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Sales tax calculator GST and QST 2016

Instant sales tax calculation for the GST and QST of Québec in 2016.

The formula for calculating GST and QST used in 2016

The calculation of the GST and the QST is normally done in two steps, you must calculate the GST (at 5%) on the sale price, then add the QST (at the rate of 9.975%) at the same price of the sale. The calculation of the GST and QST can also be done in one step, you must use the rate of 14.975% to calculate both taxes. The resulting amount includes GST and QST.

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