The Royal Malaysian Customs has created an official website for the Malaysian Goods and Services Tax
This is in preparation for eventual implementation of GST
There is a draft guideline on Tax Invoice & Recordkeeping, which you may want to read and give your feedback before finalisation by the Customs Department.
The guideline specifies the requirements when issuing Tax Invoice, Credit Notes, Debit Notes and what type of records you need to maintain. All records must be kept for 7 years
