Important dates for filing of GST-03
| For annual turnover below RM5.0 million: | ||||
| Year End | 1st Taxable period | Due date | 2nd Taxable period | Due date |
| January | 01-04-15 | 31-05-15 | 01-05-15 to 31-07-15 | 31-08-15 |
| February | 01-04-15 to 31-05-15 | 30-06-15 | 01-06-15 to 31-08-15 | 30-09-15 |
| March | 01-04-15 to 30-06-15 | 31-07-15 | 01-07-15 to 30-09-15 | 31-10-15 |
| April | 01-04-15 | 31-05-15 | 01-05-15 to 30-07-15 | 31-08-15 |
| May | 01-04-15 to 31-05-15 | 30-06-15 | 01-06-15 to 31-08-15 | 30-09-15 |
| June | 01-04-15 to 30-06-15 | 31-07-15 | 01-07-15 to 30-09-15 | 31-10-15 |
| July | 01-04-15 | 31-05-15 | 01-05-15 to 31-07-15 | 31-08-15 |
| August | 01-04-15 to 31-05-15 | 30-06-15 | 01-06-15 to 31-08-15 | 30-09-15 |
| September | 01-04-15 to 30-06-15 | 31-07-15 | 01-07-15 to 30-09-15 | 31-10-15 |
| October | 01-04-15 | 31-05-15 | 01-05-15 to 31-07-15 | 31-08-15 |
| November | 01-04-15 to 31-05-15 | 30-06-15 | 01-06-15 to 31-08-15 | 30-09-15 |
| December | 01-04-15 to 30-06-15 | 31-07-15 | 01-07-15 to 30-09-15 | 31-10-15 |

If your financial year end is February, May, August and November, you should file your GST-03 for the period from 1.4.2015 to 31.5.2015 on or before 30.06.2015.