Part 2

Plant and machinery allowances
Chapter 3

Qualifying expenditure

Expenditure on thermal insulation and personal security

Thermal insulation of ... buildings
28
1
This section applies to expenditure if a person carrying on a qualifying activity other than a UK property business or an overseas property business has incurred it in adding insulation against loss of heat to a building occupied by him for the purposes of the qualifying activity.
2
This section also applies to expenditure if a person carrying on a qualifying activity consisting of a UK property business or an overseas property business has incurred it in adding insulation against loss of heat to a building let by him in the course of the business.
2A
Subsection (2) is subject to section 35 (expenditure on plant or machinery for use in dwelling-house not qualifying expenditure).
2B
This section does not apply to expenditure within subsection (2) if a deduction for that expenditure is allowable—
a
under
section 251 of CTA 2009
, or
b
under section 312 of
ITTOIA
2005,
(deductions for expenditure on energy-saving items).
2C
For the purposes of subsection (2B), whether such a deduction is allowable is to be determined without regard to subsection (1)(e) of the section in question.
3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Words in s. 28(2) inserted (with effect as mentioned in s. 69(2) of the amending Act) by Finance Act 2001 (c. 9), s. 69(1), Sch. 21 para. 1
Pt. 2 modified (24.2.2003) by Proceeds of Crime Act 2002 (c. 29), s. 458(1), Sch. 10 para. 12 (with Sch. 10 para. 17(1)); S.I. 2003/120, art. 2, Sch. (with arts. 3 4) (as amended (20.2.2003) by S.I. 2003/333, art. 14)
S. 45H(2) modified (with effect in accordance with s. 167 of the amending Act) by Finance Act 2003 (c. 14) , Sch. 30 para. 7
Pt. 2 restricted (5.10.2004) by Energy Act 2004 (c. 20) , s. 198(2) , Sch. 4 para. 4 ; S.I. 2004/2575 , art. 2(1) , Sch. 1
Pt. 2 modified (5.10.2004) by Energy Act 2004 (c. 20) , s. 198(2) , Sch. 9 paras. 9(2), 21(2) (with s. 38(2)); S.I. 2004/2575, art. 2(1) , Sch. 1
Pt. 2 restricted (5.10.2004) by Energy Act 2004 (c. 20) , s. 198(2) , Sch. 9 paras. 10, 22 (with s. 38(2) ); S.I. 2004/2575 , art. 2(1) , Sch. 1
Word in s. 28(2) substituted (with effect in accordance with s. 883(1) of the amending Act) by Income Tax (Trading and Other Income) Act 2005 (c. 5), , Sch. 1 para. 531 (with Sch. 2)
Word in s. 28 heading omitted (with effect in accordance with s. 71(8) of the amending Act) by virtue of Finance Act 2008 (c. 9), s. 71(6)
Words in s. 28(1) substituted (with effect in accordance with s. 71(8) of the amending Act) by Finance Act 2008 (c. 9), s. 71(2)(a)
Word in s. 28(1) substituted (with effect in accordance with s. 71(8) of the amending Act) by Finance Act 2008 (c. 9), s. 71(2)(b)
Words in s. 28(1) substituted (with effect in accordance with s. 71(8) of the amending Act) by Finance Act 2008 (c. 9), s. 71(2)(c)
Word in s. 28(2) substituted (with effect in accordance with s. 71(8) of the amending Act) by Finance Act 2008 (c. 9), s. 71(3)
S. 28(2A)-(2C) inserted (with effect in accordance with s. 71(8) of the amending Act) by Finance Act 2008 (c. 9), s. 71(4)
S. 28(3) omitted (with effect in accordance with s. 71(8) of the amending Act) by virtue of Finance Act 2008 (c. 9), s. 71(5)
Pt. 2 modified (22.7.2008) by Crossrail Act 2008 (c. 18), Sch. 13 para. 19
Pt. 2 modified (22.7.2008) by Crossrail Act 2008 (c. 18), Sch. 13 para. 35
Pt. 2 modified (22.7.2008) by Crossrail Act 2008 (c. 18), Sch. 13 paras. 36, 37
Words in s. 28(2B)(a) substituted (with effect in accordance with s. 1329(1) of the amending Act) by Corporation Tax Act 2009 (c. 4), s. 1329(1), Sch. 1 para. 480 (with Sch. 2 Pts. 1, 2)
Pt. 2 modified (21.7.2009) by Finance Act 2009 (c. 10), s. 24
Words in s. 27 cross-heading substituted (with effect in accordance with Sch. 39 para. 35 of the amending Act) by Finance Act 2012 (c. 14), Sch. 39 para. 34(3)(b)
Pt. 2 modified (17.7.2013) by Finance Act 2013 (c. 29), s. 73(7)-(11) (with s. 73(6))
Pt. 2 modified (10.6.2021) by Finance Act 2021 (c. 26), s. 9(1)(a)
Words in s. 28(1) substituted (for the purposes of corporation tax, in relation to accounting periods beginning on or after 1.4.2025 and, for the purposes of income tax, in relation to periods of account beginning on or after 6.4.2025) by Finance Act 2025 (c. 8), Sch. 5 paras. 8(5)(a), 12(3) (with Sch. 5 paras. 15, 18, 19)
Words in s. 28(2) substituted (for the purposes of corporation tax, in relation to accounting periods beginning on or after 1.4.2025 and, for the purposes of income tax, in relation to periods of account beginning on or after 6.4.2025) by Finance Act 2025 (c. 8), Sch. 5 paras. 8(5)(a), 12(3) (with Sch. 5 paras. 15, 18, 19)
Words in s. 28(1) substituted (for the purposes of corporation tax, in relation to accounting periods beginning on or after 1.4.2025 and, for the purposes of income tax, in relation to periods of account beginning on or after 6.4.2025) by Finance Act 2025 (c. 8), Sch. 5 paras. 8(5)(b), 12(3) (with Sch. 5 paras. 15, 18, 19)
Words in s. 28(2) substituted (for the purposes of corporation tax, in relation to accounting periods beginning on or after 1.4.2025 and, for the purposes of income tax, in relation to periods of account beginning on or after 6.4.2025) by Finance Act 2025 (c. 8), Sch. 5 paras. 8(5)(b), 12(3) (with Sch. 5 paras. 15, 18, 19)