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Calculate Sales tax US

Sales Tax States, to calculate sales tax of US States, city and zip code.

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Reverse Harmonized sales tax calculator (hst) of Ontario 2018

Calculate the Reverse Ontario sales taxes HST

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Current HST rate for Ontario in 2018

The HST for Ontario is calculated from Ontario rate (8%) and Canada rate (5%) for a total of 13%.

No change on the HST rate as been made for Ontario in 2018.

Formula for reverse calculating HST in Ontario

Amount with sales tax / (1+ (HST rate/100)) = Amount without sales tax
Amount without sales tax x (HST rate/100) = Amount of HST in Ontario

Example

100$ / (1+(13/100)) = 88.50$ (88,495575$)

88,495575$ x (13/100) = 11.50$

Note that the amount without sales tax of Ontario in this situation should not be rounded before the HST is calculated.

Margin of error for sales tax

An error margin of $ 0.01 may appear in reverse calculator of sales tax in Ontario, Canada.

Due to rounding of the amount without sales tax, it is possible that the method of reverse calculation charges does not give ($ 0.01 to close) the total of sales tax used in every businesses in Ontario, Canada.

Harmonized tax calculation for all the provinces of Canada

Regarding the sale of books, only the GST must be taken into consideration in this type of calculation. However, in some provinces, the Harmonized Sales Tax (HST) must be used.

HST exemptions or rebates for Ontario

There is some items in Ontario that don't need sales taxes such as basic groceries, some drugs, child car and more. Visit the ontario HST exemptions website

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