Cost for December's kits was more than £3.1m
Almost £6million has been spent on lateral flow testing kits since the start of the coronavirus pandemic.
More than half of the cost came last month following the change in testing policy on the Island.
Health Minister Lawrie Hooper told Tynwald less than £300,000 was spent in October rising to nearly £1million in November, before jumping up to £3.1million in December.
He confirmed the total spend since March 2020 has been £5,846,145.
Ard-Shirveishagh hopes he's given members enough time to consider 'Charter for Change'
Document only published a week before Tynwald
Live video streaming 'significant step' in making parliament more accessible
Public can now watch proceedings online
Treasury: 'Challenging to justify support for heating oil customers'
MHK says Island is 'dangerously close to a Dickens' novel'
Increase of more than 500 patients for mental health services over last 12 months
Waiting list has also climbed from 1,160 to 1,433