http://www.legislation.gov.uk/ukpga/2009/4/section/742Corporation Tax Act 2009An Act to restate, with minor changes, certain enactments relating to corporation tax; and for connected purposes.texttext/xmlenStatute Law Database2025-10-17Expert Participation2025-04-01 Corporation Tax Act 2009s. 1094(2A)-(2C)Finance Act 2012Sch. 3 para. 13(3)Corporation Tax Act 2009s. 1106(4A)-(4C)Finance Act 2012Sch. 3 para. 14(3)Corporation Tax Act 2009s. 322(2A)(zb)Finance Act 2016s. 73(5)Corporation Tax Act 2009s. 1058B(5)(ea)Neonatal Care (Leave and Pay) Act 2023Sch. para. 57s. 3(3)reg. 2 Part 8Chapter 57421For the purposes of this Part, the tax written-down value of an intangible fixed asset to which section 729 (writing down on accounting basis) applies is the cost of the asset recognised for tax purposes, less the total net debits brought into account for tax purposes previously in respect of the asset.2For the purposes of subsection (1) the cost of the asset recognised for tax purposes is the same as the amount of the expenditure on the asset that is capitalised for accounting purposes.3Subsection (2) is subject to any adjustments required by this Part or Part 4 of TIOPA 2010 (provision not at arm's length).4For the purposes of subsection (1) “the total net debits brought into account for tax purposes previously in respect of the asset”, means the total debits so brought into account, less the total credits so brought into account (if any).5In the case of an asset that has been the subject of a part realisation, this section is subject to section 744.6In the case of an asset that has been subject to adjustment on a change of accounting policy, this section is subject to Chapter 15 (adjustments on a change of accounting policy).Pt. 8 modified (1.1.2010) by Northern Rock plc (Tax Consequences) Regulations 2009 (S.I. 2009/3227), regs. 1, 6(1)Pt. 8 modified (with effect in accordance with s. 148 of the amending Act) by Finance Act 2012 (c. 14), s. 88(1)(2)(7) (with s. 147, Sch. 17)Pt. 8 modified (1.10.2011) by Postal Services Act 2011 (c. 5), s. 93(2)(3), Sch. 2 para. 6(1); S.I. 2011/2329, art. 3Pt. 8 modified (with effect in accordance with s. 1184(1) of the amending Act) by Corporation Tax Act 2010 (c. 4), ss. 601, 1184(1) (with Sch. 2)Pt. 8 modified (15.11.2011 for specified purposes, 30.3.2012 for E.W.) by Localism Act 2011 (c. 20), ss., 240(5)(o), Sch. 24 para. 1(3); S.I. 2012/628, art. 3(b)Words in s. 742(3) substituted (with effect in accordance with s. 381(1) of the amending Act) by Taxation (International and Other Provisions) Act 2010 (c. 8), s. 381(1), Sch. 8 para. 145(1), (2) (with Sch. 9 paras. 1-9, 22)Pt. 8 modified (6.4.2020) by Finance Act 2019 (c. 1), Sch. 5 paras. 35, 45 (with Sch. 5 para. 36)Pt. 8 modified (1.4.2012) by Budget Responsibility and National Audit Act 2011 (c. 4), s. 29, Sch. 4 para. 3(1); S.I. 2011/2576, art. 5