48.3 (1) This section applies, (a)  if there is an eligible change that results in a change to the assessment of land for the 2013, 2014 or 2015 taxation year; and (b)  if subsection 48.2 (3), (4), (5), (6) or (7) applies with respect to the assessment of the land for the same taxation year. O. Reg. 273/13, s. 5. (2) In this section, “2012 adjusted current value” means, with respect to land, the value that would have been the current value of the land as of January 1, 2012 if an eligible change that affects the assessment for the 2013, 2014 or 2015 taxation year had occurred before the return of the assessment roll for the 2013 taxation year and had been considered in determining the current value of the land as of January 1, 2012; (“valeur actuelle ajustée 2012”) “eligible change” means, subject to subsection (3), (a)  a change with respect to which an additional assessment of land is made under section 33 or 34 of the Act, (b)  a change for which an adjustment is made under section 32 of the Act to the assessment of land, (c)  a change to the state or condition of land that results in the assessment made under section 36 of the Act for the taxation year differing from the assessment made for the previous taxation year, (d)  a change in the classification of land, (e)  a change in the status of land from taxable to tax-exempt or vice-versa, (f)  a change in the valuation approach with respect to whether land is eligible for assessment under section 19.0.1 of the Act, (g)  a change in valuation from current value to current use value, or vice versa, or (h)  a change of the type described in any of clauses (a) to (g) that is made under section 39.1, 40 or 46 of the Act; (“changement admissible”) “MDF” means, in respect of land, the municipal discount factor for the 2013, 2014 and 2015 taxation years as set out in the Table entitled Municipal Discount Factors available on the assessment corporation’s website; (“FAM”) “PLDF” means, in respect of land in non-municipal territory, the provincial land discount factor as set out in the Table entitled
Provincial Land Discount Factors available on the assessment corporation’s website; (“FABP”) “PSDF” means, in respect of land for a particular taxation year, the property-specific discount factor calculated to nine decimal places by dividing “A” by “B” where, “A”  is the assessment of the land as shown on the assessment roll for the 2012 taxation year as adjusted for the purposes of paragraph 1 of subsection 47.1 (1) for the particular taxation year, and “B”  is the assessment of the land that would have been shown on the assessment roll for the particular taxation year if subsection 19.1 (3) of the Act had not applied. (“FAB”) O. Reg. 273/13, s. 5. (3) The following are not eligible changes for the purposes of this section: 1.  A change made to the assessment of land for a taxation year after 2012 that is consequential to the same change made with respect to the current value, classification or liability to taxation of the land used in determining the assessment, or the assessment as adjusted under paragraph 1 of subsection 47.1 (1), of the land for the 2012 taxation year. 2.  A change made to correct an error made in determining the current value of the land as of January 1, 2012, i.  if the same error was not made in determining the assessment, or the assessment as adjusted under paragraph 1 of subsection 47.1 (1), for the 2012 taxation year, or ii.  if the same error was made in determining the assessment, or the assessment as adjusted under paragraph 1 of subsection 47.1 (1), for the 2012 taxation year but the error is not the subject of a request for reconsideration under section 39.1 of the Act, an appeal under section 40 of the Act or an application under section 46 of the Act. 3.  A change made to correct an error made in determining the current value of the land for the purposes of determining the assessment, or the assessment as adjusted under paragraph 1 of subsection 47.1 (1), of the land for the 2012 taxation year if the same error was not made in determining the current value of the land as of January 1, 2012. 4.  A change in valuation from current value to a current value determined in the manner specified in section 45.4, or vice versa. O. Reg. 273/13, s. 5. (4) A reference in this section to an assessment of land shown on the assessment roll for a taxation year is deemed to be a reference to the assessment of the land for the taxation year, (a)  firstly, after any changes to the assessment required as a result of a correction under subsection 32 (1.1) of the Act, a reconsideration under section 39.1 of the Act, an appeal under section 40 of the Act or an application under section 46 of the Act; and (b)  secondly, after any adjustments required under subsection (12). O. Reg. 273/13, s. 5. (5) Except as otherwise provided in this section, the eligible increase for the purposes of section 19.1 of the Act in respect of an eligible change to land that affects the assessment for 2013, 2014 or 2015 is the amount by which the 2012 adjusted current value of the land exceeds whichever of the following amounts applies in respect of the eligible change: 1.  If the land was vacant land and a new building or structure is erected on it or if the land was vacant and a building that was substantially unusable is renovated and commenced to be used, the amount is the 2012 adjusted current value of the land multiplied by the MDF for the municipality and the property class applicable to the land after the new building or structure is erected or renovated or, if the land is in non-municipal territory, by the PLDF for that property class. 2.  If the land is used for farming purposes but is otherwise vacant land and if a new building or structure is erected on it, the amount is the 2012 adjusted current value of the land multiplied by the MDF for the municipality and the property class applicable to the land after the new building or structure is erected or, if the land is non-municipal territory, by the PLDF for that property class. 3.  If the land ceases to be exempt from taxation, the amount is the 2012 adjusted current value of the land multiplied by, i.  the PSDF for the land if the land is to be classified in a property class or subclass that already exists on the property, or ii.  in any other case, the MDF for the municipality and the property class applicable to the land after the land becomes taxable or, if the land is in non-municipal territory, the PLDF for that property class. 4.  If the land becomes exempt from taxation, the amount is the 2012 adjusted current value of the land multiplied by, i.  the PSDF for the land if an exempt portion of the property already exists, or ii.  in any other case, the MDF for exempt land in the municipality or, if the land is in non-municipal territory, the PLDF for exempt land in the territory. 5.  The amount is the 2012 adjusted current value of the land multiplied by the MDF for the municipality and the property class applicable after the eligible change or, if the land is in non-municipal territory, the PLDF for that property class, i.  if the land is vacant land and is subject to a severance, ii.  if the land is divided into one or more lots by a plan of subdivision, or iii.  if the land is a unit created by a condominium plan. 6.  If, as a result of the demolition of one or more buildings or structures, the land is in an excess land subclass created as a result of the demolition, the amount is the 2012 adjusted current value of the land multiplied by the PSDF for the corresponding property class. 7.  If, as a result of the demolition of one or more buildings or structures, the land is added to an existing excess land subclass, the amount is the 2012 adjusted current value of the land multiplied by the PSDF for the existing excess land subclass. 8.  If the land becomes classified in a different property class, the amount is the 2012 adjusted current value of the land multiplied by, i.  the PSDF for the land, A.  if the land is to be classified in a property class or subclass that already exists on the land, B.  if the land is eligible for a payment in lieu of taxes in a property class or subclass that already exists on the land, C.  if the land is classified in the corresponding new construction property class prescribed by section 15 of Ontario Regulation 400/98 (Tax Matters — Tax Rates for School Purposes) made under the Education Act, or D.  if the new multi-residential class applies to a portion of the land and the multi-residential property class already exists on the property, or ii.  in any other case, the MDF for the municipality and the property class applicable after the change in the property class or, if the land is in non-municipal territory, the PLDF for that property class. 9.  If the land was omitted from the assessment roll and is being added, the amount is determined as follows: i.  If the land is being added to a parcel or a portion of a parcel that is in the same property class or subclass, the amount is the 2012 adjusted current value of the land being added multiplied by the PSDF for the parcel or portion of the parcel in that same property class or subclass. ii.  If the land is being added to a parcel or a portion of a parcel that is in a different property class or subclass, the amount is the 2012 adjusted current value of the land being added multiplied by the MDF for the municipality and property class applicable to the land being added or, if the land is in non-municipal territory, the PLDF for that property class. iii.  If the land is an entire parcel, the amount is the 2012 adjusted current value of the land multiplied by the MDF for the municipality and property class applicable to the land or, if the land is in non-municipal territory, the PLDF for that property class. 10.  If subsection 3 (4), (5) or (6) or section 19.0.1 of the Act or section 42.5 of this Regulation cease to apply to the land, the amount is the 2012 adjusted current value of the land multiplied by the MDF for the municipality and property class applicable to the land after that section or subsection ceases to apply to the land or, if the land is in non-municipal territory, the PLDF for that property class. 11.  If the land is leased by the Greater Toronto Airports Authority or the Ottawa International Airport Authority, the amount is the 2012 adjusted current value of the land multiplied by the MDF for the particular airport authority. 12.  If the eligible change is not described in any of paragraphs 1 to 11, the amount is the 2012 adjusted current value of the land multiplied by the PSDF for the land. O. Reg. 273/13, s. 5. (6) If an eligible increase in respect of an eligible change would be determined under subsection (5) by using the PSDF for the land, but there was an earlier eligible change affecting the assessment for the same taxation year for which a MDF or PLDF was used to determine the eligible increase relating to that earlier eligible change, the eligible increase in respect of the later eligible change is determined as if the PSDF for the land were equal to the MDF or PLDF used to determine the eligible increase relating to the earlier eligible change. O. Reg. 273/13, s. 5. (7) The following rules apply to determine the PSDF after two or more parcels of land are consolidated: 1.  If all the original parcels are in the same property class, the PSDF of the original parcel that had the highest current value as of January 1, 2012 is the PSDF for the consolidated parcel. 2.  If the original parcels are in different property classes or subclasses and the consolidated parcel is classified in the same property classes or subclasses, the PSDF for the original parcel in a particular class or subclass is the PSDF for the portion of the consolidated parcel in the same class or subclass. 3.  Paragraph 1 is applied to determine the PSDF of each class of property before paragraph 2 is applied if, i.  part or all of each original parcel is in the same property class before the consolidation, ii.  at least one of the original parcels is in more than one property class before the consolidation, and iii.  the consolidated parcel is in at least two of the same property classes. 4.  If no part of any original parcel is in the same property class or subclass as another original parcel and if not all of the classes and subclasses continue to apply to the consolidated parcel, the PSDF of the original parcel in a particular class or subclass applies to the portion of the consolidated parcel in the same class or subclass. 5.  If an excess land subclass is created on the consolidation, the PSDF for the parcel in the excess land subclass is the PSDF for the corresponding property class. 6.  If, on the consolidation, excess land is added to an existing excess land subclass, the PSDF for the existing land subclass applies to the additional excess land. 7.  In any case not otherwise described in this subsection, the PSDF of the consolidated parcel is the MDF for the municipality and property class that apply to the land after the consolidation or, if the land is in non-municipal territory, the PLDF for that property class. O. Reg. 273/13, s. 5. (8) If land is subject to a severance into two parcels and if any severed portion of the land is vacant land that does not meet the minimum municipal requirements for development and is not being consolidated with other land, subparagraph 5 i of subsection (5) does not apply and the PSDF for both parcels is the PSDF of the land before the severance. O. Reg. 273/13, s. 5. (9) For the purposes of section 33 or 34 of the Act, the amount of the additional assessment in respect of an eligible change is calculated using the formula, A – (B × C) – D in which, “A”  is the 2012 adjusted current value, “B”  is 75 per cent for the 2013 taxation year, 50 per cent for the 2014 taxation year and 25 per cent for the 2015 taxation year, “C”  is the eligible increase in respect of the eligible change as determined under this section, and “D”  is the assessment of the land shown on the assessment roll or, if the land is severed, the current value attributed to the applicable severed portion as apportioned under section 356 of the Municipal Act, 2001, section 322 of the City of Toronto Act, 2006 or section 11 of the Provincial Land Tax Act, 2006
for the taxation year in which the additional assessment is made. O. Reg. 273/13, s. 5. (10) Despite subsection (9), the amount of the supplemental assessment for land or a portion of land if the eligible change is a change in classification or a change from taxable to non-taxable, or vice-versa, is calculated using the formula, A – (B × C) − E in which, “A”  is the 2012 adjusted current value, “B”  is 75 per cent for the 2013 taxation year, 50 per cent for the 2014 taxation year and 25 per cent for the 2015 taxation year, “C”  is the eligible increase in respect of the eligible change as determined under this section, and “E”  is the assessment of the land shown on the assessment roll or, if the land is severed, the current value attributed to the applicable severed portion as apportioned under section 356 of the Municipal Act, 2001, section 322 of the City of Toronto Act, 2006 or section 11 of the Provincial Land Tax Act, 2006 for the taxation year in which the supplemental assessment is made. O. Reg. 273/13, s. 5. (11) If both subsections (9) and (10) apply in determining the amount of an additional or supplemental assessment, subsection (10) is applied before subsection (9). O. Reg. 273/13, s. 5. (12) The following rules apply for the purposes of clause (4) (b): 1.  If a change is made to the assessment for a taxation year under subsection 32 (1.1) or section 39.1 of the Act or as a result of an appeal under section 40 of the Act or an application under section 46 of the Act and if that same change would have been reflected in the assessment for the taxation year as adjusted for the purposes of paragraph 1 of subsection 47.1 (1), the adjusted assessment applicable to that change is the amount determined under the applicable paragraph of subsection (5) if the change is an eligible change. 2.  If an annual assessment is made under section 36 of the Act which results in a different assessment from the assessment for the previous taxation year, and if that same change would not have been reflected in the assessment as adjusted under paragraph 1 of subsection 47.1 (1), the change must be made before the application of paragraph 3. 3.  If an annual assessment is made under section 36 of the Act which results in a different assessment from the assessment for the previous taxation year, and if that same change would have been reflected in the assessment as adjusted under paragraph 1 of subsection 47.1 (1), the adjusted assessment applicable to the change is the amount determined under the applicable paragraph of subsection (5) if the change is an eligible change. O. Reg. 273/13, s. 5. (13) Paragraphs 1, 2 and 3 of subsection 48.2 (8) apply for the purposes of this section. O. Reg. 273/13, s. 5. (14) If, as a result of the application of any of subsections (4) to (11), the calculation of the eligible increase in respect of an eligible change results in a negative amount, the eligible increase in respect of the eligible change is determined as if it were an eligible change to which paragraph 12 of subsection (5) applies. O. Reg. 273/13, s. 5; O. Reg. 325/16, s. 4.