Abstract: A combined cover and compactor assembly capable of being mounted on a container for trash or other compactible material has a housing having at least one side wall defining a transfer and compacting chamber therein. The housing has a side opening located in the side wall serving as an inlet to permit the compactible material to be charged into the transfer and compacting chamber, and a lower end opening in registry with the transfer and compacting chamber. The housing is connectible to the container by a housing support that is adjacent and defines the lower end opening to allow compactible material charged into the transfer and compacting chamber through the side opening to either fall or be forced into the container. A retainer assembly including an upper end opening is disposed at the upper end of the housing to releasably support a compactor within the transfer and compacting chamber.