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Taxpayers with low or modest incomes can claim the GST/HST credit to offset the tax they pay on goods and services. It is given four times each year at no cost to them.
GST/HST credit - Overview
It is possible to ask for a retroactive payment up to three years after the event. You can submit a request under the taxpayer relief provisions of the Income Tax Act if you did not file your 2018 or 2019 tax returns within the three-year period.
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