Property & Assets
Current market value of your primary residence or investment property. Used by the Help to Buy calculator and Summary Dashboard.
Property Value at Retirement
Mortgage Details
15 years remaining
Overpayment Schedule
Build a custom overpayment schedule — different amounts for different periods, applied in order from the start of the mortgage.
No overpayment tiers added yet.
Lump Sum Payments
Add one-off repayments to reduce your balance early, or drawdowns that increase it (e.g. further advances).
No lump sum payments added yet.
Summary
Year-by-Year Mortgage Balance
| Year | Cal. Year | Remaining Balance | Principal Paid | Interest Paid | Total Interest |
|---|---|---|---|---|---|
| Start | 2026 | £100,000 | — | ||
Year 1 | 2027 | £88,000 | £12,000 | — | £0 |
Year 2 | 2028 | £76,000 | £12,000 | — | £0 |
Year 3 | 2029 | £64,000 | £12,000 | — | £0 |
Year 4 | 2030 | £52,000 | £12,000 | — | £0 |
Year 5 | 2031 | £40,000 | £12,000 | — | £0 |
Year 6 | 2032 | £28,000 | £12,000 | — | £0 |
Year 7 | 2033 | £16,000 | £12,000 | — | £0 |
Year 8 | 2034 | £4,000 | £12,000 | — | £0 |
Year 9 ✓ Fully Paid Off | 2035 | £0 | £4,000 | — | £0 |
- Remaining Balance: amount still owed at year-end
- Principal Paid: amount paid toward the loan balance that year
- Interest Paid: interest charges for that year
- Total Interest: cumulative interest to that point
Assumes fixed interest rate and consistent payments. Lump sum repayments are applied to the outstanding balance at the start of the specified month, before the regular payment is made.
Synopsis
This calculator projects your mortgage payoff date and total interest cost, then lets you model how overpayments change the picture — either a flat monthly amount, a tiered schedule that changes over time, or one-off lump sum repayments and drawdowns at specific dates. It also factors in workplace pension reallocation and, where relevant, the point at which a Help to Buy equity loan converts into additional mortgage debt, so the year-by-year balance and interest figures reflect your full repayment strategy rather than just the headline monthly payment. These payoff projections feed directly into your Financial Summary.