Claiming of housing benefits during waiting Nationality

[Miangee]

Hi dear members

Me and my wife both are holding ILR and we have two british citizen children
I have applied my nationality and still waiting my question is if I will apply housing benefits will this effect my application and shall I need to inform HO ? does it fall under change of circumstance

[Casa]

It doesn't fall under a change of circumstances as and you both have ILR are no longer under Immigration control. This means you are entitled to claim benefits which under normal circumstances you qualify for. You don't need to notify the Home Office.
This tax credit calculator may also help you. I assume you're claiming child benefit?
https://www.gov.uk/tax-credits-calculator