Should the business buy the vehicle, or should you?
The vehicle costs the same either way — the tax treatment doesn’t. GST input tax credits, CCA, the standby benefit, and the per-km allowance all turn on who’s on title. We compare the BC after-tax cost of each route and tell you the business-use percentage where they cross.
Pick the right tab (incorporated or sole proprietor). Enter the vehicle price, your annual kilometres, and what share of those kilometres are for business. The cards compare after-tax cost over your hold period and the verdict tells you which side of the 51% line you’re on.
Inside the corporation
—Outside the corporation
—Calculating…
At what business-use share do the two options have equal after-tax cost? On pure tax math at BC small-business rates, the per-km allowance is hard to beat — the breakeven often sits above 100%, meaning outside wins across the range.
When a corporation owns an automobile and makes it available to an employee or shareholder for personal use, the personal-use share becomes a taxable benefit on the individual’s T4 (or s. 15(1) shareholder benefit). It has two parts — a standby charge for the availability of the vehicle, plus an operating cost benefit for personal kilometres — with a generous reduction once business use exceeds 50%.
GST input tax credit — where it actually flows
Logbook method
—No claim (baseline)
—Per-km benchmark
—Calculating…
GST input tax credit — how proration works
ITC proration and the per-km allowance — the rules at the heart of this.
GST Input Tax Credit (ITC) on vehicles
Ceiling 1 — the prescribed amount. For passenger vehicles, the ITC is calculated as if the vehicle cost the prescribed amount ($39,000 for gas; $61,000 for ZEVs). Spend more and the extra GST is simply lost — no ITC at all on the overage.
Ceiling 2 — commercial use. Only the share of use in commercial activity qualifies. A 70% business / 30% personal vehicle generates 70% of the otherwise-allowable ITC.
Per-km allowance ITC. If the corporation pays a reasonable per-km allowance to an employee or owner for a personally-owned vehicle, the corp can claim an ITC equal to 5/105 × the allowance paid — effectively recovering GST embedded in the allowance.
| Year | Class 10.1 (gas) | Class 54 (ZEV) | Allowance ≤ 5k km | Allowance > 5k km |
|---|---|---|---|---|
| 2026 | $39,000 | $61,000 | $0.73 | $0.67 |
| 2025 | $38,000 | $61,000 | $0.72 | $0.66 |
Business vs personal use allowance
Incorporated — corp owns: personal use creates a taxable T4 benefit on the employee/owner — the standby charge (for availability) plus the operating cost benefit ($0.34/km of personal driving for 2025/2026). Both can be reduced when business use exceeds 50%. See the dedicated standby calculator on the incorporated tab for the step-by-step.
Incorporated — personal owns: the corporation can pay a tax-free per-km allowance (up to CRA’s reasonable rate). The allowance is deductible to the corp, tax-free to the owner, and lets the corp claim an ITC at 5/105. No standby charge in this path — the vehicle is the owner’s, not the corp’s.
Steven’s rule of thumb: the vehicle goes in the entity that uses it 51%+ of the time. The tax math at BC small-business rates often favours outside ownership even higher than that, but the rule still holds on practical grounds (km tracking, fleet insurance, liability).
Sole proprietors: no separate legal entity, so no standby charge and no tax-free allowance from yourself. Personal use is just excluded from the deduction. Claim the business-use share of actual costs on T2125, with the same Class 10.1 / 54 capital-cost cap and prorated ITC.
The fine print, briefly
How is the standby charge actually calculated?
The standby charge applies only to corporation-owned automobiles made available to an employee (ITA s. 6(1)(e)) or shareholder (s. 15(5)). Sole proprietors don’t have a standby charge — they simply prorate actual costs by business use on T2125.
For a purchased corporate-owned vehicle, the standby charge is:
Standby = (A ÷ B) × 2% × cost × months
Where A = personal km driven (or B if larger); B = 1,667 × months available. The reduction (A < B) only applies when business use > 50% and personal km are under 1,667 × months (20,004 km/yr if always available). Otherwise A = B and the full 2% applies.
The operating cost benefit is separate: $0.34/km × personal km (2025/2026 rate; $0.31 for sales/leasing employees). If biz > 50% and the employee notifies the employer in writing by December 31, they can elect to use 50% of the standby charge instead — whichever produces the lower benefit.
The dedicated calculator on the incorporated tab walks through this step by step. The top-bar simple / detailed toggle controls whether the main scenario comparison uses a quick proxy or the full CRA formula.
What counts as a “reasonable” per-km allowance?
CRA publishes prescribed per-km rates each year. For 2026 the rates are $0.73/km for the first 5,000 km and $0.67/km thereafter (2025: $0.72 / $0.66; plus $0.04/km in NWT, Yukon, and Nunavut — not BC). An allowance at or below these rates is presumed reasonable and tax-free to the recipient.
Pay above the rate and the allowance becomes taxable. Pay a flat monthly amount unrelated to kilometres and it’s also taxable. The allowance must be based on actual business kilometres driven.
Why does the calculator cap CCA at $38,000?
That’s the prescribed Class 10.1 capital cost limit for non-ZEV passenger vehicles ($39,000 for 2026; $38,000 for 2025). A vehicle costing $55,000 gets the same CCA shield as one costing $39,000 — the extra $16,000 generates zero deduction. The cost cap also drives the ITC ceiling for GST-registered claimants.
Zero-emission passenger vehicles use Class 54 with a higher cap of $61,000. There are also short-window incentives for ZEV immediate expensing that aren’t modelled here — ask first if you’re buying a new ZEV.
What about GST on operating costs?
GST on fuel, insurance, and repairs paid by a GST-registered business is generally recoverable as an ITC, prorated by commercial use just like the capital ITC. The calculator enters operating costs after-tax (i.e. as cash spent) for simplicity, which understates ITC recovery slightly. The directional answer doesn’t change — the bigger lever is the capital ITC and the standby benefit.
Insurance is GST-exempt in BC, so there’s no ITC on the insurance portion regardless.
Can I switch from personal ownership to corporate ownership later?
Yes — you can sell the vehicle to your corporation at fair market value at any point. The corporation pays GST/PST on the purchase (and claims the prorated ITC), restarts CCA on the new acquisition cost (still subject to Class 10.1 / 54), and you recognize any gain or loss personally. Two practical wrinkles: (1) the corp can only claim the ITC if it’s GST-registered and the vehicle is for commercial use; (2) PST is paid again on the transfer, which can be a meaningful cost — talk to us before doing this.
What does this calculator deliberately ignore?
Financing. We assume cash purchase to keep the comparison clean. Use our buy-vs-lease-vs-finance calculator if financing is part of the picture.
Recapture / terminal loss. Class 10.1 vehicles have special rules (no recapture, half-year deemed CCA on disposition); we apply the same special handling to Class 54.
Time value of money. Nominal cashflows only. For a sophisticated NPV, see the buy-vs-lease-vs-finance tool.
HST-province scenarios. BC-only — GST 5% + PST 7%. The arithmetic differs in HST provinces (recoverable ITC on the full HST changes the math).
ZEV incentive expensing (Class 54 100% first-year for new ZEVs). Phased out for many cases by 2025; we use straight 30% DB with the higher cap.
Let’s sanity-check it before you sign the bill of sale.
We’ll walk through your actual usage pattern, model the standby benefit on your numbers, and price the GST recovery you’re leaving on the table either way. Half an hour usually settles it.
Book a 30-min chat →Send us an email