agree with esmith66. It is LA decision how we recover. LA's tend to default to recovery from ongoing HB as it secures the debt and is cost effective (in most cases). In your case it makes no sense to carry on recovering via ongoing HB and an invoice seems a better option (good practice would be to always ask if they wish to settle in full?). We refer to the DWP OP guidance manual which is really useful https://www.gov.uk/government/publications/housing-benefit-overpayments-guide
