Debt Consolidation Calculator
Would rolling your debts into one loan actually save money? Compare total interest both ways — with the consolidation loan's fee included.
When consolidation wins — and when it doesn't
The comparison is honest only if it includes the fee and holds the timeline steady. A lower payment is easy to manufacture with a longer term — that's not savings, that's stretching. This calculator compares total dollars, not just monthly cash flow.
$10,500 of card debt averaging ~22.6% APR, paid at $325/mo → about $4,700 interest, debt-free in ~4 years.
Consolidated at 12% over 3 years (3% fee rolled in): payment $359/mo, total cost about $2,400 — roughly $2,300 saved and a year sooner.
Same $10,500 balance, but this time the offer is a 3-year loan at 16% APR with a 5% origination fee (a realistic offer for a borrower with fair, not good, credit).
Principal rolled in: 10,500 × 1.05 = $11,025. Payment at 16%/3 yrs ≈ $387/mo; total cost over the term ≈ $13,932 − $10,500 = ≈ $3,432. That's roughly $1,270 more than the ≈ $2,163 in interest the same borrower would have paid keeping the original cards (at their $325/mo pace, closer to 4 years — the fee plus the still-fairly-high 16% rate erase the benefit entirely). The lesson: a consolidation offer only helps if the rate is meaningfully below your blended card rate, not merely different from it.
The consolidation trap to avoid
Consolidation moves debt; it doesn't erase the habits that created it. The most common failure mode: consolidate the cards, feel relief, then run the newly-empty cards back up — ending with the loan and new card debt. If you consolidate, freeze or close the paid-off cards until the loan is gone, and consider building a small emergency buffer first so surprises don't land on the cards. Compare alternatives: a 0% balance transfer (see credit card payoff), a home equity loan if you own (cheaper, riskier), or simply the avalanche method with no new loan at all.
Consolidation loan vs. other options
| Option | Typical rate | Best for |
|---|---|---|
| 0% balance transfer card | 0% for 12–21 mo, then 18%+ | Balances payable within the promo window |
| Personal consolidation loan | 8%–20%+ (credit-dependent) | Fixed payoff date, meaningfully lower than card APRs |
| Home equity loan/HELOC | 7%–11% | Homeowners with equity, comfortable using the house as collateral |
| Nonprofit debt management plan | Often reduced by the plan | Credit below ~600 or too much debt to qualify for a loan |
| No new loan (avalanche/snowball) | Existing card rates | Anyone who wants zero risk of new-account fees or a hard inquiry |
Common debt consolidation mistakes
- Comparing the new monthly payment instead of total interest. A longer term can lower the payment while actually costing more overall — as shown in the losing-money example above.
- Ignoring the origination fee when comparing rates. A 16% loan with a 5% fee rolled into the principal effectively costs more than its stated APR suggests in the first year.
- Running the paid-off cards back up. The single most common way consolidation backfires — see the trap discussed above.
Frequently asked questions
Does debt consolidation save money?
Only when the new rate (plus fee) is meaningfully below your weighted average current rate — like 22% cards into a 12% loan.
Does consolidation hurt my credit score?
Small temporary dip; often improves later as utilization drops — unless the cards get run back up.
What credit score do I need?
Approvals from ~600s, but rates that beat card APRs usually need 670+.
Is a balance transfer card better than a consolidation loan?
A 0% promo card can beat a loan if you'll pay it off before the promo ends; riskier for balances that will still be around when the rate reverts to 18%+.
What happens if I miss a payment on the new loan?
Late fees and a credit-bureau report after 30 days, same as any installment loan — which defeats the purpose of consolidating in the first place.
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Note: Simulation assumes fixed payments and monthly compounding. Actual loan offers vary by credit profile. Not financial advice. Last reviewed: September 2026.