Sales Tax for K4K — Rockland
Postal code K4K covers Rockland and Clarence-Rockland in Rockland, Ontario. The sales tax rate here is 13%. This is a single HST rate.
Rate locked to K4K (Ontario, 13%). Need another province? Open the full calculator →
About Ontario Sales Tax
Ontario has a 13% combined sales tax rate, consisting of the 5% federal GST and 8% provincial HST.
Ontario uses the Harmonized Sales Tax (HST) system. The HST combines the 5% federal GST and the provincial portion into a single streamlined rate administered entirely by the Canada Revenue Agency. Businesses file one return, claim one set of input tax credits (ITCs), and remit to one authority — significantly simplifying compliance compared to dual-tax provinces.
What Postal Code K4K Covers
K4K serves Rockland in the City of Clarence-Rockland, a growing bilingual commuter town on the Ottawa River east of Ottawa. It is a suburban residential community.
Communities & neighbourhoods in K4K
Where K4K Sits — and What That Changes at the Till
K4K sits about 35 km northeast of Ottawa, the nearest centre of any size, and is the only postal area our data records for Rockland. Its closest postal neighbours are K4C (Cumberland) about 10 km off and K4A (Ottawa (Orléans)) about 15 km off.
The nearest postal area we hold in another province is J8L (Gatineau (Buckingham), Quebec), about 10 km from K4K. A $500 order delivered into K4K carries $65.00 in HST; the same order delivered into J8L carries $74.88 in GST + QST — $9.88 apart on one invoice. Because Canadian sales tax follows the customer, a seller in Rockland shipping to both charges 13% on the first and 14.975% on the second, from the same warehouse on the same day.
K4K is suburban ground serving about 11,000 across 2 communities — the settlement pattern where delivered goods matter most. A parcel addressed into K4K carries Ontario's 13% even when the seller is registered in Alberta and charges 5% to every customer at home.
Everything above is particular to K4K; 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 K4K's page, where the calculator above is already locked to 13%.
Working the 13% on a Purchase in K4K
FSA K4K Tax Breakdown and Calculation Example
For FSA K4K in the Rockland area, the sales tax rate is 13%. Here is how tax is calculated on typical purchase amounts:
Use our Ontario GST/HST Calculator to compute tax on any amount instantly.
Selling into K4K: 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.
- Charge the rate the address decides. A delivery into K4K is an Ontario sale, so charge 13% HST — your own address does not enter into it.
- 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 K4K
All 13%, like K4K — what differs is the ground each one covers, and with it the municipal levies on lodging and prepared food worth checking before you invoice.
Calculate Tax for Your Ontario Purchase
You know FSA K4K has a 13% tax rate. Now enter any dollar amount to see the exact GST/HST breakdown and total. Perfect for retail pricing, invoicing, and budgeting in Ontario.
Open Ontario Tax CalculatorFor informational purposes only. Tax rates change frequently — verify with your state's Department of Revenue before filing. This tool is not a substitute for professional tax advice.
· Rate source metadata is tracked in the TaxesLedger tax data registry.
Frequently asked questions
Quick answers to the most common questions users ask.
What areas does postal code K4K cover?
The Forward Sortation Area K4K covers Rockland and Clarence-Rockland in the Eastern Ontario region of Ontario, serving about 11,000 in a predominantly suburban setting.
What is the sales tax rate for FSA K4K in Ontario?
The combined sales tax rate for postal code FSA K4K in the Rockland area of Ontario is 13%. This is a Harmonized Sales Tax (HST) that combines the 5% federal GST with an 8% provincial component into a single rate administered by the Canada Revenue Agency.
How do I calculate tax for a purchase in Ontario (FSA K4K)?
To calculate the total price including sales tax for any purchase in Ontario, multiply the purchase price by 1.13. For example, a $100.00 purchase costs $113.00 total, with $13.00 in sales tax.
For the reverse calculation, divide the total price by 1.13 to find the pre-tax amount. Run the example above backwards and $113.00 paid in Ontario resolves to $100.00 before tax and $13.00 of HST.
Does Ontario use HST or separate GST and PST?
Ontario uses a Harmonized Sales Tax (HST) system. The HST combines the 5% federal GST with the 8% provincial component into a single rate of 13%. Businesses file one return with the CRA.
What kind of area is K4K — urban, suburban or rural?
K4K is a predominantly suburban code serving about 11,000, within the Eastern Ontario region. That mix means both in-store and delivered purchases are common, and delivered orders take the rate for this postal code rather than the seller's.
Do local taxes in K4K change what I pay?
Not the sales tax itself — Ontario levies 13% province-wide and there is no municipal sales tax in Canada. What can differ by municipality are the separate levies that sit outside sales tax: accommodation and lodging taxes on short-term stays, and in some provinces local levies on prepared food or alcohol.
So a hotel folio or restaurant bill from Rockland can total more than 13% while a retail receipt from the same street does not. Check the municipality's own schedule for those, and see the Ontario sales tax guide for the province-wide rules.
How does FSA K4K map to a sales tax rate?
The Forward Sortation Area (FSA) is the first three characters of a Canadian postal code. K4K falls within the range assigned to Ontario, specifically the Rockland area. Canada sets sales tax provincially rather than municipally, so the FSA's job here is to place the buyer: once you know a delivery address sits in K4K, you know it is an Ontario sale and you charge 13%. That matters most for shipped orders, where the buyer's postal code — not your own — decides the rate.
Where can I calculate GST/HST for Ontario?
Use our Canadian GST/HST Calculator to add or remove tax from any amount. You can also visit the dedicated Ontario tax calculator for province-specific rates, examples, and compliance information.
All rates, thresholds, and regulatory guidance cited on this page are sourced from official government publications and non-partisan research institutions.
Canadian Tax Authorities
Canada Revenue Agency (CRA)
The authoritative source for federal GST/HST rates, provincial HST variations, and input tax credit rules.
canada.caRevenu Québec
Official administration for Quebec Sales Tax (QST) and provincial GST/HST compliance requirements.
revenuquebec.caTaxesLedger is an independent educational tool. We are not affiliated with any government agency. Rate records include source metadata and verification status; always confirm with your jurisdiction's official Department of Revenue before filing. Last registry update: September 11, 2026.
Related calculators
More free tax tools to help with calculations, compliance, and business tax planning.
Momsräknare (Svenska)
Räkna ut svensk moms: lägg på eller räkna bort 25 %, 12 % eller 6 %.
Open toolUSt-Rechner Österreich (Deutsch)
Umsatzsteuer für Österreich berechnen: Brutto ↔ Netto mit 20 %, 13 % oder 10 %.
Open toolCalcul TVA Belgique (Français)
Calculez la TVA belge : ajoutez ou retirez 21 %, 12 % ou 6 % d'un montant HT ou TTC.
Open toolVAT Reverse Calculator
Calculate VAT backwards or forwards for the UK, EU, Norway, and Switzerland. Extract net prices, VAT rates, and gross totals instantly.
Open toolCanadian GST/HST Calculator
Calculate Canadian GST, HST, and PST for all 13 provinces and territories. Handles forward tax addition and reverse tax extraction.
Open toolSales Tax by Province
Province-by-province Canadian sales tax guides for 2026 — GST/HST/PST/QST rates, registration thresholds, filing, ITC/ITR recovery, exemptions, and a calculator for all 13 provinces and territories.
Open toolReverse GST/HST Calculator
Extract the pre-tax price from any Canadian sales tax total. Supports GST, HST, and PST/QST reverse calculations for all provinces.
Open toolInput Tax Credit (ITC) Calculator
See exactly how much GST/HST — and Quebec QST — you can claim back on a business purchase, and which provincial taxes (BC/SK PST, MB RST) are not recoverable.
Open tool