There’s a belief that shows up almost the moment a chiropractor incorporates: that a whole new world of tax efficiency has just opened up, and anything remotely business-adjacent can now be run through the corporation. There’s a kernel of truth in it — incorporating does create real planning opportunities. But the version most people are working from is a misunderstanding, and it tends to cost more than it saves. Worse, the bill usually arrives a year later, in the form of a tax surprise nobody planned for.
Every deductibility question comes down to two tests.
Was the expense incurred in the process of earning business income — was it genuinely required to do the work? And is the amount reasonable?
The classic illustration: you need a pen on your desk to do your job. Fair enough. You don’t need a hundred-thousand-dollar pen. Both tests have to hold.
There’s a useful gut check underneath the technical rules. If the thought of sitting across from an auditor and explaining a particular expense makes you squirm a little, you already know how that conversation would go. That discomfort is usually accurate.
The question comes up constantly. Can my corporation own or lease my vehicle? Technically yes — but only the portion of use that genuinely relates to earning business income is deductible, and for most practice owners that portion is small.
Driving from home to the clinic you work at every day is a commute. It doesn’t count, no matter how the payment is structured. What does count: travelling between two or three clinic locations, or driving to a conference in another city and back. That mileage is legitimately claimable at a set per-kilometre rate.
What we see far more often is every vehicle cost — the payment, insurance, fuel, maintenance — running through the corporation regardless of actual business use. If the accountant is doing their job, most of that eventually gets reassigned as a personal benefit at year-end and attributed back as income, usually a dividend. The tax bill on that dividend wasn’t in anybody’s plan.
The cleaner structure is almost always the reverse. Own the vehicle personally, track the business kilometres, and claim mileage. If 5% of your driving is business use, the corporation reimburses you for that 5% — tax-free money coming to you, instead of 95% of a vehicle’s ownership costs being clawed back from you as income at year-end.
If you do notes and administrative work from a home office, a proportional share of square footage, home insurance, alarm monitoring, and internet is legitimately deductible. Proportional is the operative word. Doing some charting at the kitchen table doesn’t make the full internet bill a business expense — it makes some percentage of it one.
A home-based clinic is a different situation. When your home is your principal place of business, the door opens wider. But it’s still a portion, because a good chunk of the house is still being lived in.
One caveat worth holding onto: how aggressive this gets depends heavily on your accountant, and if an expense is challenged in an audit, the buck stops with the business owner. The accountant who signed off doesn’t absorb the consequences. Having the right professionals in your corner matters, and so does understanding what they’re doing on your behalf.
Meals and entertainment run through a business are 50% deductible — the logic being that roughly half the benefit accrues to the person eating the meal and half to the business relationship being built.
The dollar amount is rarely the issue. The volume is. Opening up a year of transactions and finding 120 separate meal charges — a lot of delivery apps, a lot of small tabs — raises a harder question than a handful of larger ones: can you document, for each of those, who you met with and what business purpose it served? A reasonable total spread across a hundred loosely documented transactions is a much softer target in an audit than a smaller number of well-supported ones.
Staff events are the exception, and a good one. When an event is open to all staff, it’s 100% deductible. That’s the system deliberately incentivizing employers to look after their people, and it’s worth using.
Green fees are not deductible. Full stop. It doesn’t matter who you’re golfing with or how much legitimate business gets discussed between the fourth and fifth holes. The same applies to club and membership dues where the main purpose is recreation or dining — golf, country club, racquet club, and eventually, presumably, pickleball.
The one bright spot: a meal in the clubhouse afterward, with a real business purpose and an itemized receipt kept separate from the green fees, falls under the normal 50% meals and entertainment rule.
This is where most of the confusion actually lives, and it’s worth separating carefully. Deductible and payable by the corporation are two different concepts.
Take a $200 dinner with a referral partner on the corporate card. The full $200 leaves the business account and the full $200 is recorded as a meals and entertainment expense on the books. Nothing unusual so far. Then at tax time, when the corporate return is prepared, there’s a schedule reconciling total income to taxable income — and one of the standard adjustments is an add-back. Half of that meal, $100, gets added back to taxable income. It’s a permanent difference: that $100 is never deducted, this year or any year.
What does it actually cost? At an Alberta small business rate of 11%, the add-back on a $200 dinner works out to about $11 of additional corporate tax. That’s the entire consequence.
Golf works the same way, just at 100%. Take a referral partner or a prospective associate out, put the green fees on the corporate card, and the full amount gets added back at tax time. You get no deduction — but you funded the round with corporate dollars taxed at roughly 11% rather than personal dollars taxed at 35%, 45%, or more. The saving is real and meaningful.
The catch is the same one that governs everything else here: it has to be a genuine business expense. Taking a referral partner golfing is an add-back and nothing more. Running your personal Saturday foursome through the corporation is a shareholder benefit, which gets attributed back to you personally and taxed at your personal rate.
A client came to us with an arrangement their accountant had encouraged: if it feels remotely business-related, put it through the business and we’ll sort it out at year-end. So they did. Kids’ swimming lessons. Home decor. Travel. A wall of meals. Tens of thousands of dollars.
To the accountant’s credit, they did sort it out — going through the transactions, deciding what was reasonable and what wasn’t. The problem was the answer. Roughly 80% of it wasn’t a legitimate deduction, so it was reattributed back to the client as personal income. That’s a $20,000-plus addition to a personal tax return that nobody had saved for.
And then it repeats. The following year’s spending is already flowing through the same way, so the surprise bill becomes a recurring one — the same messy cycle that random draws from a corporation create. The client, meanwhile, had heard one sentence and remembered only that: my accountant said I could put more through the business. They had no idea 80% of it was coming back at them.
The likely origin of that advice is a rule of thumb — expenses as a percentage of gross revenue, below which the CRA is statistically less likely to look. This was a high-volume practice with an associate’s low overhead: no big rent, no payroll. On paper there was “room” to push more through. The room was theoretical. The tax bill wasn’t.
Pay for anything ambiguous personally. Bring it to your accountant afterward and ask whether it qualifies. If it does, the corporation now owes you money — a clean, tax-free reimbursement.
That’s the whole shift, and it inverts the risk. Instead of an overreaching expense getting unwound into taxable personal income twelve months later, you get a small tax-free payment coming back to you. Business stays business, personal stays personal, and there are no surprises in April.
Was it incurred to earn income? Is the amount reasonable? Can you prove it? Those three questions resolve almost every gray area you’ll encounter.
Beyond that, it’s worth being honest about the stakes. Optimizing a few more write-offs, or playing a little looser with the rules, is not going to change your financial life. It doesn’t move the needle. What it reliably does is add stress, audit risk, and the possibility of back taxes plus interest — the CRA can reopen a file for years, and spot audits targeting one specific expense category on professional corporations are a real thing.
The juice isn’t worth the squeeze. Get the systems clean, keep the documentation, run the right expenses through the right cards, and spend your energy on the decisions that actually build wealth. There are much bigger fish to fry.
Listen to episode 044 of The Chiro Money Show →
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