(1) On or before the due date relating to a return period, a principal shall make a return to the Collector-General of all relevant payments made by him or her during that return period and shall specify on that return the amount of his or her tax liability under this Chapter.
(a) For the purposes of subsection (1), where the Revenue Commissioners issue, under section 530D(3), a deduction summary to a principal for a return period, the details on that summary shall, for the purposes of the Tax Acts, be deemed to be a return made by the principal to the Collector-General in respect of the return period and the amount of tax specified on that summary shall be deemed to be the amount specified by the principal of his or her tax liability under this Chapter in respect of that return period.
(b) Paragraph (a) does not apply where a principal is required to amend the details on a deduction summary in accordance with regulations made under this section and to submit a return under subsect
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