thekidsrule More money would be spent on HB, but more money would be gained from renting out council houses at the market rate to people who earn more money.
Let's imagine a house costs £500 market value but currently is rented out for £250 to council tenants.
Someone who earns nothing
Before they get £250 HB, and the house costs £250, net = £0
After they get £500 HB, and the house costs £500, net = £0
no change to what the council has
Someone who earns a small amount
Before they get £100 HB, and the house costs £250, net = they pay £150
After they get £350 HB, and the house costs £500, net = they pay £150
no change to what the council has
Someone who earns a small-medium amount
Before they get £0 HB, and the house costs £250, net = they pay £250
After they get £250 HB, and the house costs £500, net = they pay £250
no change to what the council has
Someone who earns a medium-large amount
Before they get £0 HB, and the house costs £250, net = they pay £250
After they get £100 HB, and the house costs £500, net = they pay £400
the council gains £150
Someone who earns a lot
Before they get £0 HB, and the house costs £250, net = they pay £250
After they get £0 HB, and the house costs £500, net = they pay £500
the council gains £250
The council can then use that money to give more HB to people who need it (whether they are in council housing or not)
I believe that two families who earn the same amount and live in two equally-nice houses should pay the same amount towards their housing.