The Council Tax Reduction Schemes and Prescribed Requirements (Wales) Regulations 2013

Disregard of changes in tax, contributions etc

22.  In calculating the applicant’s income an authority may disregard any legislative change—

(a) in the basic or other rates of income tax;

(b) in the amount of any personal tax relief;

(c) in the rates of social security contributions payable under the SSCBA or in the lower earnings limit or upper earnings limit for Class 1 contributions under that Act, the lower or upper limits applicable to Class 4 contributions under that Act or the amount specified in section 11(4) of that Act (small earnings exception in relation to Class 2 contributions);

(d) in the amount of tax payable as a result of an increase in the weekly rate of Category A, B, C or D retirement pension or any addition thereto or any graduated pension payable under the SSCBA;

(e) in the maximum rate of child tax credit or working tax credit,

for a period not exceeding 30 reduction weeks beginning with the reduction week immediately following the date from which the change is effective.