Reda Apps
All appsMortgage v1.0.0
Money & planning

A clearer path to mortgage-free.

See how small overpayments change the big picture. Compare your plans, explore the numbers, and take a copy with you.

Calculated on your device

01 Your mortgage

Your mortgage interest rate, excluding fees. Assumed constant for the full term.

02 Make it happen sooner

Your regular payment stays the same. Any extra goes towards reducing the balance and term.

Choose overpayment timing
Repeats every 12 payments afterwards.

Extras are applied after interest and your regular payment in the selected month. Your lender's overpayment limits and charges are not included.

Potential interest saved
—
Over the remaining mortgage term
—sooner to mortgage-free
Regular monthly payment—Principal + interest
Planned payment with monthly extra—Starting with your first payment
Mortgage-free with extras——

Your balance over time

Standard planWith extras
Mortgage balance comparisonBoth mortgage plans start at your outstanding balance and reach zero. Use the month slider below to inspect exact balances.
—Standard —With extras —

Two plans. One decision.

Standard repayments
Time to repay
—
Interest paid
—
Overpayments
—
Total paid
—
With your extras Your scenario
Time to repay
—
Interest paid
—
Overpayments
—
Total paid
—

Total paid = your outstanding balance + interest. Overpayments form part of the balance repaid; they are already included in total paid.

Take your plan with you

A real PDF download. No account or print setup.

Every payment, explained.

Monthly amortization schedule for the selected plan
PaymentTotal paidInterestPrincipalExtra¹Balance

¹ Extras are included in both total paid and principal. Displayed amounts are rounded to two decimal places.

How these estimates work
  • A repayment mortgage with a constant annual interest rate and equal monthly periods. Monthly interest = opening balance × annual rate ÷ 12. Interest-only, offset, variable rates, fees, taxes, insurance and early repayment charges are excluded.
  • Regular repayments use the standard amortization formula. Extras reduce the term; the regular payment is held constant. Your final payment and extras are capped at the amount owed.
  • The first payment month is a display label. One month of interest is charged before each regular payment, and extras are applied immediately afterwards. A first-payment lump sum therefore does not reduce the first month's interest.
  • Calculations use unrounded values internally; figures are displayed to two decimal places. Your lender's daily interest, rounding and payment dates may produce different results.
  • GBP, EUR and other currency choices change labels only; there is no currency conversion. Check your lender's allowances and any charges before overpaying.

Payment = P × r / (1 − (1 + r)−n), where r = annual rate / 12 and n = remaining months. At 0% interest, payment = P / n.

Method references: Nationwide's monthly interest assumptions · CFPB: mortgage repayments · MoneyHelper: overpayment considerations.

This is a planning estimate, not a mortgage offer or personalised financial advice.