| Date | Category | Description |
| 12 May 2013 |
Activity statements | Final date to lodge and pay quarter 3 (January - March 2013) activity statements. Refer to Lodge your activity statements online to see whether you are eligible for this later due date. |
| 21 May 2013 |
FBT return | Due date for lodgment of 2013 FBT return and payment (if required). |
| 21 May 2013 |
Activity statements | Final date to lodge and pay April 2013 monthly activity statements. |
| 28 May 2013 |
Superannuation | Superannuation guarantee charge statement - quarterly (NAT 9599) - If required contributions were not made by the due date for quarter 3, 2012-13 (1 January - 31 March). The SGC cannot be deducted from tax. |
