It’s actually Reg 8, which contains the crucial detail that there is a two-week run-on.
Reg 5 says you cannot get HB and UC at the same time (except for specified/TA), and kicks in when an existing UC claimant moves on to general needs – no run-on there
Reg 7 says HB terminates when you shack up with a partner who was already on UC – no run-on there either
Reg 8 applies when someone on HB makes a claim for UC (eg after being found fit for work, or when an IS claimant’s oldest child reaches 5). HB terminates two weeks after the date of the UC claim.
