# Stamp Act 1891, Section 15: Stamping after execution.

Extent: E+W+S+N.I.

(1) An unstamped or insufficiently stamped instrument may be stamped after being executed on payment of the unpaid duty and any interest or penalty payable.
(2) Any interest or penalty payable on stamping shall be denoted on the instrument by a particular stamp.

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Source: https://www.legislation.gov.uk/ukpga/Vict/54-55/39/section/15 (the official version)
Page: https://openlegislation.uk/stamp-act-1891/section-15
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.