As you know, approximately every four years we have what's called a leap year, a year with 366 days as opposed to 365. This additional day comes to us in February as the 29th day of the month. Intuitively, many of our clients would assume that 366 days in a year would affect the annual billing of their premiums, as one of the golden rules of annual premium calculation is to always divide by 365. So what happens in a leap year? Well, ultimately, I will address this question with this blog post, and share with you how leap years will not affect the calculation of your billed premiums. Let's learn more on how this is done.