Mortgages · Lender review
BMO mortgage review
Big prepayment numbers (20% and 20%) and the longest big-bank rate hold at 130 days — but the advertised star product is the trap to understand: the cheap “Smart Fixed” rate halves your privileges and blocks full payout for five years unless you sell the house.
Best for: Borrowers taking the standard (non-Smart) products who want room to prepay and a long rate hold
Pros
- 20% annual prepayment room + 20% payment increase on standard mortgages
- 130-day rate hold — the longest among the big banks
- Homeowner ReadiLine auto-readvances up to 65% as you pay down
- Standard charge terms published for regular mortgages
- Cashback offers up to $5,000 (terms and clawbacks apply)
Cons
- Smart Fixed — the advertised special — cuts privileges to 10/10 and blocks full payout for 5 years except a bona fide sale
- Posted-minus-discount IRD, with a sharp edge: between terms, the HIGHER posted rate is used
- Fixed-payment variable with forced-increase dynamics
- Disclosure depth is thin — several product details live only in PDFs
Read the Smart Fixed fine print first
BMO’s sharpest advertised rate — the “Smart Fixed” special that appears on rate tables including ours — buys its discount with restrictions: prepayment privileges drop to 10% and 10% (from BMO’s standard 20/20), and full payout is prohibited for the first five years except on a bona fide arm’s-length sale of the property. That’s the same lockout structure we flagged at alternative lenders — on a big-bank flagship. You cannot refinance away mid-term at any penalty; the exits are selling or waiting.
For a stable household certain to stay put, the discount may still win. For anyone who values options, the standard fixed at a slightly higher rate is the better contract.
The standard products are better than the special
BMO’s regular prepayment schedule is generous: total prepayments up to 20% of the original amount per calendar year (minimum $100) plus a 20% payment increase once per year — numbers only Tangerine clearly beats. The 130-day rate hold is the longest of the big banks, and regular mortgages sit on published standard charge terms.
The penalty formula is the familiar posted-minus-discount IRD with one BMO-specific edge: when your remaining term falls between posted terms, BMO uses the higher posted rate — marginally worsening the comparison. The variable is fixed-payment style, and the ReadiLine readvances automatically up to 65% of home value.
Frequently asked questions
How does BMO calculate mortgage penalties?
Posted-rate IRD per BMO’s prepayment PDF: the posted rate for the closest remaining term minus your original discount — and when the remaining months fall between terms, the HIGHER posted rate is used. 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 BMO without a penalty?
Lump sums up to 20% of original amount per calendar year (min $100) — Smart Fixed: only 10% of the original principal per year, plus a payment increase of up to Up to 20% once per calendar year — Smart Fixed: only 10%. 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 BMO offer a HELOC or readvanceable mortgage?
Homeowner ReadiLine — auto-readvancing line to 65%, instalment portion to 80%. 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 BMO 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
BMO rewards reading the paperwork: the standard products carry the best big-bank prepayment room after TD, while the advertised special quietly trades your exit rights for basis points. Decide which contract you’re actually being offered, then compare it on the rate table.
See how BMO prices today
Benchmarks and verified lender offers, refreshed from the source.
Educational review, not financial advice or a mortgage offer. Product facts verified at BMO'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.