The Rotorua Lakes Council has blown out its budget by more than $2m, citing the museum's closure, storm repairs and transitional costs of the new waste collection as the main reasons.
A report for the council's financial performance for the 11 months ending May 31 shows the council ended the period $2,002,000 over budget.
The forecast for the year-end operating result, ending June 30, stated the council would likely end the year $2.3m behind budget.
In the report it was anticipated by June 30 the closure of the museum would result in a shortfall of $1m and the storm remedial work would add another $400,000 to the shortfall.
The balance relates to the transition costs for waste collection which were partially offset by efficiencies in other areas.