| February | |
| 28 | SUP | SMSF annual returns |
| Self managed superannuation fund annual return |
| 28 | ACT | Quarterly activity statements |
| Quarterly activity statement, quarter 2, 2011-12 |
| 28 | GST | Annual GST return |
| Annual GST return or information report - due date for lodging. |
| 28 | SUP | Superannuation guarantee charge (SGC) statement |
| Superannuation guarantee charge (SGC) statement due |
| March | |
| 21 | ACT | Monthly activity statements |
| February 2012 monthly activity statement - due date for lodging and paying |
| 31 | PAY | Income tax returns |
| Income tax return for companies and super funds with total income in excess of $2 million. |
| 31 | PAY | Income tax returns |
| Income tax return for individuals and trusts. |
| April | |
