When a refinance to consolidate debt is worth it

A mortgage refinance used for debt consolidation replaces several unsecured payments with one larger loan secured by the home. The single payment is often lower than the old stack of minimums. That is not proof the household will pay less interest, and it is not proof the file clears the stress test. The tradeoff holds when the interest you stop paying on cards and personal loans, after the penalty and closing costs, exceeds the cost of stretching those balances over a long amortization, and when the same cards are not filled again.

What a refinance actually changes

A refinance ends the current mortgage and starts a new one for a higher amount. The extra proceeds pay off credit cards, a personal loan or an unsecured line of credit. The debt does not vanish. It changes shape: a short, unsecured obligation becomes a charge on title, repaid over years.

The Financial Consumer Agency of Canada describes consolidation as combining several debts into one payment. It also notes that a longer repayment period can cost more interest over time, and that the spending that built the balances can rebuild them.

The home is the collateral. The agency is blunt about the bargain: the rate is often lower than on unsecured credit, and a failure to repay can lead to foreclosure. A lower payment usually comes from three levers at once: a rate below what the cards charge, a longer amortization, and the removal of revolving minimums. Only the first is an interest saving. The other two move principal into the future.

The 80% cap and the stress test

You do not borrow every dollar of equity. The federal agency says you may usually borrow up to 80% of the home's value, including the current mortgage. On a $250,000 property with a $150,000 balance, the ceiling is $200,000, so $50,000 of room. The appraisal, not the purchase price from a decade ago, sets that ceiling. An optimistic listing price shrinks what a lender will actually fund.

A home equity line of credit is capped at 65% of the home's value. If the first mortgage already sits near that line, the HELOC absorbs almost nothing. Refinancing up to 80% is then the only equity product with enough room.

A refinance is not a renewal. The federal agency says that if you already have a mortgage, you have to pass the stress test to refinance or to take out a HELOC. Banks use the higher of 5.25% and the negotiated rate plus 2%. Tested housing costs should not exceed 39% of gross income, and total debts 44%. Our article on the mortgage stress test walks through that rate choice. For consolidation, the distinctive lever is how non-housing debts are counted.

CMHC uses at least 3% of an outstanding card or unsecured line, not the minimum showing on the statement. A $22,000 card balance then counts as $660 a month in TDS. Once those balances are folded into the mortgage, they leave that column. Ratios can therefore pass after the refinance when they failed before, even though the loan is larger. The opposite also happens: the new payment at the qualifying rate, plus tax and heat, can still sit above 44% if income is tight.

A worked example: the payment falls, the lifetime cost rises

Suppose a household earns $96,000 a year before tax, or $8,000 a month. The home appraises at $450,000. The mortgage balance is $290,000, with 21 years of amortization left. Property tax is $320 a month and heat is $150. Non-housing debts are $22,000 on cards, $9,000 on an unsecured line and a $14,000 personal loan at $385 a month.

Use an illustrative contract rate of 4.50%. That is not an offer, only a number to show the mechanism. The current payment would be about $1,774. Cards and the line count as $930 in TDS under the 3% rule, plus the $385 loan, so $1,315 of non-housing debt. Actual TDS sits near 44.5%. At the 6.50% qualifying rate, TDS clears 48%. The file fails the rule, even if this month's minimums are being paid.

Eighty percent of $450,000 is $360,000. That leaves $70,000 of room, enough for the $45,000 of debts. After the refinance the loan would be $335,000 over 25 years. The contract payment would be about $1,854. TDS, with the old debts gone, falls to about 29% at the real rate and about 34% at the qualifying rate. The file meets the rule. Monthly cash going to housing and those debts drops from about $3,089 to $1,854, a gap of about $1,235.

That $1,235 is not a windfall. It is a shift. The $45,000 stretched over 25 years at 4.50% would cost about $75,000 in payments, nearly $30,000 of it interest, if the household never pays extra. Over five years the same principal at that rate would cost a little more than $50,000 in total. Consolidation is worth doing if the surplus goes back into principal, not back onto the cards.

A second case, same income but a $520,000 property and a $400,000 balance, leaves only $16,000 under the 80% cap. The $45,000 does not fit. It needs fewer debts, more equity, or a different product.

Penalties, fees and a line of credit

Breaking a closed term early can trigger a penalty. The federal agency explains that a lender may charge one if you break the contract, switch lenders or pay the loan off in full. The amount is usually the higher of three months' interest and the interest-rate differential. In the agency's published example, a $200,000 balance at 6%, with 36 months left and a 4% posted rate for a comparable term, produces about $3,000 for three months' interest and $12,000 of IRD. The $12,000 is what you pay. Ask for the real figure in writing. Do not treat that example as a quote.

If the penalty eats several months of the cash-flow surplus, waiting until the term ends is often the cleaner path. A plain renewal, with no equity take-out, is a different transaction. Our guide to the renewal letter explains why you should name the deal first. Consolidation funds almost always turn a maturity date into a refinance, with a stress test and, often, an appraisal.

Appraisal, title search, title insurance and legal fees sit on top. The agency lists them among the costs of borrowing against equity. None of those amounts show up in an advertised payment. Subtract them from the surplus before you conclude that the file "saves" $1,235 a month.

A second mortgage or a standalone HELOC can avoid breaking the first loan. The rate is generally higher than on the first, and you carry two payments. A HELOC that collects interest only does not shrink the principal. It fits a balance you can repay quickly, not a debt you plan to stretch across twenty-five years.

When the math does not hold

The tradeoff fails when the penalty and fees consume the interest saving before the next maturity, or when the debts are too small to justify a new underwrite, or too large to fit under 80%. A $4,000 card balance is often cheaper to pay down than to reopen the whole mortgage.

It also fails without a plan for the cards once they read zero. Consolidation does not cancel the credit limit. If the accounts fill up again, the household carries the larger mortgage and the old debts. TDS, recalculated later, tightens.

Clearing the ratios says nothing about groceries, childcare or a month of uneven pay. A smaller payment can hide a budget that was already tight. Extending the amortization without paying off the cards costs interest twice: once on the added principal, and once on the years put back onto the original loan.

What to line up before you decide

List the balances, the rates and the actual payments, not only the minimums. Get an appraisal or start from a value the lender will accept. Take 80% of that value, subtract the mortgage, and see whether the debts fit. Then price the payment at the expected contract rate and at the qualifying rate. Compare TDS before and after, with 3% of revolving balances on one side and none on the other.

Ask for the penalty in writing, plus closing costs. Divide that total by the monthly surplus. If the payback stretches past the time left on the term, wait for maturity. Decide in advance what happens to the $1,235: a higher mortgage payment, a lump-sum prepayment, or spending. Without that rule the surplus disappears.

Close or freeze the cards once they are paid, if the budget allows, so the same TDS does not rebuild. Keep a reserve: the home is now collateral for debts that, before, never touched it.

I match the payment, the lifetime cost, the penalty and the ratios to the documents in the file, rather than to a single lower number. The point is to see whether consolidation works because the interest actually falls, or only because the principal is spread thinner. You can review a refinance to run those scenarios before you break the term. A first conversation is free and does not commit you to a lender.

Certain conditions may apply. Subject to change without notice.