Tax for Stittsville's Trades, Subcontractors and Home-Run Businesses

Drive the Carp Road corridor on a weekday morning and half the traffic is work trucks: framers, electricians, landscapers, HVAC crews, many of them run by people who live a few minutes away in the newer Stittsville subdivisions off Fernbank or Hazeldean. A lot of these businesses started the same way, one person with a trade, a truck, and a garage full of tools, invoicing under their own name. That is a real business the moment the first invoice goes out, and the tax questions arrive whether or not anyone has thought about them. The ones that come up again and again in Stittsville are the same three: when you have to charge HST, what you can actually deduct, and what changes if you incorporate.

The HST registration line is closer than people think

A sole proprietor does not register for HST on day one. You are required to register once your taxable revenue crosses thirty thousand dollars over four consecutive calendar quarters, and for a busy trade in a growing part of town that threshold arrives fast, sometimes inside the first season. Crossing it is not a milestone you get to celebrate quietly, because from that point you must charge HST, file returns, and remit.

The half that gets missed is the upside. Once registered you claim input tax credits for the HST you pay on materials, fuel, tools, and equipment, which for a trade buying lumber and supplies constantly is a meaningful recovery. Many small Stittsville operators voluntarily register before they have to for exactly that reason, because their customers are often builders and other businesses who simply claim the tax back anyway. The wrong move is to cross the threshold without noticing, keep invoicing without tax, and later owe HST you never collected out of your own margin.

Deductions live or die on records, not on what is deductible

The genuine business costs of a trade are deductible, and there are a lot of them: materials, subtrade labour, tools, safety gear, phone, insurance, and the truck. The truck is where most of the money and most of the errors sit. A vehicle used for both jobs and family life is only deductible for its business share, and that share has to be supported by a logbook showing business versus personal kilometres. The drive from a Stittsville driveway to a site in Barrhaven is business; the same truck doing the grocery run is not, and the tax cannot tell them apart without your record.

Tools follow their own logic. Smaller tools are generally expensed in the year you buy them, while larger equipment is capitalized and deducted over time through the capital cost allowance system rather than all at once. A home garage or basement used genuinely and regularly as the base of the business can support a home-office style deduction for a portion of heat, hydro, and property costs, but it has to be a real workspace, not a claim of convenience. None of this is exotic. It just requires that the receipts and the logbook exist, because a deduction you cannot document is a deduction you will lose on review.

The T5018 means the CRA already knows

Trades in Stittsville rarely work alone. A general hires subtrades, and a busy subcontractor hires helpers of their own, and the money that flows between them is reported. A business whose main activity is construction has to file a T5018, an information return listing amounts paid to subcontractors over the year. If you are the sub being paid, an amount for your work has been reported to the CRA under your number whether or not you report it yourself.

The practical effect is that construction income is highly visible, and the old habit of leaving cash jobs off the return is genuinely dangerous in this trade specifically. It also means your own records need to line up with what others filed about you. Keep your invoices, match the deposits, and treat the T5018 as confirmation that the income side of your return is not a matter of memory. The same goes when you are the payer: know that filing the slip is your obligation, not an optional courtesy.

When incorporating starts to make sense

Most Stittsville trades start as sole proprietors, and for a while that is the right call, because the business income simply flows onto your personal return and losses in a lean first year can offset other income. Incorporation becomes worth a serious look once the business is consistently earning more than the household needs to live on. A corporation is taxed at the low small-business rate on income left inside it, which lets you defer personal tax on the earnings you do not draw out, and it can smooth income across good years and slow ones.

It is not free. A corporation means separate filings, more bookkeeping, and real care about how you pay yourself, salary versus dividends being a decision with consequences for both tax and future RRSP room. There is also a liability angle that matters to trades carrying real jobsite risk. For a Stittsville subcontractor whose revenue has outgrown the sole proprietorship, the question is no longer whether incorporating is possible but whether the deferral and protection are worth the added machinery, and that is a numbers conversation specific to your own draw and growth.