# Finance Act 2009, Paragraph 8


If any amount of the tax is unpaid after the end of the period of 12 months beginning with the penalty date, P is liable to a penalty of 5% of that amount.

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Source: https://www.legislation.gov.uk/ukpga/2009/10/schedule/56/paragraph/8 (the official version)
Page: https://openlegislation.uk/finance-act-2009/schedule-56/paragraph-8
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.