Finance or pay cash for a car? Finance or pay cash for a car? Finance or pay cash for a car? It's the big question when it's time to replace your vehicle: should you empty your savings account and pay for the car in one go, or spread the cost over several years with a loan? The honest answer is that it depends on your financial situation, your interest rate and your plans. At BonAuto, in Saint-Joseph-du-Lac, we help buyers from the Laurentians and the North Shore of Montreal who are torn between the two every week. Here is how to see clearly, with numbers to back it up.
Paying cash: the advantages and the pitfalls
Paying cash has an obvious appeal: no interest to pay. The advertised price, plus taxes (GST 5% + QST 9.975% = 14.975% at a dealership), is exactly what you will pay. No monthly payment eating into your budget, no credit file to put together, and the transaction is settled quickly. You own 100% of the vehicle as soon as you sign, free to resell whenever you want.
The pitfall is liquidity. Taking out $18,000, $25,000 or more in one go can drain your emergency cushion. If a roof leaks, a job loss happens or another unexpected expense comes up, you may have to borrow at a much higher rate (credit card at ~20%, personal line of credit) than what a car loan would have cost you. In other words, paying cash can be penny-wise and pound-foolish if it leaves you with no reserve.
- Advantages: zero interest, no monthly commitment, immediate ownership, simplicity.
- Drawbacks: weakened emergency cushion, capital tied up in an asset that depreciates, no repayment history created.
Financing: spread the cost, keep your liquidity
Financing lets you keep your savings while driving a reliable vehicle. You pay a down payment (or your trade-in) and then monthly payments over 36, 48, 60 or 72 months. The hidden advantage: regular, on-time payments build your credit score, which helps with a future mortgage or your next loan. It is particularly useful if you are looking to rebuild your file. See our bad credit financing page.
The cost of financing is interest. The lower the rate and the shorter the term, the less you pay in total. Beware of long terms (72-84 months): the monthly payment shrinks, but the accumulated interest climbs and you risk owing more than the vehicle is worth ("negative equity").
Total cost by rate: a worked example
Let's take a $20,000 vehicle financed over 60 months, and compare it to paying cash for the same amount. The figures below are approximate illustrations to understand the effect of the rate. Your actual offer depends on your file; use our calculator for your specific case.
| Option | Rate | Approx. monthly payment | Approx. total interest |
|---|---|---|---|
| Cash | n/a | $0 | $0 |
| 60-month financing | 4.99% | about $377 | about $2,640 |
| 60-month financing | 8.99% | about $415 | about $4,900 |
| 60-month financing | 12.99% | about $455 | about $7,300 |
These rates are hypothetical and only illustrate the calculation: they are not BonAuto offers.
The lesson: at 4.99%, financing costs a few thousand dollars more than cash, but you keep $20,000 available. At 12.99%, the accumulated interest becomes serious and the "cash" argument gains strength. The decision threshold mostly comes down to the rate you are offered.
When each option makes sense
Paying cash is often the right choice if:
- You keep a solid emergency cushion (3 to 6 months of expenses) after the purchase.
- The financing rate offered is high (above ~10%).
- You are buying a more modest vehicle where the interest gap stays small.
- You don't need to build or maintain your credit score.
Financing is often wiser if:
- You are offered a low rate and prefer to keep your cash invested or in reserve.
- You want to build a credit history ahead of a mortgage.
- Paying cash would drain your emergency savings.
- You can comfortably absorb the monthly payment without stretching the term excessively.
A middle-ground strategy works very well: put down a substantial down payment(often your trade-in vehicle, which also reduces the taxable amount at a dealership), then finance the rest over a short term. You limit the interest while keeping some room to manoeuvre. Our trade-in appraisal gives you the value of your current car as a down payment in a few minutes.
Don't forget the warranty and purchase fees
Whether you pay cash or on credit, buying from a merchant gives you a safety net that a private sale doesn't: the legal warranty under the Consumer Protection Act, whose length depends on the age and mileage of the vehicle. It's an argument to put on the scale: saving on the price of a vehicle without a warranty can cost a lot in repairs. Also plan for SAAQ registration and plate fees (in 2026: $217.41 in annual duties for a passenger vehicle, $10.60 in registration fees and $2.70 for a new standard plate) as well as the new tire levy.
Our recommendation
There is no universal wrong answer: there is the answer that fits your rate, your savings and your goals. Run the numbers calmly with our payment calculator, ask for a no-obligation pre-approval to find out your real rate, then compare the total cost of both scenarios. Once you have your numbers, browse our used vehicle inventory: our team in Saint-Joseph-du-Lac will help you structure the most advantageous arrangement for you, throughout the Laurentians and the North Shore of Montreal.