Common mistakes include assuming everyone can claim Housing Benefit, when many working-age renters need to apply for Universal Credit housing costs instead. People may also provide the wrong rent figure, overlook how savings, income, non-dependants or a partner affect the assessment, or fail to report changes in their household or address. Check whether your accommodation and circumstances meet the rules, and keep tenancy and income evidence ready. Your local council or the official GOV.UK guidance can confirm which benefit to claim and how your individual circumstances are assessed.