house flips, I consider this a win-win for everyone. It enables us to keep our money working at our current rate, and it puts more money in the hands of the rehabber. I argue that more money in the hands of the rehabber makes the loan safer. Idle money is the quickest path to low returns and does no good for anyone. Since few lenders have the stomach to do this, it’s also been a great competitive advantage for our business.
This horrifies almost every private lender I know. They argue that a missed payment is your best notice that there is a problem brewing. As small lenders, we’re in frequent contact with our borrowers, so we usually know how they’re doing. Can you imagine actually communicating with your borrower? I suppose if we had hundreds of loans out, this would be impractical. If we had hundreds of loans out, we’d have enough monthly income to aggregate the payments into additional loans—but we don’t.
If you do this, your note will have to have a compounding clause in it, provided by your lending attorney. Your attorney should also determine if this is legal in the state(s) you’re lending in. Also, note that if you use a loan servicer, some can’t handle compound interest. It’s high math, I guess.