Typically, taxpayers must make periodic payments throughout the year toward the tax that they will owe. However, farmers are allowed an exception to this. Specifically, if a farmer files the return by the farmer due date and pays all tax owed by that date, the taxpayer will be excused from any underpayment penalty calculated by Schedule IT-2210. Typically, the farmer due date is March 1 or the first business day thereafter if March 1 falls on a weekend or holiday.