Town Hall chiefs fear a further £21.6 million in savings and cuts will need to be made by 2024.
It is in addition to the £22.2 million required this year to balance the books.
During Monday’s cabinet meeting, members will be asked to note the ‘additional challenges’ as attention slowly turns to next year’s budget.
Deputy council leader Cllr Cathy Mitchell, portfolio holder for corporate resources, will highlight the estimated level of savings and cuts required to balance the budget from 2020-21 to 2023-24.
She says, over the four-year period, central Government funding is forecast to be ‘minimal’.
And the Town Hall expects new homes bonus money to ‘progressively reduce to nil’ over the period.
Cllr Mitchell also says, if Warrington received the average amount of funding per dwelling for the north west authorities, it would receive an additional £41 million, based on 2018-19 figures.
She added: “It is currently forecast that the council will need to make savings of £21.6 million over the four-year period.
“This figure is in addition to the 2019-20 budget saving requirement of £22.2 million.
“The true extent and value of the budget pressures will only become known closer to the period and previous experience would indicate it is likely they will increase significantly.”