When it comes to acquiring a vehicle, the decision to buy or lease is far from universal. The right choice depends both on the profession (for example, a construction worker with heavy business use vs. a nurse with lighter use) and the tax status (self-employed or incorporated). The type of vehicle—whether an affordable gas-powered car, a luxury model, a pick-up truck, or an electric vehicle—also plays a decisive role. The following analysis provides concrete numerical examples to compare scenarios, highlighting the relative advantages and disadvantages of each combination.

Below is a comparison of buying vs. leasing with illustrative numbers for four types of vehicles, across two professions (construction worker vs. nurse) and two tax statuses (self-employed vs. incorporated). A 4-year horizon is assumed.

Common Assumptions

• Mileage: 20,000 km/year • Horizon: 4 years • Loan rate (purchase): 7% • Lease implicit rate: 6%

• Resale value after 4 years (% of cost):
  • Gas car 30k: 40% • Gas car 70k: 50% • Pick-up 80k: 50% • EV 65k: 51%

• Annual usage costs (fuel/charging + maintenance):
  • 30k gas: $2,400 + $800 = $3,200 • 70k gas: $3,000 + $1,200 = $4,200
  • Pick-up: $3,600 + $1,200 = $4,800 • EV: $900 + $500 = $1,400

• Business use percentage: Construction 80%, Nurse 40%.

• Tax rate applied to deductions (simple “tax shield”): Self-employed 40%, Corporation 12%.

• Passenger vs. non-passenger: The construction worker’s pick-up is treated as non-passenger (no luxury limits) since it’s used mainly for tools/equipment. The nurse’s pick-up is treated as a passenger vehicle.

• Illustrative limits for passenger vehicles: maximum depreciable base $36,000 (EV: $61,000). Lease cap $900/month. (These are illustrative, real limits vary.)

• Insurance, registration, EV rebates, down payments, excess mileage charges, sales tax credits, and exact timing of cash flows are ignored for simplicity.

Method: I estimate a total cost of ownership (TCO) = depreciation + interest + operating costs. Then I subtract a rough tax credit = (deductible amount × % business × tax rate). Final result = TCO net after taxes.

1) Self-Employed – CONSTRUCTION (80% business, 40% tax rate)

Net TCO over 4 years (approx.)

• Gas car 30k: Buy $27,896 | Lease $27,488

• Gas car 70k (luxury): Buy $52,704 | Lease $46,376

• Pick-up 80k (non-passenger): Buy $54,016 | Lease $54,976

• EV 65k: Buy $34,073 | Lease $32,562

Quick take

• Pick-up (job site use): Buying comes out slightly better.

• Luxury cars: Leasing clearly wins (luxury depreciation limits constrain purchase deductions).

• EV: Leasing slightly better here.

• 30k gas car: almost a tie; small edge to leasing.

2) Incorporated – CONSTRUCTION (80% business, 12% tax rate)

Net TCO over 4 years

• Gas car 30k: Buy $32,869 | Lease $32,326

• Gas car 70k (luxury): Buy $58,931 | Lease $56,053

• Pick-up 80k (non-passenger): Buy $65,485 | Lease $64,653

• EV 65k: Buy $42,807 | Lease $41,444

Quick take

• In a corporation, leasing often looks slightly better (low corporate tax rate reduces purchase deduction value).

• For the pick-up, leasing has a modest advantage.

3) Self-Employed – NURSE (40% business, 40% tax rate)

Net TCO over 4 years

• Gas car 30k: Buy $31,448 | Lease $30,944

• Gas car 70k (luxury): Buy $57,152 | Lease $53,288

• Pick-up 80k (passenger): Buy $62,208 | Lease $61,888

• EV 65k: Buy $40,312 | Lease $38,906

Quick take

• With a lower business-use %, leasing usually wins (less deduction value on purchase; lease spreads costs over time).

• Luxury and EVs: leasing shows a clear advantage.

• For the pick-up, results are very close.

4) Incorporated – NURSE (40% business, 12% tax rate)

Net TCO over 4 years

• Gas car 30k: Buy $33,934 | Lease $33,363

• Gas car 70k (luxury): Buy $60,266 | Lease $58,126

• Pick-up 80k (passenger): Buy $67,942 | Lease $66,726

• EV 65k: Buy $44,678 | Lease $43,347

Quick take

• As with construction under incorporation: leasing usually edges out buying, especially for luxury cars and EVs.

Practical Conclusions (Summary)

• Construction (80% business use)

  • Pick-up for job site use: Buying (self-employed) or leasing (incorporated) are both close; buying gets better if you keep it longer than 4 years.

  • Luxury passenger vehicles: Leasing is preferable (purchase deductions capped).

  • EVs: leasing has a slight edge.

  • 30k gas car: nearly neutral, leasing slightly more attractive.

• Nurse (40% business use)

  • Generally leasing is better (lower deduction value reduces purchase benefits).

  • Luxury & EV: leasing is clearly superior.

  • Pick-up (as passenger): nearly tied.

• Low-cost gas car (~30k): differences are small; leasing often wins due to flexibility.

When Buying is Better

• High % of business use (≥ 80%) and keeping the vehicle 6–8+ years.

• Pick-ups truly non-passenger (few or no luxury limits).

• Low interest financing and strong resale value.

When Leasing is Better

• Lower % of business use (30–50%).

• Luxury passenger vehicles (luxury deduction caps).

• Need to renew often, preserve cash flow, and reduce resale risk.

Important Notes

• If a nurse is salaried without proper employer forms (T2200, TP-64.3), deductions may be nil: in that case, decide based mainly on gross costs and cash flow (leasing often better).

• Luxury limits, CCA/lease rules, EV incentives, and tax details change regularly; numbers here are illustrative only.

• Insurance, plates, tires, rebates, sales tax credits, lease-end charges, etc. are not included.

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