# The Industrial Tribunals (Interest) Order 1990, Article 3: Computation of interest


(1) Subject to paragraphs (2) and (3) of this Article and to Article 11 below, where the whole or any part of a sum of money payable by virtue of a relevant decision of a tribunal remains unpaid on the calculation day the sum of money remaining unpaid on the calculation day shall carry interest at the stipulated rate of interest from the calculation day (including that day).
(2) Where, after the calculation day, a party pays to another party some but not all of such a sum of money remaining unpaid on the calculation day, then beginning with the day on which the payment is made interest shall continue to accrue only on that part of the sum of money which then remains unpaid.
(3) For the purposes of the computation of interest under this Order, there shall be disregarded—
(a) any part of a sum of money which pursuant to the Employment Protection (Recoupment of Unemployment Benefit and Supplementary Benefit) Regulations 1977 has been claimed by the Secretary of State in a recoupment notice; and
(b) any part of a sum of money which the party required to pay the sum of money is required, by virtue of any provision contained in or having effect under any enactment, to deduct and pay over to a public authority in respect of income tax or contributions under Part I of the Social Security Act 1975.

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Source: https://www.legislation.gov.uk/uksi/1990/479/article/3 (the official version)
Page: https://openlegislation.uk/industrial-tribunals-interest-order-1990/article-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.