Whether someone needs to, or can, make a new claim for HB depends on several factors.

How to claim HB - on a passport benefit - joint tenants - couples - special rules for hostels. 

What's needed from the tenant & when and what can the HB Office get from elsewhere?

When a 'nil income' claim is needed, and what to do to ensure payment.

Why the HB Office may decide a claim isn't valid, and what can be done.

What is this?

How does someone without mental capacity claim?

A useful concept!