If a new loan covers only part of your card debt, compare the new loan plus every residual card balance and payment. Paying the highest-rate balance first and eliminating the largest required payment can lead to different results. A partially funded consolidation can increase the immediate monthly payment even when its note rate is lower.
When is a partial-payoff comparison needed?
Use it when an offer’s net proceeds are smaller than the total dated creditor payoff amounts, or when you deliberately leave some balances outside the transaction. The multiple-card consolidation guide covers the broader planning process. This resource addresses the narrower allocation decision: which balances get the limited cash, what is still owed afterward, and what the combined path costs.
No provider availability or approval amount is assumed. Do not accept insufficient funds merely because a model can distribute them. A lower payment goal and a lower total-cost goal may conflict.
What is the common starting point?
| Card | Balance | Annual rate / fee-free APR assumption | Fixed monthly payment | Payoff month | Future repayment |
|---|---|---|---|---|---|
| A | $3,000.00 | 29.00% | $120.00 | 39 | $4,657.46 |
| B | $4,000.00 | 24.00% | $160.00 | 36 | $5,600.45 |
| C | $3,000.00 | 18.00% | $120.00 | 32 | $3,788.38 |
Keeping the stated individual fixed-dollar payments costs $14,046.29 from the decision date, initially $400 monthly. Now assume a different offer supplies only $5,000 cash, at 15% annual note interest over 36 equal monthly periods, with a 5% fee withheld from gross principal. It starts at $5,263.16 principal, including a $263.16 financed fee; its payment is $182.45. The modeled annualized monthly cash-flow rate is 18.67%. No extra funds are assumed available.
Which allocation changes cost and which changes immediate payment?
| Policy | Pay A / B / C | Balances left A / B / C | Initial residual card payments | New loan payment | Combined initial payment | Loan plus residual future repayment | Difference vs no consolidation |
|---|---|---|---|---|---|---|---|
| Highest rate first | $3,000.00 / $2,000.00 / $0.00 | $0.00 / $2,000.00 / $3,000.00 | $280.00 | $182.45 | $462.45 | $12,681.34 | $-1,364.95 |
| Clear largest fixed payment first | $1,000.00 / $4,000.00 / $0.00 | $2,000.00 / $0.00 / $3,000.00 | $240.00 | $182.45 | $422.45 | $12,947.25 | $-1,099.03 |
The highest-rate-first row pays off A and reduces B. The other row pays off B, which has the largest fixed monthly payment in this example, then reduces A. For any partially paid card, the model keeps its original dollar payment until payoff. Only a fully paid card’s assumed payment disappears immediately. Both rows add the same new loan payment. Actual creditors may change required payments after partial payoff; obtain that information before using these cash-flow figures.
Can a lower-rate partial loan still cost more?
| Allocation policy | Annual note rate | New term | New loan payment | Total loan plus residual repayment | Difference vs keeping current plan |
|---|---|---|---|---|---|
| Highest rate first | 15.00% | 36 | $182.45 | $12,681.34 | $-1,364.95 |
| Highest rate first | 15.00% | 60 | $125.21 | $13,625.78 | $-420.51 |
| Highest rate first | 22.00% | 36 | $201.00 | $13,349.25 | $-697.03 |
| Highest rate first | 22.00% | 60 | $145.36 | $14,834.93 | $788.64 |
| Clear largest fixed payment first | 15.00% | 36 | $182.45 | $12,947.25 | $-1,099.03 |
| Clear largest fixed payment first | 15.00% | 60 | $125.21 | $13,891.70 | $-154.59 |
| Clear largest fixed payment first | 22.00% | 36 | $201.00 | $13,615.17 | $-431.11 |
| Clear largest fixed payment first | 22.00% | 60 | $145.36 | $15,100.85 | $1,054.56 |
A positive difference means more nominal future dollars. Lower initial payments may be bought by more months of interest. The table compares full remaining cash flows, not just the accounts paid off. It does not assume freed payments roll to other accounts, that the balance-weighted rate is an accurate payoff model, or that the lowest-cost policy is affordable.
How do you reproduce the allocation and remaining cost?
First allocate exactly the available net cash; no allocation may exceed the account balance. Subtract those amounts from each balance. Independently amortize each positive residual with its own rate and stated fixed-dollar payment, stopping at the smaller final installment. Calculate the new loan on gross principal 5000/(1-0.05). Add all residual payments and all new-loan payments, then subtract the original no-consolidation future repayment. The fee is already inside the new principal; do not add it a second time.
Download the 44-row scenario CSV, inputs, schedules and results in JSON, or standalone Python calculation code. Version 1.0.0 contains 36 full-payoff scenarios and eight partial-payoff scenarios. Run python model.py --output results with Python 3 and its standard library. These are invented calculations, not a survey, current rates, available offers or observed consumer outcomes.
The card examples use a fixed annual rate divided by 12, interest before each monthly payment, constant dollar payments and a smaller final payment. A finished card payment is not redirected to another account. There are no new purchases, late fees, annual fees, promotions, rate changes or daily-accrual differences. These assumptions are not a prediction of actual card minimums. Replacement loans use equal monthly periods, a fixed note rate and the stated fee withheld from gross principal; no other charges. Carry full precision and round only for display; actual final installments and disclosed APR can differ.
Why is this different from a single-balance savings estimate?
A single current rate can hide which card survives, which payment is eliminated and when each balance ends. A calculator result that omits residual cards can show false savings. The full-payoff calculation guide solves a different starting condition: enough net cash to clear all selected debts. The utilization snapshots track balance location rather than savings.
What should you check before choosing a partial payoff?
- Match actual net proceeds to dated payoff quotes and confirm who sends each payment.
- Ask how each remaining creditor’s required payment changes, including residual interest.
- Count all overlap and new-loan payments until payoff is confirmed.
- Check a take-home budget and the risk of rebuilding paid-off balances.
- Compare assistance, a self-directed payoff plan and counseling if the combined payment is still unmanageable.
The CFPB consolidation guidance supports evaluating costs, spending and alternatives; it does not endorse these invented allocation policies. No page here guarantees a loan, savings or a credit-score result.
Sources supporting this explanation
Sources checked 2026-10-30. Examples are hypothetical BYL calculations or planning worksheets;they are not observed lender prices,offers or approval criteria.