Debt Consolidation Loan: Does It Really Save Money?
A debt consolidation loan sounds like a magic trick. You take out one personal loan, pay off all your credit cards, and now you have a single payment instead of five. But does it actually save you money, or does it just move the debt around and make the pile look tidier?
Brian walks through it on video.
The honest answer: it depends entirely on two numbers — the interest rate gap and the fee. When the gap is wide, consolidation saves real money. When it's narrow, you've just reshuffled the deck and paid someone a fee for the privilege. Here's how to tell the difference before you sign.
What a debt consolidation loan actually is
It's a personal loan. You borrow a lump sum, the lender either deposits it in your account or sends it directly to your credit card companies, and your card balances go to zero. From that day forward you owe the lender instead of the card issuers.
The key difference isn't the number of payments. It's the structure.
Revolving debt vs. installment debt
Credit cards are revolving debt. You can use them, pay them down, use them again. There's no built-in end date. Your minimum payment shrinks as the balance shrinks, which is exactly why a card balance can follow you around for the better part of a decade.
A personal loan is installment debt. Fixed amount, fixed rate, fixed term, fixed payment. Sixty months at $500 means sixty months at $500 and then you're done. That certainty is worth something on its own, separate from the interest savings.
The credit score angle
Your credit utilization rate is the percentage of your available credit you're currently using. Two cards with $10,000 limits each give you $20,000 of available credit. Carry $10,000 and you're at 50% utilization. Carry $2,000 and you're at 10%. Lower is better.
When a consolidation loan pays those cards off, your utilization drops to 0%. The loan itself gets reported in a different category — installment debt — where the balance doesn't count against utilization the same way. Pay it on time and it more than likely helps your score.
The catch: those cards are now empty and available. If you run them back up, you've doubled your debt instead of consolidating it.
The real math on $15,000 of credit card debt
Let's use simple numbers. Say you have two cards:
| Debt | Balance | Monthly payment | Rate |
|---|---|---|---|
| Card 1 | $10,000 | $250 | 24.24% |
| Card 2 | $5,000 | $100 | 24.24% |
| Total | $15,000 | $350 |
That 24.24% rate was the credit card average as of March 2024. It's not a worst case — it's the middle of the road.
Option A: keep paying the cards
Make those payments, let them shrink as the balances shrink, and it takes 8 years and 5 months to clear $15,000. Total interest: roughly $20,140. Total out of pocket: about $35,000 on a $15,000 debt.
Read that again. You pay more in interest than you originally borrowed.
Option B: consolidate with a personal loan
With a good credit score — not excellent, not poor — a reasonable personal loan rate in that same window was 15.86%. A $15,000 loan at that rate over five years runs about $364 a month.
That's $14 more than you're already paying. Fourteen dollars.
Total interest over those five years: roughly $6,800.
The comparison
| Keep the cards | Consolidation loan | |
|---|---|---|
| Monthly payment | $350 (shrinking) | $364 (fixed) |
| Time to debt-free | 8 years 5 months | 5 years |
| Total interest | ~$20,140 | ~$6,800 |
The interest savings land around $13,200, and you're out of debt three and a half years sooner.
People look at 24% versus 16% and shrug. "That's only eight points." On $15,000 over eight years, those eight points are worth more than $13,000. Interest rates compound, and the gap compounds with them.
Don't forget the origination fee
Most personal loans charge a fee to originate the loan. It typically ranges from 1% to 10% of the amount borrowed. At 5% on a $15,000 loan, that's $750 added to what you owe.
You have to put that fee in your math. A 10% fee on a loan that only saves you two percentage points of interest can wipe out the entire benefit. A 1% fee on a loan that cuts your rate in half barely registers.
Here's the simple test:
- Calculate total interest if you keep paying the cards as-is.
- Calculate total interest on the consolidation loan.
- Add the origination fee to the loan side.
- If side two is still meaningfully lower, consolidation wins.
Run both sides with a credit card payoff calculator so you're comparing actual dollars, not vibes.
When consolidation is the wrong move
When the rate gap is small
If your cards are at 18% and the best personal loan you can get is 17%, there's almost nothing there — and the fee will eat what little savings exist. In that case you're better off throwing extra money at the highest-rate balance. The debt avalanche calculator shows what that looks like.
When you'd stretch the term way out
A lower rate over a much longer term can cost more in total interest, even though the monthly payment feels better. Always compare total interest paid, not just the payment.
When the cards go right back up
This is the one that gets people. Consolidation only works if those zeroed-out cards stay at zero. If spending is the underlying problem, a loan doesn't fix it — it funds it. Fixing the cash flow comes first, and temporarily cutting expenses is usually where that starts.
Other ways to get a lower rate
A personal loan isn't the only option for refinancing expensive debt. A 0% balance transfer card can beat it outright if you can clear the balance during the promo window. Borrowing against an asset you already own — like a car refinance — can sometimes get you an even lower rate than an unsecured personal loan. And if the rate gap is thin, simply paying more than the minimum every month does a surprising amount of work with zero fees and zero applications.
How to shop for your rate
Before you apply anywhere:
- Know your credit score. Find it out before you make a single call. It sets your expectations and keeps a lender from telling you a story.
- Call around. Tell each lender your score and ask what rate you'd generally qualify for. You can usually get a ballpark before anyone pulls your credit.
- Ask about the fee. Get the origination fee percentage in the same conversation as the rate. A low rate with a 10% fee isn't a low rate.
- Run the best offer through the math. Only then decide.
- Have funds sent straight to the cards. Most lenders will disburse directly to your creditors. Take that option — money that touches your checking account has a way of getting spent.
The bottom line
A debt consolidation loan isn't a gimmick and it isn't a cure. It's a rate swap. When you're paying 24% and you can borrow at 16%, that swap is worth thousands of dollars and years of your life — about $13,200 and three and a half years in the example above. When the gap is small or the fee is fat, it's not worth the paperwork.
Pull your balances, find your score, make a few calls, and run the numbers both ways. Fifteen minutes with a calculator will tell you more than any sales pitch. If you want help building the whole plan, start with making a debt payoff plan that actually works, or browse all the free calculators and pick the one that matches your debt.
More on this topic: Debt Consolidation: How It Works, Your Options and When It Helps