Waltham Forest Council’s scheme to help families on low income pay their council tax has a £2m shortfall.
The Council Tax Support (CTS) scheme was started in April 2017, to subsidise council tax for poorer residents.
It was predicted not to exceed a £13.4m government grant but the costs for 2019/20 and 2020/21 are at £15.6m and £15.5m each meaning the council must find £2m.
A report to councillors said the extra costs would be “reflected in the calculation of the council tax” for the coming financial year.