3 Debts at a 16.4% Blended Rate, Consolidated at 11%, Saved $2,281 — Here's the Math
“Combine your payments into one” is a convenience pitch, not automatically a savings pitch. We ran the real numbers on three separate debts to see exactly when consolidation crosses from marketing appeal into genuine dollar savings.
The starting debts and their blended rate
| Debt | Balance | APR |
|---|---|---|
| Card A | $8,000 | 24% |
| Card B | $5,000 | 22% |
| Card C (older, lower-rate) | $12,000 | 9% |
| Blended (balance-weighted) | $25,000 | 16.4% |
The blended rate isn’t a simple average of 24%, 22%, and 9% (which would be 18.3%) — it’s weighted by balance, and the largest chunk ($12,000) sits at the lowest rate, pulling the true blend down to 16.4%. This is the number a consolidation offer actually has to beat.
Running the consolidation math
Roll all three into an 11% consolidation loan with a 1% ($250) origination fee, keeping the same $600/month payment:
| Keep debts (avalanche method) | Consolidate at 11% | |
|---|---|---|
| Effective rate | 16.4% blended | 11% + fee |
| Monthly payment | $600 | $600 |
| Total interest paid | Higher | Lower |
| Net savings from consolidating | ~$2,281 |
The comparison here isn’t against paying minimums on all three cards — it’s against the avalanche method, where every extra dollar above minimums attacks the highest-APR debt first. Avalanche is free and already captures a meaningful chunk of the savings most people hope a consolidation loan will provide. The loan still has to clear that higher bar, after its fee, to be genuinely worth taking.
Where the numbers flip
Push the consolidation rate from 11% up to 20% — still technically below the 24% top rate among the original debts — and the outcome flips to a net loss, even though the borrower has “simplified” to a single monthly payment. The lesson: a consolidation rate merely below your highest individual rate isn’t the right bar. It has to beat your blended rate, net of the fee, or it’s not actually saving money regardless of how much simpler the payment schedule looks.
Where this framework doesn’t apply
- Your debts are already at similar rates. If there’s little spread between your existing rates, the blended-rate math offers little room for a consolidation loan to beat — the avalanche method alone captures nearly all the achievable benefit.
- You’d take on new debt after consolidating. This model assumes no new borrowing. Consolidation followed by running the newly-freed-up credit cards back up defeats the purpose entirely and is a well-documented failure pattern.
- The loan term is much longer than your current payoff timeline. A longer-term consolidation loan can lower the monthly payment while increasing total interest paid — the same “term reset” trap that applies to mortgage refinancing. Keep the term at or below your current expected payoff timeline to protect the actual savings.
- You don’t qualify for a rate meaningfully below your blended rate. Approval and the actual offered rate depend on credit profile — a consolidation offer only slightly below the blended rate, after the fee, may not be worth the switch.
What to actually do
- List every debt with its balance and APR, then calculate your true balance-weighted blended rate — not a simple average.
- Compare any consolidation offer against that blended rate, factoring in the origination fee, not against your highest individual rate.
- Run the avalanche method as the baseline comparison, not minimum payments — it’s free and often captures most of the savings on its own.
- Match the consolidation loan’s term to your current expected payoff timeline to avoid the term-reset trap.
- If approved, close or freeze the consolidated cards’ available credit to avoid re-accumulating balances on top of the new loan.
Open the Debt Consolidation Calculator → and run your own debts against a real consolidation offer.
Quick answers
How do I know if debt consolidation will actually save me money?
Calculate your balance-weighted blended APR across all your debts first — this is what a consolidation loan's rate has to beat, after accounting for the origination fee. A consolidation loan at a rate above your blended APR is a loss even though it simplifies your payments to one.
What's a balance-weighted blended rate?
The average of your debts' interest rates, weighted by how much balance sits at each rate — not a simple average. Three debts of $8,000 at 24%, $5,000 at 22%, and $12,000 at 9% blend to 16.4%, not the simple average of the three rates (18.3%), because the largest balance sits at the lowest rate and pulls the blend down.
Should I compare consolidation against my minimum payments or against the avalanche method?
Against the avalanche method — paying minimums on everything except the highest-APR debt, which gets every extra dollar. The avalanche method is free and already captures most of the savings people hope to get from consolidating, so a consolidation loan has to beat that baseline, after its fee, to actually be worth doing.
What can make a consolidation loan a bad deal even if it simplifies payments?
A consolidation rate too close to (or above) your blended rate, combined with the origination fee. In our example, pushing the consolidation rate from 11% up to 20% flips the outcome from a $2,281 savings to a net loss — even though the borrower still ends up with the convenience of one monthly payment.