Fence contractor business operations: GST, HST, PST and QST

What to take away

GST/HST registration thresholds for fence contractors

Registration under the Excise Tax Act hinges on one number: your taxable supplies over four consecutive calendar quarters. Cross it and you must register, charge and remit. The figure is $30,000 in taxable supplies over four consecutive calendar quarters.

A fence contractor selling only GST-taxable work is a small supplier until taxable revenue passes the threshold in that rolling window. The Canada Revenue Agency's guide RC4022, General Information for GST/HST Registrants, sets out the threshold and the registration rules, and the CRA website carries the current figure. Read that rather than trusting a number repeated in a forum.

A spring rush can push a sole proprietor over the threshold in a single quarter, but small supplier status is decided by the four-quarter look-back, not by one busy season. Once the rolling total passes $30,000, registration takes effect and charging starts on the date the CRA sets, not whenever the bookkeeper notices.

Voluntary registration is allowed below the threshold. It makes sense when you buy a lot of taxed materials and want input tax credits, or when your customers are businesses that expect a tax number on the invoice.

Once registered, you charge GST/HST on taxable fence work regardless of whether you feel like a big business. Registration is not a status symbol. It is a switch that turns on charging and remitting.

Keep the paperwork that shows when you started. A fence contractor business that carries fence contractor business insurance will see the registration date in the same ledger as deposits and material purchases, which is where it belongs.

Zero-rated and exempt work

Almost all residential and commercial fence installation is taxable at the standard rate. Exempt supplies are narrow, so do not assume a job is exempt because the customer is a charity or a school board. Confirm before you quote.

What counts as revenue

Installation labour, materials you supply, gate hardware, removal of an old fence and delivery charges all count. A separate line for disposal does not remove it from taxable revenue.

Input tax credits on fence materials and equipment

Input tax credits are the reason registration is usually good news. You recover the GST/HST you paid on business inputs used to make taxable supplies.

A cedar order, a pallet of concrete mix, post caps, screws, a new auger, fuel for the truck and the cellphone bill all carry tax you paid. Claim those amounts as input tax credits against the tax you collected.

You need supporting documents. A supplier invoice showing the supplier's GST/HST number, the amount and the tax is the standard evidence. A till receipt for a few hundred dollars of hardware may not be enough.

The Canada Revenue Agency sets out the charging and collecting rules, including what you can and cannot claim, on charge and collect the GST/HST.

Some purchases are restricted. Meals and entertainment bought for the crew are limited, and personal use of a vehicle or a tool needs an apportionment. A fence contractor who claims the whole truck for a vehicle that also does school runs will lose part of the claim on review.

Capital equipment

A post-hole auger, a trailer or a skid steer is a capital purchase. The GST/HST paid is generally recoverable in full when you buy it, subject to the normal rules for capital property.

Keeping the claim clean

Sort receipts by quarter and file them against the job or the overhead they belong to. If a receipt is missing, the tax paid is usually gone for good, because you cannot claim what you cannot show.

Ontario HST and British Columbia PST plus GST

Ontario and British Columbia are the two provinces where fence contractors most often mix up the rates, because one is harmonized and the other is not.

Ontario HST is a single combined federal and provincial tax charged on taxable fence work in the province. The rate is set out in the Ontario government's Harmonized Sales Tax guidance. One rate, one line, one remittance to the CRA.

British Columbia is different. The province runs its own provincial sales tax under the Provincial Sales Tax Act and the federal GST applies on top, so a BC fence quote can carry two taxes at two rates, depending on whether PST falls on the materials, on the installation or on both.

The CRA's GST/HST calculator gives the federal rate and the current combined rates for provinces that use HST.

A BC fence contractor must decide whether the work is a service, a supply of goods, or both. Installing a fence on the customer's land is generally a service, while selling fence panels over the counter is a sale of goods. The PST treatment can differ.

Why the split matters on a quote

On a BC job, showing one blended tax line hides which tax is which. Show PST and GST separately so the customer, and your bookkeeper, can see the base each one applies to.

Ontario sub-contractors

If you sub-contract fence installation in Ontario, the sub charges you HST on their invoice and you claim it as an input tax credit. Do not net it off the invoice.

Alberta, Saskatchewan and Manitoba sales tax on fence work

Alberta charges no provincial sales tax. A fence contractor working in Alberta charges GST only, which makes quoting simpler than in any other western province.

Saskatchewan and Manitoba both levy a provincial sales tax alongside GST, and both have rules about what applies to construction and installation work. The provincial finance ministries publish the rates and the taxable services lists, and those lists change, so check them each season.

The three provinces do not share one formula. British Columbia's Provincial Sales Tax Act, Saskatchewan's The Provincial Sales Tax Act and Manitoba's The Retail Sales Tax Act each draw their own line between materials and installation. The fork that decides a quote is whether the province treats you as the user of the materials or as the supplier of a taxable service. Where you are the user, you pay provincial tax when you buy the fence boards, posts and concrete, and you do not add provincial tax to the contract price. Where the supply is taxable at your end, you buy the materials for resale with your provincial registration number and charge provincial tax on the taxable part of the contract. PST registration is separate from GST/HST registration: each of the three provinces issues its own number and expects its own return on its own schedule. Confirm the treatment in the province's bulletin for real property contractors before the quote goes out.

Material purchases across borders

A Manitoba contractor buying posts from an Alberta supplier does not pay Alberta provincial tax, but may owe Manitoba tax when the goods are brought in for use. Keep the bills of lading.

Prairie pricing pressure

Alberta's lack of a provincial sales tax is a genuine quoting advantage, but it does not change material costs or labour. Good pricing and profit discipline still decides whether the job makes money.

Quebec QST and Revenu Quebec filing for fence contractors

Quebec runs its own sales tax administration. QST is charged on taxable fence work in the province, and registration, filing and remittance go through Revenu Quebec rather than the CRA.

A fence contractor working in Quebec needs a Revenu Quebec file number, charges QST at 9.975% on taxable work, and files the QST return on the schedule Revenu Quebec assigns — monthly, quarterly or annually, depending on the size of the business. The Act respecting the Quebec sales tax mirrors the federal system in several ways: the small supplier threshold is also $30,000 over four consecutive calendar quarters, and the QST you pay on fence materials, fuel and equipment comes back as an input tax refund, the Quebec version of an input tax credit. The provincial finance and tax portal carries the current rate and filing information.

Quebec also applies its own construction rules, including obligations around holding licences and dealing with CNESST for worker coverage. Tax compliance sits alongside those, not instead of them.

Federal and provincial together

Quebec does not use HST. A Quebec fence contractor deals with QST provincially and GST federally, and both are reported through the Revenu Quebec system.

Out-of-province contractors in Quebec

If you take a fence job across the Ontario border into Quebec, you may need to register for QST even if you are already GST/HST registered. Check before the first invoice, not after.

Place-of-supply rules for cross-border fence jobs

Place-of-supply rules decide which province's tax applies when your business and the fence are in different places. For fence work, the property usually wins.

A fence is installed on land, and land has a location. The general rule for services related to real property points to the province where the property sits, so a Toronto contractor building a fence in Gatineau charges Quebec tax on that job.

This is why a fence contractor with a service area that crosses a provincial boundary needs more than one tax code in the invoicing system. One rate field is not enough.

Multiple sites on one contract

If a single contract covers fences at sites in two provinces, split the invoice by site and apply each province's tax to its own portion. Do not average the rates.

A short example, with round figures. One contract covers 80 metres at a site in Ottawa and 40 metres at a site in Gatineau. Bill the Ottawa portion at $9,600 plus 13% Ontario HST, and the Gatineau portion at $4,800 plus 5% GST and 9.975% QST. Two lines, two tax treatments, one invoice.

Record the site address

Put the installation address on every invoice, not just the customer's mailing address. It is the evidence for the rate you charged.

When the customer is a business

Business customers may self-assess in some situations, but that does not remove your obligation to charge correctly at the time of sale. Ask for their registration numbers and keep them on file.

How to show GST, HST, PST and QST on a fence quotation

A quotation is not an invoice, but the tax lines should look the same. Customers decide based on the total, so a vague tax line creates arguments later.

Build the quote in this order:

A fence contractor who lays out the quote, line by line, with tax as its own section, spends less time on the phone explaining the total.

Rates by province at a glance

The table below shows the structure of sales tax on residential fence work by province. Confirm current rates with the CRA calculator or the provincial ministry before you send the quote.

As of 2025 the rates are: Ontario HST 13%; British Columbia PST 7% plus GST 5%; Alberta GST 5% with no PST; Saskatchewan PST 6% plus GST 5%; Manitoba PST 7% plus GST 5%; Quebec QST 9.975% plus GST 5%.

What to leave off the quote

Do not bury tax inside the labour rate. Do not quote a round total with tax included unless you say so plainly, because the customer will assume the round number is the price.

Deposits and progress payments

Tax applies when the deposit is taken, not when the fence is finished. A deposit invoice needs the same tax lines as the final one.

Filing and remitting sales tax collected from fence customers

The tax you collect is held in trust, not working capital. Treating it as cash is the most common way a growing fence company gets into trouble.

Filing frequency depends on your revenue. Small registrants file annually or quarterly, larger ones monthly. The CRA assigns the reporting period when you register and can change it as you grow.

Set the money aside as it comes in. A separate account, funded with each deposit and each progress payment, means the remittance is never a scramble.

Filing steps

Price the base before you add tax

Many quoting errors start before the invoice exists. Charging properly for fence contractor services means the tax sits on top of a price that already covers labour, materials, overhead and margin.

Penalties and interest

Late remittance brings interest and penalties, and repeated lateness can affect how the agency views your file. If you cannot pay in full, file on time anyway and arrange the balance separately.

When you are new

If you are still setting up the business, tax registration is one of several requirements that come first, alongside licensing, insurance and workers' coverage.

Changing your fiscal year

A change in year end can shift reporting periods. Tell your accountant before the change, not after the first missed return.

Common questions