Down payment 5–10–15% or 20%: what real impact does it have on your mortgage in Quebec?

Karine PelissierMortgage Broker

02 Jun 2026


5–10–15% or 20% Down Payment: What’s the Real Impact on Your Mortgage in Quebec?

You’ve found the ideal home, an interesting plex, or a rental property for your first investment… but how much should you put down?

5%? 10%? 15%? Or wait until you have 20%?

In Quebec, this choice directly impacts:

  • your qualification ability;
  • the cost of your Mortgage (interest + insurance premium);
  • your future flexibility (refinancing, projects, investments);
  • your risk level as a first-time buyer.

Let’s concretely see what each down payment level changes for your first-time buyer mortgage… and for your rental property, multiplex, or even commercial real estate projects.

1. Reminder of basic rules in Canada / Quebec

a) Minimum down payment for a Owner-occupied Home

For a primary residence (house, condo, 2–4 unit plex with owner occupation):

  • Price up to $500,000:
  • Minimum down payment: 5%
  • Mortgage must be insured (CMHC, Sagen, Canada Guaranty)
  • Portion between $500,000 and $1,000,000:
  • 5% on the first $500,000
  • 10% on the portion above $500,000
  • Beyond (up to ~$1.5M according to recent rules):
  • Possibility of having an insured loan up to this ceiling, with required minimum down payment and compliance with the stress test.
  • 20% down payment or more:
  • Mortgage uninsured (conventional), no CMHC premium, amortization often possible up to 30 years.

For a first-time buyer, there are now programs allowing a 30-year amortization even with less than 20% down, but with a premium of about 0.2% on the mortgage loan insurance premium.

b) Rental property, plex, and rental investments

  • Plex / Rental property 2–4 units occupied by owner:
  • Minimum down payment possible starting from 5% (depending on income, type of building, insurer’s conditions).
  • 100% rental (pure investment):
  • Minimum down payment 20% (often more, 20–25%), uninsured mortgage.
  • Multiplex 5+ units and Commercial building (Retail, offices, industrial, mixed):
  • “Commercial” financing
  • Down payment typically 25%+ (sometimes 35% depending on risk, location, revenue quality).

The Down payment Mortgage therefore does not have the same reality whether you’re buying your home, a Plex occupied by you, or a Commercial income property.

2. 5% Down Payment: the First-Time Buyer’s Springboard

Advantages

  • Rapid access to ownership: ideal for a first-time buyer who wants to stop paying rent.
  • Allows you to benefit earlier from the potential appreciation in value of the home or plex.
  • Possibility to choose a amortization up to 30 years for a first-time buyer mortgage, which reduces monthly payments (but increases total interest cost).

Disadvantages

  • Obligatory mortgage insurance (CMHC / Sagen / Canada Guaranty):
  • Premium may exceed 4% of the loan amount (added to the Mortgage).
  • Premium if amortization is 30 years with 5% down payment.
  • Higher total interest cost (you’re financing a larger amount, premium included).
  • Less equity in the property:
  • More vulnerable if value falls.
  • Less room for future refinancing or another Investment (rental, second home, etc.).

In summary: 5% down payment on a home = you enter the market faster, but at the cost of a heavier Mortgage and expensive insurance.

3. 10–15% Down Payment: the “balance” zone

With 10% or 15% down, you’re still in the insured mortgage world, but with lower insurance premiums.

Advantages

  • Lower CMHC premium:
  • The higher the down payment, the lower the insurance premium percentage.
  • Lower monthly payment than with 5% down for the same home.
  • Reduced risk:
  • You start with more equity in the property (home or plex).
  • Better protection if the market corrects.

Concrete impact on the Mortgage

For the same income:

  • It’s often easier for a first-time buyer to qualify with 10–15% down, because:
  • The loan amount is lower;
  • The monthly payment (or biweekly) is lighter;
  • Debt ratios are better respected.

In summary: 10–15% down mortgage is often the best compromise between access and safety for a first-time buyer.

4. 20% and up: the classic down payment threshold

At 20% down payment:

  • Your Mortgage becomes conventional (uninsured).
  • No mortgage insurance premium is added to the financed amount.
  • Most institutions accept an amortization up to 30 years (though many buyers choose 25 years).

Advantages

  • Lower total interest cost in the long term since you’re no longer financing the premium.
  • More refinancing flexibility:
  • Possibility to release equity for future investments (rental property, multiplex, countryside home, etc.).
  • Better position to negotiate terms at renewal.
  • Greater resilience:
  • If property value declines, you generally remain in positive territory.

Limitations

  • The challenge is to assemble 20% of down payment in a market where prices have risen.
  • Waiting too long to accumulate 20% carries an opportunity cost:
  • Possible price increases;
  • Potential rise in interest rates;
  • Additional years spent renting.

In summary: 20% down payment is the healthiest long-term solution, but not always realistic in the short term for a first-time buyer.

5. And for a rental property, multiplex, or commercial building?

a) Rental property (2–4 units)

  • With owner occupancy (you live in one unit):
  • Minimum down payment sometimes starting from 5–10%, subject to insurer’s rules.
  • Possible insured mortgage, with a premium similar to a home.
  • 100% rental (pure investment):
  • Rental property down payment minimum 20%, sometimes 25% depending on the situation.
  • No mortgage insurance, mortgage purely conventional.

b) Multiplex 5+ units and Commercial building

For a 5+ unit multiplex or a Commercial building (retail, office, industrial, mixed):

  • Switch to commercial financing:
  • Detailed analysis of building income and expenses;
  • Down payment commonly 25–35%;
  • Different terms and rates, higher fees;
  • Depreciation and terms specified on a case-by-case basis.

Investment conclusion:

The more "complex" the building (number of units, commercial use, ground-floor retail, etc.), the higher the down payment required. Leverage is powerful, but so is risk; a clear strategy is essential.

6. How your Down Payment REALLY influences your future finances

Regardless of property type (home, plex, rental building, Commercial), your down payment level affects:

  1. Mortgage cost
  • Less down payment = more borrowed capital + insurance premium.
  • More down payment = less interest paid over time.
  1. Your future borrowing capacity
  • A first purchase with a “tight” mortgage (little equity, high payments) makes it harder:
  • to refinance;
  • to buy another property;
  • to consolidate debts.
  1. Your risk tolerance
  • With 5% down, a market correction can wipe out your equity.
  • With 15–20%, you have a cushion.
  1. Your management flexibility
  • A lighter mortgage allows you to absorb rate increases, temporary income loss, or major renovations more easily.

7. So, 5–10–15% or 20%: which to choose?

  • Are you a first-time buyer and the market is rising quickly?
  • A 5–10% down mortgage can be a good springboard, especially if you’re disciplined to pay down faster or refinance intelligently later.
  • Do you already have savings or a good RESP (RRSP) available?
  • Target 10–15% to reduce the insurance premium and improve your security without getting blocked in renting too long.
  • Do you already have substantial capital or aim quickly for investment (rental property, plex, Commercial)?
  • Reaching 20% down payment on your first home puts you in an excellent position to build a real estate portfolio (plex, multiplex, commercial building, etc.) with better leverage and less stress.

Conclusion: the best down payment is the one that supports your strategy

The real question isn’t just “how much down payment minimum can I make?”, but:

“What down payment level best aligns my Mortgage, my investment plans, and my risk tolerance?”
  • 5%: quick access, higher cost, more risk.
  • 10–15%: excellent cost/security balance for a first-time mortgage.
  • 20%+: lower long-term cost, more flexibility for the future (rental property, multiplex, Commercial).

If you’re unsure between several scenarios (Home down payment 5% vs 10% vs 20%, rental property down payment 20%, etc.), the next step is to calculate your payments and the total cost of each option.

A mortgage broker in Quebec can simulate different Financing structures (residential, plex, Commercial) to help you choose the down payment strategy that best serves your life plan… not just today’s purchase.

The information in this article is for general purposes only and may not reflect current laws or regulations. Verify any details with a qualified professional before making decisions. Some portions may have been created with AI assistance and should be confirmed for accuracy.

Written by Karine Pelissier

Mortgage Broker