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Mortgage Refinance Calculator
Mortgage Refinance Calculator
Refinancing means renegotiating your existing mortgage, or taking out a new one, on a property you already own. The new terms could include a different interest rate than your current agreement, and could increase your mortgage amount (or balance) and its life (or amortization). Simply put, a refinance buys you time or money.
Another reason to refinance is changing the covenant on your property’s land title; in plain words, adding or removing someone from it.
Refinancing should improve your financial situation, whether that means accessing your home’s equity, lowering your interest-carrying costs, or consolidating debt. A covenant change makes the most sense when you’re adding or removing a family member from your home’s title, for example, adding someone to help you qualify for your current mortgage, or removing someone so they can qualify more easily on their own.
Before moving forward with a refinance, run a cost analysis with a mortgage expert to confirm it makes financial sense for your situation. The biggest cost is usually breaking your current mortgage. Why? A refinance is most affordable near the end of your current term, when there’s no penalty to pay.
Wondering how much you could save with a refinance? Use nesto’s Mortgage Refinance Calculator to see how tapping into your home’s equity could work for you.
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Today, July 29, 2026, nesto’s {term}-year {type} mortgage rate is {bps} bps ({bps_percent}) lower than the average at Canada’s Big 6 Banks. On a {mortgage_ammount} mortgage over a {amortization_period}-year amortization, with nesto, your monthly payment would be {nesto_monthly_payment}, saving you up to {monthly_savings} on your monthly payment. This equals {savings_interest} in interest saved while allowing you to pay down {extra_payment} extra on principal over your term.
What is a mortgage refinance?
Refinances can occur for many reasons. Let’s outline the top ones now:
- Extending your mortgage balance or amortization would be considered a refinance.
- A refinance would involve changing a mortgage covenant, such as adding or removing someone from the property’s land title.
- Adding a HELOC by changing the registered charge on the property would be considered a refinance.
- Combining a HELOC and mortgage that are separately mortgaged on the same property’s title but with different lenders will be considered a refinance.
- Combining two separately registered collateral charges on the same property may be considered a refinance.
- Transferring a mortgage to a prime (A) lender from an alternative (B or private) lender will be considered a refinance.
Also read: Here’s How You Can Benefit from Refinancing Your Mortgage
Best Mortgage Rates
3 Main Reasons to Refinance
Lower your borrowing costs
When interest rates are low, it might be time to re-examine your borrowing strategy. A borrowing strategy involves making a financial decision through cost analysis. Comparing the costs involved in the current scenario versus the costs involved if you go through a refinance.
These costs can include interest-carrying costs for the replacement mortgage, penalties and fees to discharge your current mortgage, and costs (i.e. legal and appraisal fees) to take on a new mortgage. Speaking to one of our commission-free mortgage experts to get specific numbers that apply to your situation will help you make this decision quickly.
Access home equity
Equity is the residual ownership of your home – meaning there is no mortgage on that portion. It’s the portion of the mortgage that you have already paid down alongside any growth in the value of your property. In the context of equity, a mortgage implies any leveraging, such as a mortgage, second mortgage, secured charge, secured loan or even a secured line of credit, against which a credit facility is secured. Your mortgage and any secured lines of credit combined can’t exceed 80% of your property’s value.
In the example below, you could leverage up to $100K in an additional mortgage, which is part of the 80% of your equity in your $500K property.
Property Value (estimated $500K) less Mortgage (balance $100K) less HELOC (balance $50K with limit $200K; note that you must use the limit amount)
= ($500K x 80%) – $100K – $200K = $100K
Additionally, HELOCs and other revolving credit facilities (as some mortgages even allow for large secured credit cards) have limitations, as their total limits cannot exceed 65% of the total property valuation.
Consolidate Debts / Increase Cash Flow
Consolidating debts with higher interest carrying costs into a single payment at a lower interest rate can be a great way to get ahead by making your home’s equity work for you. Since real estate is a very safe long-term investment, your mortgage, which is secured against it, will generally have the lowest interest rate.
Paying out higher-interest debts such as student loans, car loans, personal loans, credit cards, and lines of credit, and moving the balance over to a mortgage will generally save you money in the short term. Discuss your situation with one of our commission-free mortgage experts to validate if it will save you money over the short or long term.
Moreover, consolidating can have other side effects, such as freeing up your cash flow. This increased cash flow can be used to build your savings, save for a specific goal or purpose, pay down your mortgage faster, or put it toward your longer-term investment goals, such as contributions to your RRSPs or TFSAs.
Today’s Best Mortgage Rates as of July 29, 2026
How to use the Mortgage Refinance Calculator
Using the mortgage refinance calculator in Canada is straightforward and empowers individuals to determine their potential savings and benefits from refinancing their mortgage. Gather all the necessary information, such as the current mortgage balance, interest rate, remaining term, and any additional costs associated with refinancing. This information is key to accurately calculating the potential savings.
The calculator has three “I want to” options, and the fields you’re asked for change depending on which one you pick. All three start with the same Current property value, Mortgage balance, and Province.
- Lower my mortgage payment: Enter your Remaining amortization and Payment frequency. The calculator shows whether extending your amortization would lower your payment; for example, extending a 25-year amortization to 30 years could lower an $855 monthly payment to $782, though extending your amortization also increases the total interest you’ll pay over the life of your mortgage.
- Access my equity: Enter your Additional funds amount, the extra amount you want to borrow, along with your Remaining amortization and Payment frequency. You can refinance up to 80% of your property value, and the calculator shows you the maximum equity available based on your numbers.
- Change my amortization: Enter your Preferred amortization period and Payment frequency. The calculator shows how a longer or shorter amortization changes your interest-carrying cost, and how accelerating your payments could save you interest over the life of your mortgage.
Every option also shows your current rate near the bottom of the form, with a Change rate link if you already have a different rate in mind. Selecting Get this rate takes you to the next step with that rate; Reset form clears everything and starts over.
Once you have the necessary information, input it into the mortgage refinance calculator. Be precise in entering the data to receive an estimate of the new monthly payments, total interest savings, and the break-even point for the refinancing. The calculator provides a detailed breakdown of the potential financial impact of refinancing, ensuring you can make an informed decision based on your specific financial situation.
After using the mortgage refinance calculator, it’s important to carefully review the results to determine if refinancing is viable. Consider factors such as the length of time you plan to stay in your home, the potential savings on interest payments, and any associated costs with refinancing. By using nesto’s mortgage refinance calculator in Canada, borrowers can confidently decide whether refinancing their mortgage aligns with their financial goals.
It’s always prudent to consult nesto’s mortgage experts. Our experts can run scenarios with you, provide personalized advice, and ensure your cost savings benefit is worthwhile for your financial circumstances.
Example Refinance Calculation
For example, let’s say you have a home with a current assessed value of $200,000. You have $150,000 remaining on the mortgage, and your amortization will be 25 years after refinancing, the same numbers this page’s calculator uses by default.
Unlike a renewal or a new purchase under 20% down, a refinance doesn’t carry a CMHC default insurance premium, so the calculation starts directly from your mortgage balance. Using nesto’s current 5-year uninsured fixed rate, here’s what your new monthly payment would be.
P = $150,000, the mortgage balance being refinanced, using nesto’s current 5-year uninsured fixed rate of 4.64% and a 25-year amortization:
- P = $150,000
- i = …
- n = 300
- M = 150,000 [(…)(1 + (…))^300] / [(1 + (…))^300 – 1]
- M = 150,000 […(…)] / [… – 1]
- M = 150,000 […] / […]
- M = 150,000[…]
- M = … (rounded)
Your new monthly mortgage payment would be approximately …. Compare this against your current payment, and against the penalties and fees covered above, to see whether refinancing is worth it for your situation.
Frequently Asked Questions (FAQ) About Mortgage Refinancing
Is a HELOC or a mortgage refinance better for accessing home equity?
Both give you access to your home’s equity, but they work differently. A cash-out refinance replaces your entire mortgage with a new, larger one at a single fixed or variable rate, rolling the extra funds into one loan and one payment. A HELOC is a separate revolving credit line secured against your home, letting you borrow and repay as needed without touching your existing mortgage or its rate.
Refinancing tends to make more sense when you want a predictable payment and can get a better rate than your current one. A HELOC tends to make more sense when you need flexible, as-needed access to funds, or when breaking your current mortgage would trigger a costly penalty.
How soon can I refinance my mortgage after buying a home?
There’s no waiting period required by law, but breaking your mortgage before your term ends usually means paying a prepayment penalty, so most homeowners wait until they’re close to their renewal date or until the savings clearly outweigh that cost. If your mortgage is coming up for renewal within a few months, it’s often worth comparing a refinance against simply waiting to renew.
The exception is if your financial situation has changed significantly, for example, you need funds for an emergency or a major expense, in which case refinancing sooner and accepting the penalty can still make sense once you’ve run the numbers.
How much does it cost to refinance a mortgage?
Refinancing costs typically include a prepayment penalty to break your current mortgage, appraisal fees to confirm your home’s current value, and legal fees to register the new mortgage. If your existing mortgage is registered as a collateral charge, you may also face a discharge fee.
The penalty is usually the largest of these costs, and it depends on how much time is left in your term and whether your mortgage is fixed or variable. Getting an exact penalty quote from your current lender before you apply is the only way to know your true refinancing cost upfront.
Should I refinance or renew my mortgage?
Refinance if you need to change something beyond your rate, access home equity, extend your amortization, or consolidate debt, since a renewal keeps your mortgage balance and terms otherwise unchanged. Renew if your only goal is a new rate and term at the end of your current one, since a renewal doesn’t require breaking your mortgage or paying a penalty.
If your term isn’t ending soon and you still need funds now, refinancing is usually the only option; the penalty for breaking early is the cost of that flexibility.
Is refinancing to consolidate debt worth it?
It depends on the interest rate gap and how much you owe. Rolling high-interest debt like credit cards or personal loans into your mortgage usually lowers your overall interest costs, since mortgage rates are typically far below unsecured lending rates.
The tradeoff is that you’re repaying that debt over your mortgage’s amortization instead of a shorter personal-loan term, which can mean paying more in total interest over time even at a lower rate. Consolidating makes the most sense when it frees up cash flow you genuinely need now, not just because the rate looks better on paper.
Why Choose nesto
At nesto, our commission-free mortgage experts, certified in multiple provinces, provide exceptional advice and service that exceeds industry standards. Our mortgage experts are salaried employees who provide impartial guidance on mortgage options tailored to your needs and are evaluated based on client satisfaction and the quality of their advice. nesto aims to transform the mortgage industry by providing honest advice and competitive rates through a 100% digital, transparent, and seamless process.
nesto is on a mission to offer a positive, empowering and transparent property financing experience – simplified from start to finish.
Contact our licensed and knowledgeable mortgage experts to find your best mortgage rate in Canada.
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