Subject to the following provisions of this Act, and to any other provisions of the Taxes Acts allowing a longer period in any particular class of case, an assessment to tax may be made at any time not later than six years after the end of the chargeable period to which the assessment relates F1... .

An objection to the making of any assessment on the ground that the time limit for making it has expired shall only be made on an appeal against the assessment.

Where income to which this section applies is received in a year of assessment subsequent to that for which it is assessable, assessments to income tax as respects that income may be made at any time within six years after the year of assessment in which it was received.

An assessment on any person (in this section referred to as “the person in default”) for the purpose of making good to the Crown a loss of tax attributable to his fraudulent or negligent conduct or the fraudulent or negligent conduct of a person acting on his behalf may be made at any time not later than twenty years after the end of the chargeable period to which the assessment relates.

Where the person in default is an individual who carried on a trade or profession in partnership with another individual, or with other persons at least one of whom is an individual, at any time in the year for which the assessment is made, an assessment in respect of the profits or gains of the trade or profession for the purpose mentioned in subsection (1) above may be made not only on the person in default but also on his partner or, as the case may be, on any of his partners who is an individual.

If the person on whom the assessment is made so requires, in determining the amount of the tax to be charged for any chargeable period in any assessment made for the purpose mentioned in subsection (1) above, effect shall be given to any relief or allowance to which he would have been entitled for that chargeable period on a claim or application made within the time allowed by the Taxes Acts.

In subsection (3) above, “claim or application” does not include an election under section 257BA of the principal Act (elections as to transfer of married couple’s allowance).

Any act or omission such as is mentioned in section 98B below on the part of a grouping (as defined in that section) or member of a grouping shall be deemed for the purposes of subsection (1) above to be the act or omission of each member of the grouping.

For the purpose of the charge of tax on the executors or administrators of a deceased person in respect of the income, or chargeable gains, which arose or accrued to him before his death, the time allowed by section 34, 35 or 36 above shall in no case extend beyond the end of the third year next following the year of assessment in which the deceased died .

F13... , for the purpose of making good to the Crown any loss of tax attributable to the F14fraudulent or negligent conduct of a person who has died, an assessment on his personal representatives to tax for any year of assessment ending not earlier than six years before his death may be made at any time before the end of the third year next following the year of assessment in which he died.

In F15this section “tax” means income tax or capital gains tax .

Any act or omission such as is mentioned in section 98B below, on the part of a grouping (as defined in that section) or member of a grouping shall be deemed for the purposes of subsection (2) above to be the act or omission of each member of the grouping.

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