Rochdale is the latest council to warn it faces a huge shortfall should the government go back on its promise to fully reimburse councils for the cost of COVID-19.
The authority says it would be left with a £26m hole in its finances should no further help be forthcoming from the government.
It comes after Stockport council recently sounded the alarm over a possible £25m bill for its coronavirus response, while Salford council leader Paul Dennett wrote to the Prime Minister over fears his authority would be left £33m out of pocket.
The government has so far confirmed £3.2bn of support for local authorities - of which Rochdale council has been allocated £13.6m towards its estimated £40m bill.