The full name is a “Notice of intent to claim or vary a deduction for personal super contributions”. It’s the form that turns your personal super contributions into a tax deduction. You have to give it to your super fund (or yourself if you have an SMSF) and get a written acknowledgement from your fund trustee (even if you have an SMSF) by strict deadlines. Starting a pension, taking a lump sums, rolling over to a new super fund can all bring the deadline forward.