The rate conversation is easy. It is the number everyone leads with, the thing you shop around, the figure that gets plugged into a monthly payment calculator at midnight. What does not get nearly as much airtime are the costs sitting underneath that rate — the ones that show up near the finish line when the deal is already in motion and backing out feels complicated.
Closing costs on a second mortgage are not one thing. They are several things, from different places, for different reasons, landing roughly around the same time. Some are flat fees. Some scale with the loan. Some depend entirely on which type of lender you ended up with. And if you have not asked about them until closing day, that conversation will be a stressful one.
Here is what is actually in that pile of charges, and what you should know about each one before you get there.
Appraisal: Paying for a Number You Cannot Control
Every lender putting money against your property wants to know what it is worth today. Not roughly. Not based on what you paid for it. They want a licensed appraiser to physically assess the home and produce a report with a defensible valuation, and they want it before they finalize anything.
That process costs money, and you are the one covering it. For most residential properties in Canada, an appraisal runs somewhere in the $300 to $500 range, though unusual properties, rural locations, and larger homes can push that higher. The part that stings a little is that this fee is generally due before the loan closes and is non-refundable if the deal falls apart for any reason. You are paying for the professional’s time, not the outcome, so factor it in as a real sunk cost from the moment you start the process.
Legal Fees: This Part Is Not Optional
A second mortgage has to be formally registered as a charge on your property. That registration is a legal process. It requires a real estate lawyer, and the lawyer charges for their time — the document review, the title search, the registration itself, and any correspondence with the lender’s legal team along the way.
What you pay depends on the lawyer and the complexity of the transaction, but $800 to $1,500 is a fair working estimate for a reasonably straightforward deal. One thing people sometimes miss: if the lender has their own solicitor handling their side of the transaction, there can be a portion of those costs passed to you as well. It is not universal, but it happens often enough that asking about it upfront is worth three seconds of your time.
Lender Fees: Where the Type of Lender Really Matters
Banks tend to keep their administrative fees low, sometimes folding them into the rate itself so they barely register as a separate line item. Private lenders work differently, and this is where a lot of borrowers feel the gap most sharply.
In private lending, a lender fee of 1% to 3% of the loan amount is standard practice. On a $150,000 second mortgage, that is between $1,500 and $4,500 in fees before anything else is counted. That does not make private lenders the wrong choice. For borrowers who do not qualify through traditional channels, they are often the only viable path. But the fee structure changes the real cost of the loan considerably, and that comparison deserves to be made with full numbers on the table rather than just the headline rate.
Broker Fees: Know Who Is Paying Them
A lot of second mortgage borrowers work with a mortgage broker, and for good reason. Brokers have relationships across a wider lending network than most individuals could navigate on their own, and for a second mortgage specifically, where lender appetite and qualifying criteria vary significantly, that reach is valuable.
How the broker gets paid, though, is something you need to understand clearly before the deal moves forward. In some arrangements, the lender pays the broker a finder’s fee and nothing comes out of your pocket directly. In private lending situations, it is common for the borrower to pay the broker’s fee, which typically runs 1% to 2% of the loan amount. Both arrangements are normal. Neither is inherently better or worse. But you should know which one you are in before you sign, not after. Ask directly. It is a fair question and the answer should be immediate.
Title Insurance: Small Cost, Real Protection
Title insurance is a one-time premium that covers both you and the lender against issues with ownership that might not surface until after the transaction closes. Previous liens that were not caught, registration errors, title fraud, competing claims from prior owners. These are not everyday occurrences, but when they do happen, resolving them is expensive and time-consuming.
For a residential property, title insurance typically runs $150 to $350. Some lenders require it as a condition of the loan. Others leave the decision to you. Given the cost relative to what it protects against, it is one of those cases where saving a couple hundred dollars upfront can look pretty shortsighted in hindsight.
Administration Fees from Your First Mortgage Lender
Adding a second mortgage means registering a new charge behind your existing one, and your current first mortgage lender may charge an administrative fee to acknowledge or adjust for that. Not all lenders do this. Enough of them do that checking in advance is worth a quick phone call.
The fees are not large, generally somewhere between $200 and $400, but they come from an institution you are already dealing with and do not always make it onto anyone’s mental checklist. Add it to yours.
Prepayment Penalties: The Expensive One to Spot Early
If any part of your second mortgage arrangement involves paying out or restructuring your existing first mortgage, you need to look at prepayment penalties before you go any further. This is not a closing cost that applies to everyone, but for the borrowers it does affect, it can be the biggest number on the entire list.
Fixed-rate mortgages in Canada calculate penalties using an interest rate differential, and the math can produce some genuinely uncomfortable results depending on how far you are from your renewal date and where current rates sit relative to your original contract. Get a formal payout statement from your first mortgage lender before you commit to anything. It takes a few days to arrive and costs nothing to request. What you find out may change your timing or your approach entirely.
Adding It All Up
Closing costs on a second mortgage in Canada generally fall somewhere between 1.5% and 4% of the loan amount in total. On a $100,000 loan, that is $1,500 to $4,000. On $200,000, you could be looking at $3,000 to $8,000 depending on how the deal is structured and who is involved.
The spread is real and it matters. Two borrowers with the same loan amount can end up with very different closing cost totals based purely on lender type and deal structure. The only way to actually compare options is to get itemized estimates in writing from each lender you are considering. A rate quoted without a full fee breakdown is an incomplete picture, and making decisions from incomplete pictures is how borrowers end up surprised at the worst possible moment.
Before You Sign
Some of these costs can be rolled into the loan rather than paid out of pocket at closing. Many borrowers do exactly that, and it is a practical solution when cash is tight. Just be clear on what it means: those rolled-in fees accrue interest for the entire loan term, so the real cost is higher than the face value of the fees themselves. Run the numbers both ways and make the choice deliberately rather than by default.
The interest rate on a second mortgage is worth comparing carefully. So is everything else on this list. The borrowers who come out of this process feeling good about their decision are usually the ones who looked at the full cost of the loan from the start — not just the monthly payment — and chose accordingly.
