Mortgages · Lender review
National Bank mortgage review
Quebec’s home-field bank with a genuinely clever readvanceable (the All-In-One) — wrapped in the least friendly structural terms of the Big 6: collateral charges on everything, a use-it-or-lose-it 10% prepayment allowance, no skip-a-payment, and posted-rate penalty math with a twist on both branches.
Best for: Quebec borrowers and All-In-One users who bank where they borrow
Pros
- All-In-One readvanceable HELOC is a flexible flagship — repaid principal re-available automatically
- Capped-rate 5-year variable limits how far prime can take your rate, with free conversion to fixed
- IRD branch adds only one month’s interest, capped at $500, on top of the differential
- Deepest branch and advisory presence in Quebec of any big bank
Cons
- Collateral charge on every mortgage — switching lenders later means discharge and re-registration costs
- 10% prepayment room per calendar year is forfeited entirely if you exceed it
- Three-months’-interest penalty is computed at the POSTED rate, not your contract rate
- No skip-a-payment option, and portability is replaced by refund programs that are “subject to change”
The structural fine print
National Bank states plainly that the collateral mortgage is the type used at National Bank — every mortgage, registrable up to 100% of the property’s value. That has upsides (easy re-borrowing without new registration) and one big downside: a collateral charge can’t be transferred to another lender, so leaving at renewal means paying to discharge and re-register. Combined with the absence of a conventional port — NBC instead offers penalty-refund programs it labels “subject to change” — the design quietly favours staying put.
The prepayment allowance has its own trap: 10% of initial principal per calendar year, forfeited entirely if you go over. Prepay 11% and the whole privilege vanishes for that year — the only Big 6 fine print of its kind in our research.
The penalty math
NBC’s formula is posted-family with quirks on both branches. The three-months’-interest branch is computed at the posted rate rather than your contract rate — worse than peers. The IRD branch compares original posted against current posted for the remaining term, then adds one month’s interest capped at $500 — a small mercy no other big bank offers.
Net effect: small breaks can cost more here than elsewhere (the posted three-month calc), while deep-IRD breaks can cost slightly less (the $500 cap on the add-on). Run both branches in the penalty calculator before assuming either way.
The All-In-One, and who NBC fits
The All-In-One is NBC’s best product: a readvanceable line up to 65% loan-to-value (80% combined with the loan portion) where every principal payment re-opens borrowing room automatically — effectively your mortgage, chequing and credit line in one structure, for a $7/month fee. For disciplined users — renovators, business owners smoothing cash flow, Smith Manoeuvre investors — it’s the genuine article.
The capped-rate variable is also distinctive: payments float with prime, but a ceiling limits how far the rate can rise during the term, with free conversion to fixed. In Quebec, where NBC’s branch network and French-first service are unmatched among the Big 6, the whole package makes more sense than it does in Vancouver.
Frequently asked questions
How does National Bank calculate mortgage penalties?
Posted-vs-posted differential plus one month’s interest (capped at $500) — or three months’ interest computed at the POSTED rate, whichever is higher. Posted-family math with unusual quirks on both sides. For a closed fixed mortgage the charge is the greater of three months' interest or the IRD; variables are typically three months' interest. Run your numbers in our penalty calculator, and remember only the lender's own payout statement is binding.
How much can I prepay at National Bank without a penalty?
Lump sums up to 10% per calendar year — forfeited entirely if exceeded of the original principal per year, plus a payment increase of up to One extra regular payment per payment date (double-up). Privileges reset annually and generally don't carry forward — and using them just before breaking a mortgage shrinks the balance the penalty is computed on.
Does National Bank offer a HELOC or readvanceable mortgage?
All-In-One — readvanceable HELOC, $7/month fee. HELOCs at federally regulated lenders are stress-tested like mortgages and capped at 65% of home value within an 80% total — the mechanics (and the retiree angle) are in our HELOC guide.
Is a mortgage from National Bank safe?
Borrowing carries no deposit-style risk — if a lender fails, your mortgage continues on its terms with a new owner; you never owe it back early. What matters is the contract: penalty method, prepayment room, and portability. That's exactly what this review scores.
The bottom line
Choose National Bank for the All-In-One or for Quebec depth — with eyes open about the collateral-everything registration, the use-it-or-lose-it prepayment rule and the posted-rate penalty quirks. Rate-first shoppers outside Quebec will usually do better on the rate table.
See how National Bank prices today
Benchmarks and verified lender offers, refreshed from the source.
Educational review, not financial advice or a mortgage offer. Product facts verified at National Bank's own pages and disclosures on June 12, 2026; rates shown come from our daily pipeline (scraped or hand-verified at the lender, stamped per row) and change without notice. Penalty wording summarizes the lender's published method — the payout statement is the only binding figure.