This section applies where—
If a claim for relief under section 260 in respect of—
is made on or before the making of the later disposal, section 223 shall not apply in relation to the gain or part of a gain accruing on the later disposal.
If a claim for relief under section 260 in respect of—
is made after the making of the later disposal and subsection (2) above does not apply, it is to be assumed for the purposes of capital gains tax that section 223 never applied in relation to the gain or part of a gain accruing on the later disposal.
All such adjustments shall be made, whether by discharge or repayment of tax, the making of assessments or otherwise, as are required to give effect to subsection (3) above (notwithstanding any limitation on the time within which any adjustment may be made).
Where the later disposal is made by the trustees of a settlement, the references in subsections (2) and (3) above to the making of the later disposal shall be read as references to the making of a claim for relief under section 223 in respect of the gain or part of a gain accruing on that disposal.
If a claim for relief under section 260 in respect of an earlier disposal is revoked, this section shall apply as if the claim had never been made.
This section is subject to section 226B (exception for maintenance funds for historic buildings).