Tariff income rules apply to all the income-related benefits for which the Department is responsible: income support; income-based jobseekers allowance; income-based employment and support allowance; pension credit; housing benefit; and council tax benefit.
For the information about tariff income, I refer the hon. Member to the written answer given to the hon. Member for Newcastle upon Tyne, Central (Jim Cousins) on 15 December 2008, Official Report, columns 418-19W.