s 143 Amount payable
(1) NHS England must— (a) calculate the amount which each provider who is to be subject to a levy under section 139 for a financial year is to be liable to pay in respect of that year, and (b) notify the provider of that amount and the date or dates on which it, or instalments of it, will become payable. (2) If the provider is to be subject to the levy for only part of the financial year, it is to be liable to pay only the amount which bears to the amount payable for the whole financial year the same proportion as the part of the financial year for which the provider is to be subject to the levy bears to the whole financial year. (3) The amount which a provider is liable to pay may be zero. (4) Subsection (5) applies if, during a financial year in which NHS England is imposing a levy under section 139, it becomes satisfied that the risk of a provider who is subject to the levy going into special administration has changed by reference to what it was— (a) at the start of the year, or (b) if NHS England has already exercised the power under subsection (5) in relation to the levy in the case of that provider, at the time it did so. (5) NHS England may notify the provider that NHS England proposes to adjust the amount that the provider is liable to pay so as to reflect the change; and the notice must specify the amount of the proposed adjustment. (6) Following the expiry of the period of 28 days beginning with the day after that on which NHS England sends the notice, it may make the adjustment. (7) In a case within subsection (2), subsection (4) has effect as if references to the financial year were references to the part of the financial year for which the provider is to be subject to the levy. (8) Where a provider who reasonably believes that NHS England has miscalculated the amount notified to the provider under subsection (1) or (5) requests NHS England to recalculate the amount, NHS England must— (a) comply with the request, and (b) send the provider written notice of its recalculation. (9) Subsection (8) does not apply to a request to recalculate an amount in respect of a financial year preceding the one in which the request is made. (10) If the whole or part of the amount which a person is liable to pay is not paid by the date by which it is required to be paid, the unpaid balance carries interest at the rate for the time being specified in section 17 of the Judgments Act 1838; and the unpaid balance and accrued interest are recoverable summarily as a civil debt (but this does not affect any other method of recovery).