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Assessment and Taxation


The Municipal Property Assessment Corporation's (MPAC) role is to accurately value and classify properties in Ontario in accordance with the Assessment Act and regulations established by the Ontario Government. 

Every four years, MPAC perform Assessment Update as part of Ontario's assessment cycle. The last province-wide Assessment Update took place in 2016.  The new assessment on the return of the Assessment Roll reflects the legislated January 1, 2016 valuation date for re-assessment review cycle 2017 to 2020.  Updated Property Assessment Notices were sent by MPAC to residential property owners in June of 2016 and notices for business properties and farms were sent in the fall of 2016.  

The assessment values on the MPAC notice will be used to calculate your property taxes for the years 2017 to 2020.  An assessment increase does not necessarily result in an increase in your property taxes.  For questions regarding your property assessment value or classification, please contact MPAC.

Have a question or concern about your property assessment value or classification.  Please visit their website at MPAC Assessment Update or contact the Municipal Property Assessment Corporation (MPAC).

CALL                                                                  WRITE

1-866-296-MPAC (6722)                                    P.O. Box 9808
1-877-889-MPAC (6722) TTY                            Toronto, ON M1S 5T9

WEBSITE/EMAIL                                                FAX                                                      1-866-297-6703

2020 Final Billing Dates

The Tax By-law (By-law 2020-027 Tax Levy By-law) was passed by Council establishing the tax due dates.

The 2020 Final Tax Notices will be mailed in July 2020. Click here to see the flyer that was mailed with the tax notices.

Property ClassFinal Tax Notices Mail out 1st Installment
due date
2nd Installment
due date
Residential / FarmJuly 2020July 29, 2020September 25, 2020​
Commercial / IndustrialJuly 2020July 29, 2020September 25, 2020

Failure to receive a property tax notice does not eliminate your responsibility from payment and/or penalty due to late payment.

Tax Calculation 

The interim tax levy is calculated based on 50% of last year's annualized taxes. The final tax levy is determined by multiplying the Current Assessed Value (known as "Assessment") of your property by the Annual Tax Rate for the property type (known as "Property Class").  

Tax Rates

The 2020 Total Tax Rates for each property class in the Township of King are shown below.  These tax rates include Township, Region and Education Taxes. 

2020 Tax Rate Schedule

​Education tax rates are set by the Government of Ontario and the Region of York tax rates are established by Regional Council, both of these will also be applied to the assessed value of your property provided by MPAC.  For questions about your property taxes, please contact the Township of Service King Department at 905-833-5321 or  

Supplementary Taxes

Supplementary Taxes - Buying a Newly Constructed Building/Homes, new constructions, renovation or alternations.

For newly constructed homes or buildings, the property taxes may not have been assessed in full at the time when the Final Tax Notice was generated.  The Tax Notice(s) only captured the value of the land if the building portion has yet to be determined.

The Municipal Property Assessment Corporation (MPAC) determines the assessed values for all properties in Ontario. Due to the volume of buildings to be assessed in Ontario, your property may not be fully assessed in the current taxation year.  Any taxes owing on the building will be retro-active to the date of occupancy and you will receive Supplementary Notice(s) to reflect the taxes owing for current and/or prior years.  Once this process is completed, the valuation for land and building will be combined and levied accordingly in subsequent taxation years. 

Property Taxes

Payment can be made by pre-authorized bank withdrawal (Township's Pre-Authorized Debit Plan [PAD]), at most financial institutions, including via personal online banking or by cheque.  If paying in person at a financial institution, please present the entire bill.  Any unpaid taxes will be subject to a penalty charge of 1.25% on the first day of each and every month during which default continues.  

Please Note: Credit cards will not be accepted for payment of Property Taxes.

Tax Relief

Tax Relief is available for Seniors, Low-Income Seniors and Low-Income Disabled Persons. 

The Regional Municipality of York administers a Tax Deferral Program for seniors over 65 years of age, low-income seniors, or low-income disable persons.  You must own your principal residence in York Region and must be the owner of the property on January 1st of the taxation year for which the deferral has been requested.  All deferred taxes must be repaid in full prior to transfer of title on sale of the subject property.

To determine your eligibility for participation in a property tax deferral program, please contact the Finance Department at the Township of King 905-833-5321 (ext. 4572).  Applications must be received no later than September 30th of the taxation year for which you are requesting a deferral of property taxes.

Application for Adjustment of Property Taxes

Tax Deferral Application​