23 (1) Subject to the regulations, each amount expressed in dollars in the following provisions shall be adjusted in accordance with this section for every taxation year ending after December 31, 2009 or for every taxation year otherwise indicated: 1. Paragraphs 1 and 2 of subsection 6 (1) with respect to taxation years ending after December 31, 2014. 1.1 Paragraph 3 of subsection 6 (1), except for the amount of $150,000, with respect to taxation years ending after December 31, 2014. 2. Subsections 9 (2) to (6), (8), (10), (11), (12) and (20). 2.1 Subsection 9 (6.1) with respect to taxation years ending after December 31, 2017. 3. Paragraphs 118.2 (2) (b.1), (l.5) and (l.7) of the Federal Act, as they apply in determining the amount of an individual’s medical expense tax credit deductible under subsection 9 (20). 4. Subclauses 16 (1) (a) (ii) and (b) (ii) with respect to taxation years ending after December 31, 2010. 4.1 Subsection 19.2 (4) with respect to taxation years ending after December 31, 2010. 5. Subsections 20 (4) and (5). 6., 7.  Repealed: 2010, c. 26, Sched. 20, s. 1 (3). 7.1  Repealed: 2016, c. 5, Sched. 28, s. 13 (3). 7.2 Subsections 103.8 (3), 103.9 (3) and (4), 103.10 (3) and (4) and 103.12 (3) with respect to taxation years ending on or after December 31, 2010 that would be base taxation years under Part IV.1 if that Part came into effect at the beginning of 2011. 7.3 Subsection 104 (5) with respect to taxation years ending on or after December 31, 2014 that are base taxation years under Part V. 8. Subsection 104.11 (5) with respect to taxation years ending on or after December 31, 2010 that are base taxation years under Part V.3. 8.1 Subsection 104.22 (2) with respect to taxation years ending on or after December 31, 2010 that are base taxation years under Part V.6. 9. Subsections 104.37 (1) and (4) with respect to taxation years ending on or after December 31, 2010 that are base taxation years under Part V.8. 10. Subsections 104.38 (1) and (2.1) with respect to taxation years ending on or after December 31, 2010 that are base taxation years under Part V.8.  2007, c. 11, Sched. A, s. 23 (1); 2009, c. 18, Sched. 28, s. 7; 2009, c. 34, Sched. U, s. 5 (1, 2); 2010, c. 1, Sched. 29, s. 2; 2010, c. 21, s. 1 (1); 2010, c. 23, s. 1; 2010, c. 26, Sched. 20, s. 1 (1-5); 2011, c. 9, Sched. 40, s. 3 (1-3); 2012, c. 9, s. 5; 2014, c. 8, s. 3; 2014, c. 7, Sched. 29, s. 6 (1); 2016, c. 5, Sched. 28, s. 13; 2017, c. 34, Sched. 40, s. 5. (1.1) Repealed:  2010, c. 26, Sched. 20, s. 1 (6). Calculation of adjusted income (2) Each amount referred to in a provision listed in subsection (1), other than a provision to which subsection (3.1) applies, shall be adjusted to the amount calculated using the formula, A + [A × (B/C – 1)] in which, “A” is the amount that would have been used for the preceding taxation year if it had not been rounded to a whole dollar, “B” is the Consumer Price Index for the 12-month period that ended on September 30 of the previous year, and “C” is the Consumer Price Index for the 12-month period preceding the 12-month period mentioned in the description of  “B”. 2007, c. 11, Sched. A, s. 23 (2); 2010, c. 26, Sched. 20, s. 1 (7). Same (3) For the purposes of subsection (2), the amount of “(B/C – 1)” shall be adjusted each year in such manner as may be prescribed and rounded to the nearest thousandth or, if the result obtained is equidistant between two consecutive thousandths, to the higher thousandth.  2007, c. 11, Sched. A, s. 23 (3). Calculation of adjusted income, certain tax credits (3.1) Each amount referred to in a provision listed in paragraph 7.2, 7.3, 8, 8.1, 9 or 10 of subsection (1) shall be adjusted to the amount calculated using the formula, D + [D × (E/F – 1)] in which, “D” is the amount that would have been used for the base taxation year if it had not been rounded to a whole dollar, “E” is the Consumer Price Index for the 12-month period that ended on September 30 of the base taxation year, and “F” is the Consumer Price Index for the 12-month period preceding the 12-month period mentioned in the description of “E”. 2010, c. 26, Sched. 20, s. 1 (8, 9); 2011, c. 9, Sched. 40, s. 3 (4); 2014, c. 7, Sched. 29, s. 6 (2). Same (3.2) For the purposes of subsection (3.1), the amount of “(E/F – 1)” shall be adjusted each year in such manner as may be prescribed and rounded to the nearest thousandth or, if the result obtained is equidistant between two consecutive thousandths, to the higher thousandth.  2010, c. 26, Sched. 20, s. 1 (10). Rounding (4) If an amount as adjusted under this section is not a multiple of one dollar, it shall be rounded to the nearest multiple of one dollar or, if the amount is equidistant between two consecutive whole dollar amounts, to the higher dollar amount.  2007, c. 11, Sched. A, s. 23 (4). Consumer Price Index (5) In this section, the Consumer Price Index for any 12-month period is the result arrived at by, (a) determining the sum of the Consumer Price Index for Ontario as published by Statistics Canada under the authority of the Statistics Act (Canada), adjusted in the prescribed manner, for each month in that period; (b) dividing the sum obtained under clause (a) by 12; and (c) rounding the result obtained under clause (b) to the nearest one-thousandth or, if the result obtained is equidistant from two consecutive thousandths, to the higher thousandth.  2007, c. 11, Sched. A, s. 23 (5). Section Amendments with date in force (d/m/y) 2009, c. 18, Sched. 28, s. 7 - 01/01/2009; 2009, c. 34, Sched. U, s. 5 (1-3) - 15/12/2009 2010, c. 1, Sched. 29, s. 2 - 01/01/2010; 2010, c. 21, s. 1 (1, 2) - 29/11/2010; 2010, c. 23, s. 1
-29/11/2010; 2010, c. 26, Sched. 20, s. 1 (1-10) - 08/12/2010 2011, c. 9, Sched. 40, s. 3 (1, 4) - 12/05/2011; 2011, c. 9, Sched. 40, s. 3 (2, 3) - 01/07/2011 2012, c. 9, s. 5
- 01/01/2012 2014, c. 8, s. 3
- 01/01/2014; 2014, c. 7, Sched. 29, s. 6 (1, 2) - 01/07/2015 2016, c. 5, Sched. 28, s. 13 (1) - 01/01/2018; 2016, c. 5, Sched. 28, s. 13 (2) - 19/04/2016; 2016, c. 5, Sched. 28, s. 13 (3) - 01/01/2017 2017, c. 34, Sched. 40, s. 5 - 14/12/2017 Division C — Ontario Health Premium Ontario Health Premium