We're choosing a payroll frequency for our startup and I want to understand how many payroll weeks in a year each schedule creates. I've heard numbers like 26, 24, and 52 thrown around, but I'm not sure how those map to weekly, bi weekly, and semi-monthly schedules. I also want to know if leap years or the way the calendar falls can affect the total number of pay periods in a given year. Can someone break this down clearly?