Paragraph 13
If, in respect of the chargeable period ending on 30th June 1983, any sum is payable by a participator in accordance with section 1 of the M1Petroleum Revenue Tax Act 1980, then, so far as the net amount of that sum is concerned, only one-fifth shall become payable at the time specified in that section and the remaining four-fifths shall be paid in four equal monthly instalments in the months of September to December 1983, inclusive.
The reference in sub-paragraph (1) above to the net amount of any sum payable in accordance with section 1 of the M2Petroleum Revenue Tax Act 1980 is a reference to the sum specified in paragraph (b) of subsection (1) of that section less any amount which is treated as (or deemed to be) paid as part of that sum—
by virtue of section 105(5) of the Finance Act 1980, as applied by paragraph 11(1)(b) above; or
by virtue of paragraph 2(4)(b) above, as applied by paragraph 12(2) above.
Any amount payable by a participator as an instalment by virtue of sub-paragraph (1) above and not paid by him in the month in which it ought to be paid shall carry interest from the end of that month until payment.
Paragraph 15 of Schedule 2 to the principal Act (interest on assessed tax) shall not apply in relation to so much of the tax charged in an assessment on the participator for the chargeable period referred to in sub-paragraph (1) above (excluding and APRT so charged) as is equal to or less than the net amount referred to in that sub-paragraph and payable by him, and in relation to so much if any of that tax as exceeds that net amount paragraph 15 shall apply with the substitution for the words “two months after the end of the period” of the words “ the end of October 1983 ”.
If, in respect of the chargeable period referred to in sub-paragraph (1) above, any amount of tax charged by an assessment to tax or paid on account of tax so charged becomes repayable under any provision of Part I of the principal Act, paragraph 16 of Schedule 2 to the principal Act (interest on such repayments) shall have effect in relation to that amount with the substitution for the words following “per annum” of the words “ from the end of October 1983 unti repayment ”.
Sub-paragraphs (5) to (8) of paragraph 10 above shall apply for the purposes of sub-paragraphs (3) and (5) above asd they apply for the purposes of sub-paragraphs (2) and (4) of paragraph 10.