Part 2

Plant and machinery allowances
Chapter 5

Allowances and charges

Annual investment allowance

Sixth restriction: allocation where profits chargeable at NI rate
51JA
1
This section applies if—
a
section 51B, 51C, 51D or 51E applies, and
b
the relevant AIA qualifying expenditure for the purposes of the section in question includes expenditure incurred in a low-rate year in respect of an
NI
rate activity.
2
For the purposes of this section expenditure is “incurred in a low-rate year” if it is incurred in a financial year for which the Northern Ireland rate is lower than the main rate.
3
The maximum annual investment allowance that may be allocated under section 51B, 51C, 51D or 51E to AIA qualifying expenditure incurred in a low-rate year in respect of qualifying activities other than
NI
rate activities is determined by the formula—
A × (T − NI)/T
where—
A is the amount of the single annual investment allowance that would otherwise be available for allocation;
T is so much of the relevant AIA qualifying expenditure for the purposes of the section in question as is incurred in a low-rate year;
NI
is so much of the relevant AIA qualifying expenditure for the purposes of the section in question as is expenditure incurred in a low-rate year in respect of an
NI
rate activity.
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 para. 10 (with s. 38(2) ); 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 para. 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
Ss. 51A-51N and cross-heading inserted (with effect in accordance with Sch. 24 para. 23 to the amending Act) by Finance Act 2008 (c. 9), Sch. 24 para. 3
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
Pt. 2 modified (21.7.2009) by Finance Act 2009 (c. 10), s. 24
Pt. 2 modified (17.7.2013) by Finance Act 2013 (c. 29), s. 73(7)-(11) (with s. 73(6))
S. 51JA inserted (with effect in accordance with s. 5 of the amending Act) by Corporation Tax (Northern Ireland) Act 2015 (c. 21), Sch. 1 para. 5
Pt. 2 modified (10.6.2021) by Finance Act 2021 (c. 26), s. 9(1)(a)
Pt. 2 modified (11.7.2023) by Finance (No. 2) Act 2023 (c. 30), s. 7