There is no option that is best for everyone. A second mortgage, a refinance, a HELOC, a B-lender mortgage and a private first mortgage each suit different circumstances. The right choice depends on your existing rate, any prepayment penalty, how much you need, how long you need it, and how you plan to exit.
The five main routes at a glance
| Second mortgage | Refinance | HELOC | B-lender | Private first | |
|---|---|---|---|---|---|
| First mortgage | Stays | Replaced | Stays | Replaced | Replaced |
| Qualification focus | Equity & property | Income & credit | Income & credit | Flexible income | Property & equity |
| Relative cost | Higher | Lowest | Low | Moderate | Higher |
| Typical term | Short | Longer | Revolving | 1–2 years | Short |
| Penalty on existing | None | Usually | None | Usually | Usually |
| Exit plan needed | Yes | Less critical | Less critical | Yes | Yes |
| Main risk | Cost; renewal not guaranteed | Losing a good rate; penalty | Rate can move; can be reduced | Requalifying later | Cost; short term |
When each tends to make sense
A second mortgage
Generally worth considering when your first mortgage carries a rate meaningfully below today’s market, the penalty to break it would be significant, and you need funds for a defined period with a clear exit. You pay more on the new funds, but you protect the larger balance.
Refinancing
Generally the cheaper route when your existing rate is close to current market, the penalty is modest, or the amount you need is large relative to your existing balance. One mortgage, one payment, and generally the lowest cost of the routes on this page, where you qualify.
A HELOC
Suits ongoing or uncertain needs where you draw as required and pay interest only on what you use. Requires full qualification, the rate is typically variable, and a lender may reduce or freeze the limit. Less suited to a large one-time consolidation.
A B-lender mortgage
Sits between mainstream and private lending. More flexible on income documentation and credit than an A lender, at a moderate premium. Often the natural next step for someone exiting private financing.
A private first mortgage
Used when the existing first mortgage needs to be replaced but mainstream qualification isn’t currently available — for example with arrears, an unusual property, or income that can’t yet be documented. Short-term by design, and it needs a defined exit.
The comparison worth doing
For each realistic option, work out: the monthly payment, the total dollar cost over the period you expect to hold it, the fees involved, what happens at your next renewal, and what the exit looks like. Put them side by side. The answer is usually clear once the numbers are on one page — and it is often not the option that looked obvious at the outset.
Also worth considering
- Waiting until renewal — if maturity is near, the penalty disappears. Sometimes the cheapest option of all.
- An unsecured consolidation loan — higher rate, but it does not put your home at risk.
- Doing nothing for now — a legitimate answer if the numbers don’t justify acting yet.
- Independent insolvency or credit counselling advice — where debt levels warrant it, this should be explored before borrowing further against the home.
A second mortgage is one tool among several. It should never be presented as the only option, and it isn’t presented that way here.
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647-291-7116This page is general education about mortgage options in Ontario. It is not legal, accounting, tax or insolvency advice, and it is not an offer of credit. Please seek independent professional advice for your own situation.