Exporter Zero-Rated HST Refund Calculator
Selling to customers outside Canada means charging nothing and recovering everything. Work out the refund you should be in for each period, how much cash filing monthly releases, and what the CRA will want to see before it pays.
annual refund position
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The Net Tax Calculation
| Line | Basis | Amount |
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Filing Frequency and Cash Timing
| Frequency | Periods a Year | Refund Per Period | Average Wait for the Cash |
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What a Review Will Ask For
| Evidence | Supports | Your Position |
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Points That Decide This
What to Do Next
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Disclaimer: Goods shipped outside Canada are generally zero-rated under Part V of Schedule VI to the Excise Tax Act, and certain services supplied to non-residents are zero-rated under the same Part, subject to a list of exclusions that includes services in respect of real property situated in Canada, services rendered to an individual while that individual is in Canada, and certain transportation and advisory services. Zero-rated means the supply is taxable at a rate of 0%, so no tax is collected while full input tax credits remain available on the related inputs; this is what produces a persistent refund position for an exporter. A registrant may elect to file more frequently than its assigned reporting period, which accelerates the receipt of refunds but increases the number of returns. Input tax credits are generally subject to a four-year limitation, reduced to two years for certain specified persons and large businesses, so unclaimed credits do expire. Refund claims, particularly first-time or unusually large ones, may be selected for pre-assessment review, and the refund is held until the review concludes; the delay estimates in this calculator are illustrative and the CRA does not publish guaranteed timelines. HST is applied at the Ontario rate of 13%. Whether a specific service qualifies for zero-rating turns on the precise facts and on the wording of the schedule, and should be confirmed rather than assumed. This page is general information, not tax advice.
Zero-Rated Is Not the Same as Not Taxable
An exporter charges nothing on its foreign sales, which looks from the outside like being outside the system. It is the opposite. A zero-rated supply is a taxable supply at a rate of zero, and that rate is what preserves the right to recover every dollar of HST paid on the inputs behind it.
The arithmetic follows automatically. Almost no tax collected, full credits claimed, and the return produces a refund rather than a payment. An exporter in a persistent refund position is not doing anything unusual; it is the system working as designed.
Where this goes wrong is a business that never registered because it thought it had nothing to collect. Zero-rated sales count toward the small supplier threshold and they support recovery, so staying unregistered means absorbing HST on every Canadian cost with no way to get it back.
Goods Are Straightforward, Services Are Not
Goods shipped outside Canada are zero-rated on relatively clear terms. The difficulty is evidential rather than conceptual: you have to be able to show the goods actually left.
Services are where the analysis gets real. A service supplied to a non-resident is zero-rated only if it falls outside a list of exclusions, and that list catches more than people expect.
| Supply | Usually | Why |
|---|---|---|
| Software developed for a US company | Zero-rated | Service to a non-resident, no exclusion applies |
| Marketing services for an overseas brand | Zero-rated | Same, where the recipient is genuinely non-resident |
| Consulting on a building in Toronto | Taxable | Service in respect of Canadian real property |
| Training delivered to visitors while in Canada | Taxable | Rendered to an individual while in Canada |
| Work for a foreign company’s Canadian branch | Taxable | The recipient has a Canadian presence |
| Goods sold to a US buyer, picked up in Ontario | Depends | Turns on who exports and what you can prove |
A foreign billing address is not the test. What matters is whether the recipient is a non-resident and whether any exclusion catches the service. Invoicing a US parent for work that really benefits its Canadian subsidiary is the single most common way a zero-rating claim falls apart on review.
Filing Frequency Is the Cash Lever
The refund is the same whichever way you file. What changes is when you get it. An annual filer earns a refund in January and sees it after the year closes and the return is filed; a monthly filer sees the same money within weeks.
A registrant can elect to file more frequently than its assigned period. For a business in a permanent refund position this is usually the highest-value administrative change available, and the cost is more returns rather than more tax.
| Filing Frequency | Returns a Year | Typical Wait for a Refund | Suits |
|---|---|---|---|
| Annual | 1 | Longest | Businesses that owe rather than reclaim |
| Quarterly | 4 | Moderate | Mixed domestic and export sales |
| Monthly | 12 | Shortest | Persistent refund positions |
Expect the First Large Refund to Be Reviewed
A return claiming a substantial refund, particularly a first one, is a normal candidate for pre-assessment review. That is not an audit and not an accusation. It is the CRA asking to see the support before releasing money.
The outcome depends almost entirely on whether the documentation already exists. A business that can produce shipping evidence, contracts and customer details answers in a week. A business that has to reconstruct them from memory waits months, and sometimes loses the claim on supplies that were genuinely zero-rated but cannot be proved.
What to Keep, Contemporaneously
- Evidence the goods left Canada, including bills of lading, carrier documentation, customs paperwork and proof of delivery abroad
- The customer’s non-resident status, including their address, place of business and confirmation they are not registered in Canada
- Contracts and engagement letters showing who the recipient of the service is and where it is to be used
- Invoices identifying the supply as zero-rated rather than simply omitting tax
- Proof of payment from the foreign customer, particularly where funds arrive from a different entity
- Purchase invoices supporting every credit claimed, with the supplier’s registration number visible
The documentation has to be gathered as the sales happen, not when the letter arrives. By the time a review opens, a shipment from fourteen months ago is somebody else’s filing system. This is the difference between a refund released in days and one held for a quarter.
Credits Do Expire
Input tax credits are generally available for four years, reduced to two for certain specified persons and large businesses. An exporter that has been unregistered, or registered but not claiming, is losing the oldest periods permanently as time passes.
That makes the position worth quantifying now rather than at the next year end. Where several years are involved, the oldest ones are the ones with a deadline attached.
Common Mistakes
- Treating zero-rated sales as exempt, and therefore not claiming the credits behind them
- Staying unregistered because nothing is collected on foreign sales
- Zero-rating by billing address rather than by the residency and exclusion tests
- Filing annually while sitting in a permanent refund position
- Claiming credits on costs with no HST, such as payroll and most imported services
- Keeping invoices but no proof of export, which is the evidence a review actually asks for
What This Calculator Does Not Cover
- Whether a particular service qualifies, which turns on the recipient and the exclusions in the schedule
- Imported goods and services, including self-assessment obligations and GST paid at the border
- Provinces outside Ontario and the different rates that apply to domestic sales elsewhere
- The simplified and quick methods, which are generally unsuitable for an exporter
- Drop shipments and the specific rules that apply to them
- Digital economy rules for non-resident platforms and suppliers
If you are in a refund position and filing annually, the filing election is the first thing to change. Our GST/HST return filing service covers the frequency election, the returns, the documentation file and responding to a pre-assessment review.
Frequently Asked Questions
Common questions on HST for Canadian exporters.
Related Calculators and Guides
More tools for exporters and cross-border sellers.
Get the Refund, and Get It Sooner
Send us a year of sales split by customer location and your purchase data. We will confirm which supplies are genuinely zero-rated, quantify the refund, file the frequency election, and build the documentation file before a review asks for it.