The Public Accounts Committee (PAC) has highlighted how one-fifth of carers are finding it difficult to get hold of benefits in a "complex and confusing" system.
According to the group, the Department of Work and Pensions must go further to help out a number of these people in accessing such funds.
The Alzheimer's Society said that people with dementia, as well as their carers, are among those hit hardest by the financial costs associated with disability, with carers saving the government £6 billion alone.
Furthermore, the charity highlighted how they are already doing a hard enough job without having to go through a bureaucratic system to get hold of allowances and benefits available to them.
It concluded: "This report by the PAC adds further weight to the call for the government's forthcoming green paper to radically overhaul the current charging system and deliver a transparent and fair deal for carers."
Around 700,000 people in the UK have Alzheimer's disease - a growing problem which ought to be addressed to save money and lives, according to the Alzheimer's Society.
Please click here for advice to help you find the right type of care.