Debt Consolidation Loans: When They Work and When They Backfire
By Jordan Ellis · Published · Reviewed
Quick Answer
A debt consolidation loan pays off your existing debts with one new fixed-rate loan. It works when the new APR (including fees) is clearly below your current weighted-average rate — consolidating 24% credit cards into a 12% loan can halve your interest and set a guaranteed payoff date. It backfires when you run the cards back up afterward.
The mechanics
You take out one personal loan sized to cover your existing balances. The lender pays you (or in some cases pays your creditors directly), your cards go to zero, and you owe one fixed monthly payment for 2–7 years. Nothing is forgiven — you’ve restructured, not reduced.
The math that decides
Add up your current weighted-average rate. Example: $14,000 across three cards at 22–26% APR, paying $420/month in minimums, takes about 4.5 years and ~$7,800 in interest.
Consolidate into a $14,000 loan at 12% for 4 years:
| Cards (minimums) | Consolidation loan | |
|---|---|---|
| Monthly payment | $420 (shrinking) | $369 (fixed) |
| Payoff time | ~4.5 years | 4 years exactly |
| Total interest | ~$7,800 | ~$3,700 |
Savings: roughly $4,100 plus a guaranteed end date. Check your own numbers with the personal loan calculator — and include the origination fee in your comparison, since a 5% fee quietly eats a year of savings.
When consolidation works
- New APR is at least 5+ points below your weighted-average card rate.
- The fixed payment fits your budget with breathing room.
- You’re consolidating to kill the debt, not to free up the cards for more spending.
When it backfires
- The re-run-up. The consolidated cards sit at zero, tempting. Run them back up and you now carry the loan and fresh card debt — the classic route to double debt. Studies of consolidators find re-accumulation is common; the loan treats a symptom.
- Stretching the term. Rolling 3 years of remaining card payments into a 7-year loan can cost more total interest despite the lower rate. Shorter terms save more.
- Fee blindness. An 8% origination fee on a marginal rate spread turns a “rescue” into a wash.
Alternatives worth pricing first
- 0% balance transfer card — often cheaper for debts you can clear within the promo window, typically 6–12 months in Canada. See our balance transfer guide.
- Non-profit credit counselling (debt management plan) — agencies such as members of Credit Counselling Canada roll payments into one, and creditors often reduce or waive interest, without a new loan.
- The DIY avalanche — if your budget has margin, the debt payoff calculator may show you don’t need a new loan at all.
The bottom line
Consolidation is a rate arbitrage plus a discipline device. If the APR math saves real money and you commit to frozen cards, it’s one of the fastest ways to convert chaotic revolving debt into a finite, finishable project. If the math is marginal, fix the behavior first — no loan can do that part for you.
Official sources
Rules and dollar limits change. Confirm current amounts with the official pages below before you act · Last reviewed .
- Loans and lines of credit (Financial Consumer Agency of Canada)
- Understanding debt (Financial Consumer Agency of Canada)