Odd Days Interest

Written By:
Paul Tracy
Updated August 5, 2020

What is Odd Days Interest?

Odd days interest refers to interest earned on loans that close on any day other than the standard day the lender requires interest and principal payments.

How Does Odd Days Interest Work?

For example, let's assume that John obtains a mortgage from his bank, and the monthly interest and principal payments will be $2,500. The bank requires mortgagees to make their monthly interest and principal payments on the first of the month.

Due to the circumstances of the purchase of his house, John's mortgage is going to close on the 10th of June. He is therefore responsible for the interest that accrues for the rest of that month -- from June 11 to June 30. This amount totals $300. Most banks will either tack this odd days interest onto John's first interest and principal payment of $2,500, or they may require him to pay the $300 at closing.

Why Does Odd Days Interest Matter?

One of the important aspects of odd days interest is that the amount is usually unknown until the day the mortgage actually closes. For this reason, lenders often leave odd days interest off of the good faith estimates that they must provide to borrowers regarding lending expenses. Therefore, borrowers must be aware that they might have to come to the closing table with hundreds if not thousands more dollars than they originally expected, depending on the day their loans close.