Leap year but bank charging interest rate/365 days

I have written an application to calculate my monthly interest charged on my mortgage. My figures have been out since the start of this year and i only just got around to debugging why.

Looks like my bank is charging daily interest rate of (annual rate/365 days) instead of (annual rate/366 days) because this year is a leap year (2020).

Is this correct? Is this specific to my bank – Newcastle Permanent?

I will contact my bank, but just wondering if anyone has any experience with this?

closed Comments

  • Sorry, all good.

    I dug up my paperwork and it clearly states:

    "The daily percentage rate is the annual percentage rate for that day divided by 365, including in a leap year."

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