If you’re shopping around for a mortgage to purchase an investment property, you may wonder what type of mortgage best suits your needs and objectives as a real estate investor. The two most common standard options are open and closed mortgages, each with distinct benefits and drawbacks.
Whether you opt for an open or closed mortgage ultimately depends on your ability and intention to pay down the loan, your investment timeline, and your need for flexibility. Understanding these options before committing helps ensure you select financing aligned with your investment strategy.
Understanding the Core Difference
Open and closed mortgages differ primarily in prepayment flexibility and interest rates.
| Feature | Open Mortgage | Closed Mortgage |
|---|---|---|
| Prepayment | Unlimited flexibility | Restricted with penalties |
| Interest Rate | Higher | Lower |
| Best For | Short-term or uncertain situations | Long-term stable holding |
| Cost | Higher ongoing costs | Lower ongoing costs |
| Exit Flexibility | Easy to exit | Penalties for early exit |
This basic trade-off between flexibility and cost affects total financing expense.
Defining Closed Mortgages
Closed mortgages restrict prepayment beyond specified limits without penalty. In exchange for this restriction, lenders offer lower interest rates than open alternatives.
Most closed mortgages allow limited prepayment, typically ten to twenty percent of the original balance annually plus increased payment amounts. However, paying beyond these limits or breaking the mortgage before term end triggers prepayment penalties.
Benefits of Open Mortgages
Open mortgages allow prepayment of any amount at any time without penalty. This flexibility comes at a cost through higher interest rates than comparable closed products.
Open mortgages make sense when you anticipate paying off or refinancing the mortgage before term completion. The higher rate is acceptable when balanced against avoided prepayment penalties.
Investment Considerations
Investment property situations affect which mortgage type makes sense.
Long-Term Hold Strategies
If you plan to hold properties for extended periods with stable financing, closed mortgages typically provide lower total costs. The rate advantage compounds over full mortgage terms, saving substantial interest expense.
Investors confident in their holding timeline can commit to closed mortgages knowing they won’t trigger prepayment penalties through early exit.
Short-Term or Uncertain Situations
When investment timelines are uncertain or relatively short, open mortgages provide valuable flexibility. Properties purchased for renovation and resale, short-term holds, or uncertain situations may warrant open financing despite higher rates.
Calculate whether flexibility value exceeds extra interest cost in your specific situation.
Refinancing Expectations
If you expect to refinance before term completion, evaluate total costs including potential prepayment penalties. Sometimes paying open mortgage rates is less expensive than closed rates plus penalties.
Calculating Your Best Option
Comparing options requires analyzing specific numbers for your situation.
Rate Difference Impact
Here’s where the math gets real. Take a $400,000 investment mortgage. A closed rate at 4.5% versus an open rate at 5.5% means you’re paying roughly $4,000 more in interest per year for the open product.
Over a two-year hold, that’s about $8,000 in extra interest. Over five years, you’re looking at $20,000 or more. That premium is the price of unlimited prepayment flexibility.
Do this: calculate total interest cost over your expected holding period at both rates. The difference is what you pay for the right to exit or pay down whenever you want. If that number is smaller than a likely prepayment penalty on a closed mortgage, open financing may cost you less overall.
Penalty Analysis
Closed mortgage penalties usually come in two flavours: three months’ interest, or an interest rate differential (IRD). Lenders charge whichever is higher.
Three months’ interest is straightforward. On a $400,000 balance at 4.5%, that’s roughly $4,500. IRD penalties hit harder. If rates have dropped since you locked in, the lender calculates the interest they’d lose over your remaining term. I’ve seen investors face $15,000 to $30,000 IRD hits on mid-sized investment mortgages.
Estimate the penalty you’d face if you sold or refinanced 18 to 24 months into a five-year closed term. Then compare that number to the cumulative rate premium on an open mortgage for the same period. Whichever costs less is your answer.
Break-Even Analysis
Find the point where closed mortgage savings equal the cost of losing flexibility. Here’s a simple way to run it.
- Calculate the annual interest difference between open and closed rates on your loan amount.
- Estimate the prepayment penalty you’d pay if you broke the closed mortgage early.
- Divide the penalty by the annual rate savings. That gives you the break-even holding period in years.
Example: $5,000 annual rate savings on a closed mortgage, and a $12,000 estimated penalty to exit early. Break-even is 2.4 years. Hold longer than that without breaking the mortgage, and the closed product wins. Exit sooner, and you may have been better off open.
If your expected hold exceeds this break-even and you’re confident you won’t need to refinance or sell early, closed mortgages usually make sense. If your timeline is fuzzy, weight the decision toward flexibility.
Hybrid Approaches
Some situations benefit from combining approaches.
Convertible Mortgages
Some lenders let you start open and convert to closed later in the term, or the reverse. You get flexibility up front, then lock in a lower rate once your plans firm up.
These work well when you’re buying a value-add property. You may want open terms during reno and lease-up so you can inject capital or refinance without penalties. Once the property stabilizes and you plan to hold, convert to closed and stop paying the open-rate premium.
Watch the conversion terms closely. Some products limit when you can convert, and the closed rate you receive may not match today’s best posted rates. Ask your broker exactly what rate you’ll get on conversion and whether any fees apply. Used right, convertibles give you a middle path without permanently locking into higher open rates.
Split Financing
You don’t have to pick one approach for every property. Investors with multiple doors often run a mix: closed mortgages on stable, long-term holds, and open (or shorter-term) financing on assets they may sell, refinance, or recapitalize sooner.
Say you hold six rentals. Four are cash-flowing keeps with five-year closed terms at the best rate you can get. Two are candidates for sale or BRRRR-style refinance within 18 months, so those sit on open or convertible products.
This spreads your risk. You’re not overpaying for flexibility on properties you’ll never touch early, and you’re not trapped by penalties on the ones you might. Review the mix annually as your portfolio and goals shift.
Professional Guidance
Mortgage decisions warrant professional input given their long-term financial impact.
Mortgage Broker Advantages
Mortgage brokers understand various products across multiple lenders. They can identify options you might miss and help calculate which approaches best serve your objectives.
Investment-Specific Expertise
Work with professionals who understand investment property financing specifically. Investment situations differ from owner-occupied purchases, and appropriate advice reflects these differences.
Frequently Asked Questions
Which mortgage type is better for investment properties?
How much higher are open mortgage rates?
What triggers prepayment penalties on closed mortgages?
Can I switch from closed to open during my mortgage term?
How are prepayment penalties calculated?
Are convertible mortgages a good middle-ground option for investors?
When does a closed mortgage make the most financial sense for investment properties?
Choosing Your Mortgage Type
Ready to explore your financing options? Book a free strategy call with LendCity and let our team help you find the right path forward.
Mortgage type selection significantly affects investment property financing costs and flexibility. Neither open nor closed mortgages are universally preferable.
Analyze your specific situation including investment timeline, refinancing expectations, and prepayment intentions. Calculate total costs under both approaches.
Professional guidance helps navigate these decisions, particularly for investment properties where strategies may differ from personal residence financing.
Disclaimer: LendCity Mortgages is a licensed mortgage brokerage. Content on this page is for educational purposes only and does not constitute legal, tax, investment, securities, or financial-planning advice. Rates, premiums, program terms, and regulations referenced are as of the page's last updated date and are subject to change. Any investment returns, rental yields, tax savings, or case-study figures shown are illustrative only — they are not guaranteed, not typical, and individual results will vary. Consult a licensed lawyer, Chartered Professional Accountant, or registered dealer before acting on any information above. Editorial standards.
Written by
LendCity
Published
July 29, 2026
Reading time
7 min read
BRRRR
Buy, Rehab, Rent, Refinance, Repeat - a real estate investment strategy where you purchase a property below market value, renovate it to increase its [ARV](/glossary/#after-repair-value-arv), rent it out, [refinance](/glossary/#refinancing) to pull out your initial investment, and repeat the process with the recovered capital. Success depends on [forced appreciation](/glossary/#forced-appreciation) and strong [cash flow](/glossary/#cash-flow).
Cash Flow
The money left over after collecting rent and paying all expenses including mortgage, taxes, insurance, maintenance, and property management. Positive cash flow is the primary goal of buy-and-hold investors. See also [NOI](/glossary/#noi), [Cash-on-Cash Return](/glossary/#cash-on-cash-return), and [Vacancy Rate](/glossary/#vacancy-rate).
Closed Mortgage
A mortgage with restrictions on how much extra you can pay during the term, typically limited to 10-20% of the original balance per year. Prepaying beyond the allowed amount triggers a penalty (usually three months' interest or the interest rate differential). Closed mortgages offer lower rates than open mortgages in exchange for less flexibility.
Convertible Mortgage
A short-term mortgage (usually 6 months or 1 year) that can be converted to a longer fixed-rate term at any time without penalty. Useful when you expect rates to drop and want to lock in later, or when you need short-term flexibility before committing to a longer term.
Interest Rate
The cost of borrowing money, expressed as a percentage. It determines how much you pay on top of the principal borrowed. Interest rates directly affect monthly payments, [cash flow](/glossary/#cash-flow), and [DSCR](/glossary/#dscr). See also [Amortization](/glossary/#amortization).
IRD
Interest Rate Differential - a mortgage penalty calculation based on the difference between your rate and current rates for the remaining term.
Mortgage Broker
A licensed professional who shops multiple lenders to find the best mortgage rates and terms for borrowers. Unlike banks, brokers have access to dozens of lending options.
Mortgage Term
The length of time your mortgage contract and interest rate are in effect. Typically ranges from 1 to 5 years in Canada, after which you renew or refinance.
Open Mortgage
A mortgage that can be paid off in full or in part at any time without penalty. Open mortgages carry higher interest rates than closed mortgages to compensate for this flexibility. They're useful for borrowers who expect to sell soon, receive a lump sum, or refinance in the near term.
Real Estate Agent
A licensed professional who represents buyers or sellers in real estate transactions, providing market expertise, negotiation skills, and access to the MLS. Working with an investor-friendly agent who understands rental property analysis and financing strategies can significantly impact deal quality.
Hover over terms to see definitions. View the full glossary for all terms.