Fostering and benefits
When you foster, your fostering allowance isn't classed as income for the purpose of calculating means tested benefits. Therefore if you are able to claim them before fostering, it's likely that you can continue to claim whilst your fostering.
Means tested benefits include income support, working tax credits, child tax credit, housing benefit, council tax reduction and universal credit.
It's important to note, that just as your fostering income isn't considered as income for means tested benefit, any foster child you care for can't be considered as a member of the household for the purpose of benefit, because you have your fostering allowance.