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.
'Too early to tell' what caused fire
Crews from across the Island ensured cover was available
Firefighting foam may have killed fish in Silverburn River
People advised not to enter the water for 28 days
Additional road closure for TT filming ahead of MGP qualifying
Sunday morning closure along Quarterbridge and Peel Road
'Knives and sharp implements' left outside charity shops
Fly tipping warning from police after instances outside Crossroads