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Sales tax, handled

Online GST/HST Filing & Registration in Canada

Reviewed by EverStone CPA · July 2026

GST/HST trips up more small businesses than any other filing — wrong rate, missed registration, forgotten input tax credits. We register you, file on time, and make sure you claim every credit you’re owed. EverStone CPA handles GST/HST for clients in every province, from its home base in Abbotsford, BC.

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Quick answer: GST/HST returns are filed online through CRA My Business Account or a representative’s e-file access, and registration becomes mandatory once taxable sales exceed $30,000. Filing frequency is monthly, quarterly or annual depending on revenue. EverStone registers, files and reconciles GST/HST for Canadian corporations entirely online.

The three recurring GST/HST failures are registering only at the year end rather than when taxable revenue passes $30,000 over four consecutive quarters, charging a rate based on where the business sits rather than where the customer is, and never claiming the input tax credits that often put an expense-heavy business in a refund position
Late registration, the wrong rate, and credits never claimed.
What’s included

GST/HST, start to finish

Registration, filing and recovery — for every province you sell into:

  • GST/HST registration with the CRA at the right time
  • The correct rate by province — 5% GST to 15% HST, by place of supply
  • Input tax credits claimed so you recover the tax you paid
  • On-schedule filing — monthly, quarterly or annual
  • Provincial sales tax (BC PST, Manitoba RST, Saskatchewan PST) where it applies
  • Reconciliation to your bookkeeping, so filings match your records
The rules

The three things businesses get wrong about GST/HST

1. Registering too late. You must register once you cross $30,000 in taxable revenue over four consecutive quarters — not at year-end. Miss it and you can owe tax you never collected from your customers.

2. Charging the wrong rate. The rate follows place of supply — where your customer is. A sale to Ontario carries 13% HST, to BC it’s 5% GST plus 7% PST, to Alberta just 5%. Sell across the country and you’re juggling several regimes at once.

3. Leaving input tax credits on the table. The GST/HST you pay on business expenses is recoverable — but only if it’s tracked and claimed. Many businesses, especially those with lots of expenses or fuel, are actually owed a refund and never claim it. We make sure you do.

$30,000 threshold

Register once taxable sales pass $30k over four rolling quarters. Voluntary early registration can pay off if you have big start-up costs.

Place of supply

Charge based on where the customer is: 5% GST, 13% HST (ON), 15% HST (Atlantic), or GST + a separate PST/RST.

Input tax credits

Recover the GST/HST you paid on expenses. Fuel-heavy and expense-heavy businesses are often in a refund position.

Who it’s for

Is this right for you?

Online GST/HST filing fits any Canadian business dealing with sales tax:

  • Businesses approaching or past the $30,000 threshold
  • Sellers shipping to customers in multiple provinces
  • Contractors and service businesses charging GST/HST
  • Expense- or fuel-heavy businesses owed input tax credits
  • Anyone unsure whether they’re charging the right rate
How it works

Working with EverStone, start to finish

  1. Free consultWe check whether you need to register and quote a fixed fee.
  2. Register with the CRAWe handle registration and set your filing frequency.
  3. Track & reconcileWe track GST/HST as part of your books and claim every input tax credit.
  4. File on timeWe file on your schedule — every province you sell into.

Related services & tools

Keep exploring, or run your own numbers first.

work out the GST on an amountSee fixed pricingVirtual bookkeepingVirtual corporate tax (T2)Virtual personal tax (T1)Virtual CPA hub
Common questions

GST/HST filing FAQ

When do I have to register for GST/HST?+
Once your taxable sales exceed $30,000 over four consecutive calendar quarters, you must register. Below that you’re a “small supplier” and registration is optional — though voluntary registration can be worth it if you have significant expenses to recover.
Which sales tax rate do I charge?+
It depends on where your customer is (place of supply): 5% GST in Alberta and the territories, 13% HST in Ontario, 15% HST in the Atlantic provinces, and 5% GST plus a separate provincial tax in BC, Saskatchewan and Manitoba. We configure and file it correctly for every province you sell into.
What are input tax credits?+
They’re the GST/HST you paid on business expenses, which you can claim back against the tax you collected. Tracked properly, they often mean a smaller remittance — or a refund. Many businesses miss them.
How often do I have to file?+
Monthly, quarterly or annually, depending on your revenue and what you elect. We set you up on the right frequency and file on time so you never miss a deadline.
Do you handle provincial PST too?+
Yes. In BC, Saskatchewan and Manitoba the provincial sales tax is separate from GST and filed to the province. We handle both so nothing slips through.
What happens if I file a GST/HST return late?+
CRA charges a penalty based on the amount owing and how late the return is, and interest runs on the balance from the due date. A late return can also hold up a refund and, for annual filers, disrupt your instalment base for the following year. Filing on time with a payment arrangement is nearly always better than filing late.
Can I claim input tax credits on purchases made before I registered?+
In limited circumstances, yes. There are rules allowing credits on inventory and certain capital property you still hold at the time you register, but ordinary operating expenses incurred before registration are generally not recoverable. That is one reason many new corporations register voluntarily at the start rather than waiting to cross the threshold.
Fixed feesClear, fixed pricing — you approve the fee before any work begins. No surprise bills.
One dayWe reply to every enquiry within one business day — usually the same day.
CPA-ledEvery file is handled personally by a CPA — never passed to junior staff.
No obligationYour first consultation is free, with zero pressure and no obligation.
What clients say

Trusted by Canadian business owners

Verified 5-star Google reviews from EverStone CPA clients.

★★★★★

“Sunny and his team have been completing my bookkeeping, taxes and financials for the last 2 years and they have been amazing. Thank you!”

R. H.
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★★★★★

“I have worked with Sunny for the past 2 years. He is very knowledgeable and has saved me tons in taxes by restructuring my group of companies — the best accountant I've worked with in the last 10 years, after switching from three different firms.”

Matt Hildebrandt
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★★★★★

“Personal. Professional. Responsive. Plus he saved me a bundle!”

Corrin Skalbeck
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From the blog

Guides for your situation

GuideGST/HST Quick Method: can it save you money? →
From the blog

Guides for your situation

GuideInput tax credits (ITCs) explained →

Official resources: CRA RC4022 — General Information for GST/HST Registrants

Information on this page was last reviewed in July 2026. See our editorial policy.

Serving business owners in virtual accountant in Vancouver  ·  online accountant in Toronto  ·  accountant in Ottawa  ·  Calgary small business accountant  ·  virtual accountant in Edmonton  ·  online accountant in Winnipeg — and right across Canada, entirely online.

The GST/HST decisions that change what you actually remit: zero-rated versus exempt supplies, instalments for annual filers, when registration becomes mandatory.

Ready to stop worrying about sales tax?

Book a free consultation — GST/HST registration, filing and credit recovery, done online at a fixed fee. Every province.

Book My Free ConsultCall (604) 832-1743

Filing online does not change the calendar — see when your GST/HST return is due.

For the background reading behind these filings, the Sales tax for Canadian business collects the registration, quick method and input tax credit guides in one annotated list.