http://www.ukba.homeoffice.gov.uk/vi...ply/financial/

Exemptions
You will be exempt from the new financial requirement if your sponsor receives a specified disability-related benefit or carer's allowance in the UK. You will need to show that your sponsor can maintain and accommodate you without access to public funds.

For more information about the financial requirement and the evidence we need, read Annex FM 1.7 - Financial requirement, which you can find on the right side of this page. It is guidance for our staff.