Is a Personal Loan a Good Way to Consolidate Debt? The Breakeven Math

A personal loan can be an excellent consolidation tool or an expensive way to rearrange your debt — and the difference is entirely in two numbers: the rate you get, and whether the cleared cards stay clear. Here is the math that separates the two outcomes.

For the full menu of payoff strategies, see the complete guide to getting out of debt; for a side-by-side of lenders, our best personal loans of 2026.

The only calculation that matters

Step one: compute your blended rate — the weighted average APR of the debts you would consolidate.

Say you carry:

• $6,000 on a credit card at 25%
• $4,000 on a store card at 29%
• $3,000 on another card at 22%

Blended rate = (6,000 × 0.25 + 4,000 × 0.29 + 3,000 × 0.22) ÷ 13,000 = 25.5%.

Step two: compare against the loan’s APR, including fees. Suppose you are offered a 3-year, $13,000 loan at 12% with a 4% origination fee. The fee pulls $520 off the top, so the true APR is closer to 15%. Still a 10-point gap — this loan clears the bar easily.

Step three: put dollar figures on it. Keeping $13,000 on the cards at 25.5% while paying it down over 3 years costs roughly $5,700 in interest. The loan at a true 15% costs roughly $3,100 including the fee. Net saving: about $2,600, plus a guaranteed end date.

That is a win. But flip the offer to 19% with a 6% fee — a true APR near 23% — and the “consolidation” saves almost nothing while locking you into fixed payments. The rule: consolidate only into a true APR at least 4–5 points below your blended rate.

What the loan buys besides the rate

• A fixed end date. Cards are revolving — minimum payments can stretch a balance across decades. A 3- or 5-year installment loan has a finish line that cannot move.
• One payment. Fewer due dates, fewer missed-payment risks, less cognitive load.
• A utilization reset. Paying off cards drops your credit utilization toward zero, which typically lifts your score within a few months — useful if a mortgage or auto loan is in your near future.
• Fixed rate. Card APRs float with the prime rate; the loan’s rate never moves.

The trap that undoes everything

Consolidation has a well-documented failure mode: the loan pays off the cards, the cards stay open at $0, and within two or three years they are loaded again — now alongside the loan payment. The borrower ends up with more total debt than before consolidating.

The loan did not fail; the behavior did. If you consolidate, decide in advance what happens to the cleared cards: keep one for small recurring purchases paid in full, and freeze the rest (literally, or lock them via the issuer app). Do not close them — that hurts utilization and account age — but make re-loading them hard. And fix the budget leak that created the balances, because consolidation without a surplus is just debt on layaway. Our piece on how to get out of debt fast covers the cash-flow side.

Personal loan vs balance transfer

	Personal loan	0% balance transfer card
Upfront cost	0%–8% origination fee	3%–5% transfer fee
Rate	Fixed, 8%–25%+ by credit	0% for 12–21 months, then ~25%
Best for	Larger balances, 3–5 year payoff	Smaller balances you can kill inside the promo
Discipline required	Low — fixed payment, fixed end	High — no forced payoff schedule
Trap	Origination fee; re-loaded cards	Promo expiry into high APR; new purchases may accrue interest immediately

Rough breakeven: if you can clear the balance in under ~18 months, the transfer card usually wins; beyond that, the loan’s certainty usually wins. The best debt consolidation loans of 2026 roundup covers lenders that specialize in this use case.

The bottom line

A personal loan is a good consolidation tool when three things are true: the true APR beats your blended rate by 4–5 points or more, the term is short enough that total interest actually falls, and the cleared cards stay cleared. Check all three and consolidation can save you thousands and years. Miss any one — especially the last — and you have simply refinanced your way deeper.