A Simple Tool to Calculate HST in Canada – Why I Built HSTCalculator.onl

Wed, 09 Jul 2025 04:40:55 +0000

As a Canadian freelancer, I found myself constantly searching for a fast, reliable way to calculate Harmonized Sales Tax (HST) — not just for Ontario, but also for provinces like Nova Scotia and PEI. Every time I had to invoice a client or check how much tax was included in a total amount, I ended up doing manual math or clicking through cluttered government sites.

That frustration led to a simple idea: build a tool that does exactly what I need, without distractions.

So I created [HSTCalculator.onl](https://hstcalculator.onl), a free online utility that lets anyone instantly add or remove HST based on province-specific rates. Whether you’re a business owner, a freelancer, or just shopping online, the tool helps you calculate:

* Net amount (before tax)
* HST amount (based on selected province)
* Total amount (after adding tax)

**No signup. No ads. Just accurate results in one click.**

It’s built with simplicity in mind — works on desktop and mobile, loads instantly, and respects your privacy (no data is collected). As of now, the tool supports all HST provinces:

* Ontario – 13%
* Nova Scotia – 15%
* New Brunswick – 15%
* Newfoundland and Labrador – 15%
* Prince Edward Island – 15%

This project was created under my developer identity, **Tara Rebecca**, as part of my mission to build helpful micro-tools that solve everyday problems.

If you’ve ever felt confused about how much HST you’re paying — or want to double-check before sending an invoice — give it a try:

👉 [https://hstcalculator.onl](https://hstcalculator.onl)

**Feel free to share it with fellow Canadians who could use a reliable HST calculator.**

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**Tags:** #HSTCalculator #CanadianTax #SmallBusinessTools #FreelancerFinance