T4 season is enough to emote general stress from employers. There’s so much psychological baggage wrapped up in the otherwise innocuous task of filing this annual paperwork. As employers we’re taken back to the cold sweats of high school, where a test (we know is coming – but still haven’t prepare for) must be written. It all comes rushing to the foreground: The mysticism of how payroll deductions actually work, and whether we did it right throughout the year. The…