13 (1) Every individual, other than an individual to whom section 12 applies, shall pay to the Provincial Minister in each taxation year the aggregate of, (a) on account of tax payable under this Act for that year, (i) on or before the 15th day of March, June, September and December in the taxation year, an amount equal to one-quarter of, (A) the amount estimated by the individual under section 151 of the Federal Act, as it applies for the purposes of this Act, to be the tax payable by the individual under this Act for the taxation year, or (B) the individual’s instalment base under this Act for the immediately preceding taxation year, or (ii) on or before, (A) the 15th day of March and June in the taxation year, an amount equal to one-quarter of the individual’s instalment base for the second preceding taxation year, and (B) the 15th day of September and December in the year, an amount equal to one-half of the amount, if any, by which the individual’s instalment base for the preceding taxation year exceeds one-half of the individual’s instalment base for the second preceding taxation year, plus, (b) on or before the 30th day of April in the next following year, the remainder of the tax as estimated under section 151 of the Federal Act, as it applies for the purposes of this Act.  1993, c. 29, s. 9; 1996, c. 24, s. 15 (1); 2004, c. 16, s. 3. Instalment base (1.1) In this section, the instalment base of an individual for a taxation year means the amount determined in the prescribed manner to be his or her instalment base for the year.  1993, c. 29, s. 9; 2004, c. 16, s. 3. Mutual fund trusts (2) Despite subsection (1), the amount payable by a mutual fund trust, within the meaning of subsection 132 (6) of the Federal Act, to the Provincial Minister on or before any day referred to in clause (1) (a) in a taxation year shall be deemed to be the amount, if any, by which, (a) the amount so payable otherwise determined under that subsection, exceeds, (b) 25 per cent of the trust’s capital gains refund (within the meaning assigned by subsection 4 (8)) for the taxation year.  R.S.O. 1990, c. I.2, s. 13 (2); 1993, c. 29, s. 2; 2004, c. 16, s. 3. Idem, where collection agreement (3) Where a collection agreement is entered into, an individual to whom subsection (1) applies shall pay an amount under clause (a) thereof computed in respect of the same year as the amount is computed that the individual is liable to pay under subsection 156 (1) of the Federal Act.  R.S.O. 1990, c. I.2, s. 13 (3); 1996, c. 24, s. 15 (2); 2004, c. 16, s. 3. When no instalment required (4) Where no federal instalments are required pursuant to section 156.1 of the Federal Act, the requirements for payment by instalments under sections 12 and 13 of this Act are not applicable, and the individual shall on or before the 30th day of April next following the taxation year pay to the Provincial Minister the individual’s estimated tax payable for that taxation year.  R.S.O. 1990, c. I.2, s. 13 (4); 1993, c. 29, s. 2; 2004, c. 16, s. 3. Section Amendments with date in force (d/m/y) 1993, c. 29, s. 2 - 14/12/1993; 1993, c. 29, s. 9 - 10/06/1993; 1996, c. 24, s. 15 (1) - 1/07/1994; 1996, c. 24, s. 15 (2) - 1/01/1992 2004, c. 16, s. 3
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