The decrease was attributed to non-payment of BPT and GST.
Total revenue reached MVR6.1 billion at the end of the first quarter.
GST accounted for 65 percent of revenue during November.
The Maldives Customs Service meanwhile collected MV280 million as import duties.
The tax authority collected US$136 million in July.
Tax receipts fell 19.9 percent below forecasts in April, the Maldives Inland Revenue Authority has said. Some MVR887.3million (US$57.5million) was collected last month.
