There is a way to estimate your GST/HST credit. The Canadian Revenue Agency has a printable and online worksheet that you can use to calculate your credit. You can also access the online GST/HST credit calculator, which will calculate your GST/HST credit, and any additional family or child benefits you may be entitled to. To complete these forms, you will need to know your net family income, which you can retrieve from your 2021 income tax notice of assessment.