Subject to the provisions of this regulation, a change of circumstances which affects entitlement to council tax reduction is to take effect for the purpose of calculating entitlement to council tax reduction from the first day of the reduction week F1starting immediately after the date on which the change actually occurs, and where that change is cessation of entitlement to any benefit under the benefit Acts, the date on which the change actually occurs is the day immediately following the last day of entitlement to that benefit.

Subject to paragraph (3), where the change of circumstances is a change in the amount of council tax payable, it takes effect for the purpose of calculating entitlement to council tax reduction from the day on which it actually occurs.

Where the change of circumstances is a change in the amount a person is liable to pay in respect of council tax in consequence of regulations under section 80 of the Act M1 (reduced amounts of council tax) or changes in the discount to which a dwelling may be subject under sections 79 M2 of that Act, it takes effect for the purpose of calculating entitlement to council tax reduction from the day on which the change in amount has effect.

Where the change of circumstances is an amendment to these Regulations, it takes effect for the purpose of calculating entitlement to council tax reduction from the date on which the amendment to these Regulations comes into force.

Where the change of circumstances is the applicant's acquisition of a partner, it takes effect for the purpose of calculating entitlement to council tax reduction on the day on which the acquisition takes place.

Where the change of circumstances is the death of an applicant's partner or their separation, it takes effect for the purpose of calculating entitlement to council tax reduction on the day the death or separation occurred.

If two or more changes of circumstances occurring in the same reduction week would, but for this paragraph, take effect for the purpose of calculating entitlement to council tax reduction in different reduction weeks in accordance with paragraphs (1) to (6) they take effect from the day to which the appropriate paragraph from (2) to (6) refers, or, where more than one day is concerned, from the earlier day.

Where the change of circumstances is that income, or an increase in the amount of income, other than a benefit or an increase in the amount of a benefit under the 1992 Act F3, Part 4 of the Welfare Reform Act 2012 or article 24A of the Armed Forces and Reserve Forces (Compensation Scheme) Order 2011, is paid in respect of a past period and there was no entitlement to income of that amount during that period, it takes effect for the purpose of calculating entitlement to council tax reduction from the first day on which the income, had it been paid in that period at intervals appropriate to that income, would have been taken into account for the purposes of these Regulations.

Without prejudice to paragraph (8), where the change of circumstances is the payment of income or arrears of income in respect of a past period, it takes effect for the purpose of calculating entitlement to council tax reduction from the first day on which the income, had it been timeously paid in that period at intervals appropriate to that income, would have been taken into account for the purposes of these Regulations.