Sales Tax for K6H — Cornwall

What Postal Code K6H Covers

K6H covers western and central Cornwall on the St. Lawrence. The city was substantially reshaped by the Seaway project of the 1950s, which flooded several nearby communities — the Lost Villages — and rebuilt the waterfront. Lamoureux Park now occupies much of that reclaimed shoreline.

Communities & neighbourhoods in K6H

Local landmarks

• St. Lawrence River waterfront
• Cornwall Community Museum
• Lamoureux Park

Where K6H Sits — and What That Changes at the Till

K6H covers ground within about 1 km of the centre of Cornwall — one of 3 forward sortation areas the city is split across, each carrying the same 13% but covering very different retail. Its closest postal neighbours are K6J (Cornwall) about 2 km off and K6K (Cornwall) about 3 km off.

The nearest postal area we hold in another province is H0M (Akwesasne, Quebec), about 7 km from K6H. A $500 order delivered into K6H carries $65.00 in HST; the same order delivered into H0M carries $74.88 in GST + QST — $9.88 apart on one invoice. Because Canadian sales tax follows the customer, a seller in Cornwall shipping to both charges 13% on the first and 14.975% on the second, from the same warehouse on the same day.

The Seaway International Bridge at Cornwall lies about 2 km from K6H, which puts US retail inside an ordinary afternoon. What comes back is a customs question rather than a provincial one, and the thresholds are unforgiving: no personal exemption at all on a same-day trip, CAD 200 once you have been away 24 hours — lose it by a dollar and duty and tax apply to everything you are carrying, not just the excess — and CAD 800 after 48 hours, where only the amount over the line is assessed. Because Ontario is an HST province, the CBSA collects the full 13% at the booth rather than the 5% federal portion alone.

K6H is dense urban ground — 3 named neighbourhoods inside one postal area, about 20,000 — and density changes the taxable mix rather than the rate. Prepared food, personal services and in-person retail dominate what is rung through Cornwall codes like this one, all of it at 13%, while the zero-rated grocery basics that anchor a suburban shop are a smaller share of the total than the province-wide averages suggest. Visitor spending around Cornwall Community Museum lands in accommodation, prepared food and admissions rather than durable goods. Admissions are their own category: one supplied by a charity or a municipality can be exempt outright, while a commercial attraction on the same street charges 13%.

The 13% above is set for the whole of Ontario and does not move between postal codes — K6H pays exactly what every other Ontario code pays. Overnight accommodation is where Cornwall parts company with them. The city levies a 5% Municipal Accommodation Tax on top of HST, so a $200 room night inside K6H carries $10.00 that the identical room would not carry in an Ontario municipality that never adopted one. The rate rose from 4% on 1 January 2025. By-law 2018-039 set it at 4% from 1 June 2018, and council voted on 29 October 2024 to add a point; the revenue is shared between the Tourism Development Corporation of Cornwall and Cornwall Tourism.

Everything above is particular to K6H; the rules that are not — registration thresholds, filing frequency, input tax credit recovery, point-of-sale rebates — are set for the whole of Ontario, and they live on the Ontario sales tax guide rather than being restated on K6H's page, where the calculator above is already locked to 13%.

Working the 13% on a Purchase in K6H

FSA K6H Tax Breakdown and Calculation Example

For FSA K6H in the Cornwall area, the sales tax rate is 13%. Here is how tax is calculated on typical purchase amounts:

Selling into K6H: What You Need to Register For

Ontario runs a HST system administered by Canada Revenue Agency (CRA), with a registration threshold of $30,000 (HST). Filing frequency, input tax credit recovery, point-of-sale rebates and the full registration walkthrough are set out on the Ontario sales tax guide — they are province-wide rules, identical for every postal code here, so this page links them rather than repeating them.

1. Charge the rate the address decides. A delivery into K6H is an Ontario sale, so charge 13% HST — your own address does not enter into it.
2. Show it the way Canada Revenue Agency (CRA) expects. One HST line and the total tax amount on each invoice.

Everything else about selling here — thresholds, filing frequency, ITC recovery, point-of-sale rebates, and the full province-by-province sourcing rules — is identical for every postal code in Ontario and is set out once on the Ontario sales tax guide and in the Ontario GST/HST calculator.

Postal Codes Near K6H

All 13%, like K6H — what differs is the ground each one covers, and with it the municipal levies on lodging and prepared food worth checking before you invoice.

All Ontario FSAs →FSA Lookup Tool →