In this Act, unless the context otherwise requires—

• “Act” includes an Act of the Parliament of Northern Ireland and “enactment” shall be construed accordingly,

• “the Board” means the Commissioners of Inland Revenue,

• “body of persons” means any body politic, corporate or collegiate, and any company, fraternity, fellowship and society of persons, whether corporate or not corporate,

• F23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

• “chargeable gain” has the same meaning as in F12the F11992 Act,

• “chargeable period” means a year of assessment or a company’s accounting period,

• “collector” means any collector of taxes,

• “company” has the meaning given by F25section 992(1) of ITA 2007 (with section 468 of the principal Act)F3... ,

• F16“the General Commissioners Regulations” means the General Commissioners (Jurisdiction and Procedure) Regulations 1994,

• “incapacitated person” means any infant, person of unsound mind, lunatic, idiot or insane person,

• F11“infant”, in relation to Scotland, except in section 73 of this Act, means a person under legal disability by reason of nonage, and, in the said section 73, means a person under the age of 18 years.

• “inspector” means any inspector of taxes,

• F22“ITEPA 2003” means the Income Tax (Earnings and Pensions) Act 2003,

• F24“ITTOIA 2005” means the Income Tax (Trading and Other Income) Act 2005,

• F26“ITA 2007” means the Income Tax Act 2007,

• F13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

• F20“partnership return” has the meaning given by section 12AA(10A) of this Act,

• “the principal Act” means the Income and Corporation Taxes Act F21988,

• F18“the relevant trustees”, in relation to a settlement, shall be construed in accordance with section 7(9) of this Act.

• “return” includes any statement or declaration under the Taxes Acts,

• F17“the Special Commissioners Regulations” means the Special Commissioners (Jurisdiction and Procedure) Regulations 1994,

• F19“successor”, in relation to a person who is required to make and deliver, or has made and delivered, F21a partnership return, and “predecessor” and “successor”, in relation to the successor of such a person, shall be construed in accordance with section 12AA(11) of this Act;

• “tax”, where neither income tax nor capital gains tax nor corporation tax F4nor development land tax is specified, means any of those taxes F5except that in sections 20, 20A, 20B F27... and 20D it does not include development land tax,

• C1“the Taxes Acts” means this Act and—

  1. a

     the Tax Acts F14... and

  2. b

     F6the Taxation of Chargeable Gains Act 1992 and all other enactments relating to capital gains tax,

  3. c

     F7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

• F8“the 1992 Act ” means the Taxation of Chargeable Gains Act 1992

• C2“trade” includes every trade, manufacture, adventure or concern in the nature of trade .

For the purposes of this Act, a person shall be deemed not to have failed to do anything required to be done within a limited time if he did it within such further time, if any, as the Board or the Commissioners or officer concerned may have allowed; and where a person had a reasonable excuse for not doing anything required to be done he shall be deemed F9not to have failed to do it unless the excuse ceased and, after the excuse ceased, he shall be deemed not to have failed to do it if he did it without unreasonable delay after the excuse had ceased:

F10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

For the purposes of this Act, the amount of tax covered by any assessment shall not be deemed to be finally determined until that assessment can no longer be varied, whether by any Commissioners on appeal or by the order of any court.