GST, HST, QST and PST for every province and territory, pre-loaded. InvoiceCast picks the tax from where you are registered and where your client is, shows each tax on its own line, and locks it to the invoice so your records never shift under you.
Each invoice's tax is worked out from your registrations and your client's location, with the reasoning shown. Switch any invoice to a formula of your choice; either way the breakdown travels with that invoice forever.
Your business's province and each client's. For services, the client's province's GST/HST applies, a provincial tax only where you are registered for it, and a client abroad is a zero-rated export.
The engine applies each component to the subtotal and shows GST and the provincial portion as separate lines, the way a compliant invoice should read.
The full breakdown is written onto the invoice. Change or delete the formula later and every invoice you have already issued keeps the numbers it was created with.
All 13 Canadian provinces and territories are pre-loaded — HST provinces, GST-plus-PST provinces, Quebec's GST and QST, and the GST-only territories. All 50 US states and DC are included too, for cross-border billing.
Formulas carry the year they apply to, so an invoice is calculated against the rates labelled for its own tax year rather than whatever is current today. Historical invoices stay defensible when you are asked to explain them.
GST and the provincial portion appear as distinct lines with their own rates and amounts. That is what your clients need to claim input tax credits, and what you need at filing time.
The engine supports tax charged on top of another tax, applied in order. Rare in Canada today, but it is there when a formula genuinely calls for it.
On Pro and Business: build your own formulas, add registrations in other provinces (QST outside Quebec, another province's PST) so automatic tax charges them, and mark clients exempt or zero-rated or give a client its own formula.
The applied breakdown is stored on the invoice itself, not looked up at display time. Editing a formula changes future invoices only — it never quietly rewrites financial records you have already sent.
Tax software that overstates what it covers creates problems at filing time. Here is exactly where the built-in formulas stop.
The pre-loaded rates reflect published provincial and federal rates. Whether a given sale is taxable, zero-rated, or exempt still depends on what you sell and to whom — that judgment stays with you and your accountant.
The built-in US formulas cover state rates. County, city, and district taxes vary by jurisdiction and are not included — if you bill into somewhere with significant local tax, build a custom formula for it.
Automatic tax follows CRA's general place-of-supply rule for services and intangible property. Goods shipped to another province, real property and other special cases follow different rules — switch those invoices to manual and choose the tax yourself.
When a rate changes, apply the new formula going forward. Invoices already issued keep their original breakdown by design — that is a feature of a financial record, not a gap.
The built-in formulas ship with InvoiceCast and are labelled by tax year, so you are not maintaining a spreadsheet of rates. If you need a rate we do not ship — a local US rate, or a specialised formula for your industry — you can create a custom formula on the Pro and Business plans.
No, and that is deliberate. The tax breakdown is written onto each invoice when it is created and stays there. An invoice you sent last year still shows the numbers your client received, which is what makes it usable as a financial record.
Yes. Automatic tax picks each client's province for you — HST for an Ontario client, GST plus QST for a Quebec client when you are registered for QST — and you can override any invoice.
No. The built-in US formulas are state-level only, because local rates vary by county, city, and special district and change frequently. If you bill into a jurisdiction with meaningful local tax, create a custom formula with the combined rate you need.
The calculator is a quick one-off lookup — enter an amount, see the breakdown, no account needed. This is the same engine applied inside your invoicing: the formula is attached to real invoices, shown as separate lines on the document your client receives, and stored with that invoice permanently.
No. InvoiceCast works out tax from the general rule and the facts you enter, and shows the arithmetic. Whether a particular sale is taxable, which rule applies to your situation, and what you owe at filing time are questions for you and your accountant.
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