Should You Buy a Car Through Your Corporation? The Real Math

Almost every incorporated business owner asks this at some point, usually right before signing something at a dealership. The pitch sounds obvious: the company pays, the company deducts, you drive. Free car, basically.

It is not free, and the reason has a name.

Quick Answer: For Most Owner Managers, No, and Here Is the Number That Proves It

If your corporation owns a vehicle that is available to you personally, CRA charges you a standby charge plus an operating cost benefit. These are taxable benefits added to your T4, and they are calculated on the cost of the vehicle, not on how much you drive it.

Take a $60,000 SUV, about $69,000 once BC taxes are added. If you drive it 80% for business, your annual taxable benefit is roughly $7,007, costing you about $2,803 in personal tax at a 40% marginal rate.

Drop to 40% business use and you lose the reduction entirely. The benefit jumps to about $22,680 and the personal tax to roughly $9,072. On the same vehicle. Every year.

Meanwhile, if you simply own the car yourself and your corporation pays you a per kilometre allowance, you receive that money completely tax free and the corporation deducts every dollar.

The rule of thumb: above roughly 80% to 85% business use, corporate ownership can win. Below that, the per kilometre allowance almost always wins. 

We deliver a broad range of Tax Accounting Services in BC and other locations across British Columbia.  

The Three Ways to Handle a Vehicle

Notice the one thing that never changes: you need a mileage log either way. There is no version of this where you get to skip the record keeping.

Corporation Buys It

The company owns the asset, claims capital cost allowance, and deducts operating costs. You pick up a standby charge based on 2% of the original cost per month, plus an operating benefit.

Corporation Leases It

The company deducts lease payments up to the monthly cap. Your standby charge is based on two thirds of the lease payments instead of 2% of cost, which is often, though not always, a smaller number.

You Own It and Charge Per Kilometre

You buy the car personally. You log business kilometres. The corporation pays you an allowance at the CRA prescribed rate. No taxable benefit, no standby charge, no CCA limits, no argument.

The Standby Charge, The Cost Nobody Budgets For

The standby charge exists because CRA views having a company car sitting in your driveway as a benefit in itself, whether you drive it or not.

How It Is Calculated

Purchased vehicle: 2% of the original cost, including GST and PST, for each month the vehicle is available to you.

Leased vehicle: two thirds of the lease payments for the year, excluding insurance.

On a $69,000 vehicle available all year, that is 2% × $69,000 × 12 = $16,560 before any reduction. That number does not care whether you drove 5,000 km or 50,000 km.

The Reduction Test

You can reduce the standby charge, but only if you clear both conditions:

1. Business use is more than 50% of total kilometres, and
2. Personal driving is under 1,667 km per month, which is 20,004 km per year.

Miss either one and you pay the full amount. There is no partial credit.

When you do qualify, the reduced standby charge is:

Full standby charge × (personal kilometres ÷ 20,004)

So on our $69,000 SUV with 30,000 total kilometres and 80% business use, personal driving is 6,000 km:

$16,560 × (6,000 ÷ 20,004) = $4,967

That is a meaningful reduction, and it is entirely dependent on a mileage log you can produce on request.

The Operating Cost Benefit on Top

Separately, if the corporation pays for fuel, insurance, maintenance, repairs or licensing, you are taxed on the personal portion of those costs. For 2026 the prescribed rate is 34 cents per personal kilometre.

There is an alternative. If your business use exceeds 50% and you notify your employer in writing before the end of the year, you can elect to use half of the reduced standby charge instead. Take whichever is lower.

In our example: 34 cents × 6,000 km = $2,040, versus half of $4,967 = $2,484. The 34 cent method wins.

Total taxable benefit: $4,967 plus $2,040 = $7,007.

CRA Limits That Cap Your Deduction

Even when the corporation owns the vehicle, CRA does not let it deduct the whole thing. For 2026:

The Trap in the Capital Cost Ceiling

Here is the part that makes corporate ownership of an expensive car genuinely bad. Your standby charge is calculated on the full purchase price, but your CCA is capped at $39,000 plus tax.

Buy a $120,000 vehicle through the company and you are taxed personally as though it cost $120,000, while the corporation deducts as though it cost $39,000. The gap is pure loss. This is why “can my corporation buy a luxury car” has a technically yes, practically terrible answer.

Note also that Class 10.1 does not allow a terminal loss on disposal, so if the vehicle depreciates faster than CCA, that loss is simply gone.

Zero Emission Vehicles, Where the Math Actually Flips

Class 54 raises the ceiling to $61,000 plus tax, which changes the picture considerably for electric vehicles in that price range. A $60,000 EV comes very close to being fully deductible by the corporation, while a $60,000 gas SUV is capped at $39,000. The standby charge is the same either way, but the corporate side of the ledger is much stronger.

If you were going to buy an EV anyway, corporate ownership deserves a serious look.

The Per Kilometre Allowance: Tax Free to You, Deductible to the Corporation

This is the option most owner managers should start with, because it is simple and it is efficient.

You own the vehicle. You track business kilometres. The corporation pays you:

• 73 cents per kilometre for the first 5,000 business kilometres
• 67 cents per kilometre thereafter
• Add 4 cents per kilometre in the territories

The allowance is tax free to you and fully deductible to the corporation, provided it is based solely on kilometres driven and is reasonable. Pay a flat monthly car allowance instead and the whole thing becomes taxable employment income.

One caution: if the corporation pays you an allowance and also pays for gas or insurance, the allowance stops being reasonable and becomes taxable. Pick one method and stay with it.

Full Worked Comparison: A $60,000 SUV, Three Ways

Assumptions: $60,000 before tax, $69,000 with BC taxes, 30,000 total kilometres a year, $9,000 in annual operating costs, 40% personal marginal rate, small business corporate rate of 11% in BC.

At 80% Business Use

Personal driving: 6,000 km. Business driving: 24,000 km.

The allowance route hands you $16,380 of tax free cash. The corporate route hands you a $2,803 tax bill and leaves the corporation owning a depreciating asset with a capped deduction. You are, of course, paying your own fuel and insurance out of that $16,380, roughly $7,200 at 80% of $9,000, which still leaves you around $9,000 ahead before considering depreciation.

At 40% Business Use

Personal driving: 18,000 km. Business driving: 12,000 km.

Business use is not above 50%, so no standby charge reduction is available.

This is the scenario that ruins people. Nine thousand dollars of personal tax, every year, for a car you already thought you owned. The swing between the two columns is over $17,000 a year.

The Break Even Point

Roughly speaking:

• Under 50% business use: corporate ownership is close to indefensible. The full standby charge applies with no reduction.
• 50% to 80% business use: the per kilometre allowance usually still wins, and it wins by more as the vehicle gets more expensive.
• Above 85% business use, with a vehicle at or under the CCA ceiling: corporate ownership starts to make sense.
• Zero emission vehicles under $61,000: the higher ceiling shifts the break even meaningfully in favour of the corporation.

When Corporate Ownership Does Make Sense

There are real cases, and they share a pattern: the vehicle is genuinely a tool, not transportation.

• Vehicles that are not “automobiles” under the Income Tax Act. Pickup trucks with seating for no more than three that are used more than 50% for transporting goods or equipment at a work site, and vans and pickups used 90% or more for business, fall outside the standby charge rules entirely. This is the single biggest exception and it is why trades businesses own their trucks.
• Vehicles kept at a business premises and not available for personal use. No availability, no standby charge, but you need to be able to prove it.
• Fleet vehicles driven by employees who are not shareholders.
• Very high business use by a business owner who drives constantly for work, in a vehicle priced near the CCA ceiling.
• Zero emission vehicles under the Class 54 ceiling.

The Mileage Log CRA Expects

Every reduction in this article depends on one thing, and it is the thing most people do not have.

A full logbook records, for each business trip: date, destination, purpose, and kilometres driven, plus the odometer reading at the start and end of the year.

CRA does allow a simplified approach. Keep a full log for one complete base year, then a representative three month sample in later years, and you may extrapolate, as long as the sample is within 10 percentage points of the base year result and your business has not materially changed.

Apps make this painless. A shoebox of receipts and a good memory do not survive an audit.

Frequently Asked Questions

Can I transfer my personal car into my corporation?

Yes, at fair market value. The corporation gets a capital cost equal to the lower of FMV and your original cost, and from that moment the standby charge applies. Most of the time this makes your tax position worse, not better.

Is commuting business use?

No. Driving from home to your regular place of work is personal, even if you own the company. Driving from your office to a client is business. This alone disqualifies many owners from the reduction test.

What if the corporation already owns a vehicle I want to buy out?

The corporation sells it to you at fair market value. Pay less than FMV and the difference becomes a shareholder benefit, taxable to you and not deductible to the corporation. There may also be recapture in the corporation.

Can my corporation pay for insurance and gas if I own the car?

It can, but then the per kilometre allowance is no longer considered reasonable and becomes taxable. Either the corporation pays a clean per kilometre allowance, or it pays the costs directly and you take the benefit. Do not mix.

What about a flat monthly car allowance?

Fully taxable as employment income. Only allowances based strictly on kilometres driven are tax free.

Does GST come into this?

Yes. The corporation can claim input tax credits on the vehicle and its operating costs, subject to the same capital cost ceiling, and there is a deemed GST remittance associated with the standby charge benefit. Your accountant handles this at year end.

What is the deduction limit if I lease?

$1,100 per month plus GST and PST for leases entered into in 2026, with an additional restriction that scales down the deduction on vehicles priced above the capital cost ceiling.

Should my spouse’s car be in the company?

Only if your spouse genuinely works in the business and the vehicle is genuinely used for it. Otherwise you have created a shareholder benefit with no offsetting deduction, which is the worst of both worlds.

Do I still need a log if I use the per kilometre allowance?

Absolutely. The allowance is only tax free if it is based on kilometres actually driven for business, and CRA will ask you to prove them.

Is a car loan interest deductible?

In the corporation, yes, capped at $350 per month. Personally, only if you are self employed or an employee who qualifies to deduct motor vehicle expenses.

Run Your Own Numbers With Us

The company car question does not have a universal answer. It has an answer for your kilometres, your vehicle price, your marginal rate and your province, and the gap between the best and worst choice is usually large enough to matter more than the colour of the car.

Maxpro Financials works with incorporated owners across BC, Alberta, Saskatchewan and Ontario on compensation planning, vehicle structuring, corporate tax and CRA reviews.

This article is general information current as of 2026 and is not tax advice for your specific situation. Deduction limits and benefit rates are set annually, so confirm current figures before relying on them.