The 13th month is a tradition that began in the Philippines in the 1970s and has since spread across the globe. In order to reward employees for their year’s work, as well as to help with festive expenses, bosses began to offer an extra paycheck in December, which was equivalent to one month’s salary. Fast-forward 50 years, and the 13th month bonus has now become a legal requirement in many Latin American countries, where it’s known as an ‘aguinaldo’. Across the pond in Europe, the tradition is nonetheless a little less common. Mandatory bonusesThe European approach to 13th month salaries is a…