East Suffolk Council has referred itself to the Regulator of Social Housing following issues with rent payments and health and safety data records.
The council has completed a four-month review into issues with its housing landlord service, which found improvements are required in a number of areas.
It found that data held by the council on health and safety issues was not as comprehensive and robust as it should be. The council is now arranging for additional inspections to be carried out to ensure the data is updated correctly.
The review also found some tenants who moved in after 2014 may have incorrectly been charged a higher rent. An independent external audit of every rent account will now be conducted to find out how many tenants have been affected.
Cllr Steve Gallant, leader of East Suffolk Council, said: 'I am grateful to officers for the thorough and diligent review they have undertaken, however their findings are deeply disappointing, and reporting our position to the housing regulator is entirely the right approach.
'I want to personally reassure all our tenants that any discrepancies in relation to rent payment will be resolved and a drop in the standards they should expect will be confronted and addressed.'
