Early Loan Settlement · Methodology

How the calculation works

Estimate the balance and cash-flow effect of settling a standard reducing-balance consumer loan on a selected future date.

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Included

  • An outstanding balance and APR
  • Monthly, fortnightly or weekly repayments
  • A remaining contractual term
  • An optional actual regular payment
  • A selected settlement date
  • A user-entered settlement fee, rebate or other adjustment
  • A full illustrative repayment schedule
  • Remaining interest, net saving and time removed from the schedule

Outside this method

  • A binding lender settlement quote
  • The statutory rebate calculation required for a particular regulated agreement
  • Daily interest and exact contractual payment dates
  • Notice and deferment periods
  • Changing rates, missed payments, arrears and insurance
  • Mortgages and income-contingent UK student loans
  • Advice about whether early settlement is suitable

Calculation

Core formulas

Periodic rate

r = APR ÷ payments per year

The entered APR is split into 12, 26 or 52 equal periodic rates for this simplified illustration.

Calculated payment

Payment = P × r ÷ [1 − (1 + r)⁻ⁿ]

When no actual payment is entered, the calculator derives the constant amount that amortises the opening balance over the remaining periods.

Reducing balance

Bₜ = Bₜ₋₁ + interestₜ − paymentₜ

Interest is applied first and each payment then reduces interest and capital.

Estimated settlement amount

Balance at selected period + settlement adjustment

A positive adjustment increases the estimate; a negative rebate or credit reduces it.

Remaining interest avoided

Σ scheduled interest after settlement date

This is the modelled interest that would arise if the remaining schedule continued.

Net saving after adjustment

Remaining interest avoided − settlement adjustment

This shows the cash difference before allowing for alternative uses of the settlement money.

Timing convention

When cash flows occur

The selected date is converted to the nearest repayment period using an average 365.2425-day year. The model does not know the contractual payment day. Interest is charged and the regular payment is made once in each modelled period.

Limitations

What the result cannot establish

  • The Consumer Credit Act and the Consumer Credit (Early Settlement) Regulations can require a rebate of credit charges, but this calculator does not reproduce the agreement-specific statutory calculation.
  • A lender may calculate interest daily and apply contractual dates, notice, deferment, charges, rebates and rounding that change the figure.
  • APR is a comparison measure; dividing it equally by payment frequency is a transparent simplification and may not match the lender’s effective periodic rate.
  • An entered payment that differs from the derived amortising amount can extend or shorten the schedule.
  • The lender’s dated settlement quotation and agreement govern the amount required.

Reference tests

Numerical checks

CaseInputsExpected result
Zero-rate loan£12,000 balance; 0% APR; 48 monthly payments£250 calculated monthly payment and no interest avoided
Immediate settlement£12,000 balance; settlement today; £0 adjustment£12,000 estimated settlement before lender-specific calculations
Positive fee£12,000 balance; settlement today; £100 adjustment£12,100 estimate and net saving reduced by £100
Non-amortising paymentPayment no higher than the interest charged in the first periodWarning that the entered payment does not reduce the balance

Evidence

Sources