To get a Severe Disability Premium (SDP) you have to be getting an income-related benefit. This could be Income Support, income-related Employment and Support Allowance, income-based Jobseeker's Allowance, Guarantee Pension Credit, or Housing Benefit.
Who qualifies for severe disablement allowance?
It applies to most people aged 16 or over who have not reached State Pension age. Some individual benefits are not affected, but it may affect the total amount of benefit you get.
Can you get SDP on universal credit?
The Severe Disability Premium does not exist in Universal Credit. If you were entitled to a Severe Disability Premium on Income Support, income-related Employment and Support Allowance (ESA), or income-related Jobseeker's Allowance at the time you claimed Universal Credit, you are entitled to transitional protection.