Refinancing — kredi yapılandırma — means closing a running loan at its outstanding balance and taking a new loan in its place, on a new term and a new rate. This tool places the two plans side by side. You can derive the payoff balance from the original loan or enter the bank’s figure, and only applicable compensation plus new fees are carried into the comparison.
What this calculator models
The transaction modelled is this: you settle today’s balance, enter early-payment compensation only when the law and contract permit it, and include any new financed fees. Those financed amounts become part of the new principal. Keeping that distinction prevents the benefit of refinancing from being overstated.
- Derives the payoff balance, or takes the one you supply.
- Checks whether early-payment compensation is applicable and within its ceiling for the selected credit type.
- Adds applicable compensation and new fees to the new principal.
- Builds the new fixed installment and a month-by-month schedule.
- Reports the monthly payment difference and the total cost difference separately.
- Gives the approximate effective annual cost of the new loan.
Where the outstanding balance comes from
The payoff-balance source field offers two routes, and the choice directly determines how much the result can be trusted.
- Derive from the original loan: you enter the original amount, the old monthly rate, the original term and how many installments you have paid. The tool rebuilds the original schedule and reads the balance from the principal amortised so far. This is an estimate: it assumes the old plan ran exactly as scheduled.
- Enter the payoff balance: you type in the current settlement figure your bank quoted. This route should be preferred.
A real settlement balance is not just the principal remaining. It contains interest accrued since your last payment, any arrears, accrued tax and fund amounts, and the bank’s own day-count convention. A derived balance cannot know any of these. If your bank has given you an official payoff figure, enter it; the derive route exists only to give you a sense of scale when you do not yet have that figure.
The derive route also produces the two extra figures the comparison needs: your estimated current installment, and the total you would still pay over the remaining term if you carried on. Those two rows are not shown when you enter the payoff balance directly, because the tool then has no knowledge of your old installment.
Compensation, fees and the new principal
For ordinary personal and consumer-vehicle credit, the tool assumes no general early-payment compensation; future interest and cost elements are reduced. Housing compensation is accepted only for a fixed-rate contract that expressly provides for it: no more than 1% of the balance with 36 or fewer months remaining, 2% above 36 months, and never more than the interest/cost reduction. No equivalent compensation applies to variable-rate housing. For commercial credit, enter only a charge shown by the contract or bank quote.
Applicable compensation and new fees are added to the new principal only when financed rather than paid out of pocket. The "applied compensation and new fees" row shows that added burden separately.
The approximate effective annual cost row measures the new payment stream against the payoff balance—the debt actually discharged. When applicable compensation and fees are financed into the principal, they surface here as cost, so the effective cost can exceed the nominal rate entered.
Tax and loan type
BSMV and KKDF vary by loan type and sit inside the installment. The selected profile is used when rebuilding the old plan and pricing the new one; commercial need and commercial vehicle share the commercial profile. For housing, the tax selection is not inferred from present-day ownership: you must state whether the original housing finance qualified at its own drawdown.
For personal credit, the tool applies BDDK 11152 separately to the payoff balance and to total new financing including fees, then enforces the shorter term. Because the decision does not expressly define how financed fees enter the threshold base, this is a conservative calculator safety assumption—not an official BDDK interpretation. Consumer-vehicle refinancing instead requires the maximum maturity that applied at the original drawdown and never guesses it.
Example: is a lower installment always a gain?
Take a personal loan of 250,000 TL drawn over 36 months at 4.5% monthly, of which 12 installments have been paid. A new loan is offered over 24 months at 3.5% monthly. The tool derives the balance, adds new fees, applies the stricter term obtained from its two amount bases, builds the new installment, and shows the monthly and total-cost differences.
Those two rows need not point the same way. Because the rate genuinely fell, the monthly difference may favour you; but if you stretch the new term to 36 months instead of 24, the installment falls much further while the total cost difference can turn against you. The row to decide on is the total cost difference — the monthly difference only tells you whether your cash flow eases.
You can always lower an installment by stretching the term, and that looks effective even when the rate has not improved at all. But over a longer term you pay interest, BSMV and KKDF for longer. Refinancing makes sense when the total cost difference is in your favour, or when the cash-flow relief is genuinely worth a higher total cost to you. The second case is legitimate — but it should be a deliberate choice.
Reading the result
- Payoff balance before fees: the debt to be settled. Compare it with the figure your bank quoted; if they differ materially, enter the bank’s figure and recalculate.
- Applied compensation and new fees: amounts added to the new principal only when they are financed.
- Estimated current payment: derive route only; the installment of your existing plan.
- New payment: the fixed monthly payment of the new plan.
- Monthly payment difference: positive means your monthly cash flow eases.
- Total cost difference: the gap between what you would still pay on the old plan over its remaining term and the total of the new plan. This is the decision row.
- New total repayment and approximate effective annual cost: the full price of the new loan.
- New-loan amortization schedule: principal, interest, BSMV, KKDF and remaining balance, month by month.
Limits and what is out of scope
The calculation is a comparison built from your inputs. The bank may decline the request, apply a different rate, term or fee, or require a fresh assessment. Obtain the payoff balance, applicable compensation, interest/cost reduction, fees, original vehicle maximum maturity and final offer from the bank or contract records.
- Arrears, collection processes and debts under legal follow-up are not modelled; their settlement figures work differently.
- The old plan is assumed to have been paid on schedule; if you made lump-sum overpayments, the derived balance will genuinely diverge.
- Compulsory insurance premiums, life cover and account maintenance charges are not included.
- Variable-rate loans are treated as if the rate were fixed.
- The new term cannot exceed 360 months.
- Restructuring credit-card debt is outside this tool: card debt falls under a different regime and a different rate ceiling.
Frequently Asked Questions
Is refinancing the same as extending card installments?
No. This tool models closing a running consumer or commercial loan and replacing it with a new one. Increasing the installment count on a credit-card transaction, or restructuring card debt, are different products governed by different rate ceilings.
I do not know my payoff balance — what should I do?
Ask your bank for the current settlement figure and enter it with the "Enter payoff balance" option. If you cannot obtain it, the derive route gives you an approximation, but it excludes interest accrued since your last payment and the bank’s own conventions, so it stays indicative.
Does every loan carry early-payment compensation?
No. The tool assumes no general compensation for personal or consumer-vehicle credit; future interest and costs are reduced. Housing compensation may apply only to fixed-rate finance with a contractual clause, within the 1%/2% remaining-term caps and never above the reduction; none applies to variable-rate housing. Enter a commercial charge only from the contract or bank quote.
My installment falls — does that not make refinancing worthwhile?
Not necessarily. An installment can also be lowered simply by extending the term, and then the total interest you pay rises. Decide on the total cost difference row. The monthly difference matters on its own only when relieving a cash-flow squeeze is your priority.
Why are applicable compensation and fees added to the new loan?
Because in most cases they are financed rather than paid out of pocket. Your new principal is then larger than your remaining debt, and the installment is computed on that larger figure. If you intend to pay them separately in cash, leave those fields at 0 and account for the cash you paid in your own comparison.
I entered a new term but get no result — why?
For personal credit, the tool computes the limit from both the payoff balance and total new financing including fees and enforces the shorter one. For consumer-vehicle credit it requires and enforces the maximum that applied at original drawdown. Other types retain a 360-month technical ceiling.