Mortgage Freedom Calculator
Calculate the exact impact of overpayments, see your total interest saved, and map your path to financial independence. Free, instant, and private.
Mortgage Freedom Optimizer
See exactly how much time and money you save with regular overpayments.
Each extra pound you pay reduces your outstanding capital — which reduces the interest charged next month. This compounds: less interest means more of your regular payment goes to capital, creating a virtuous cycle.
Example
On a £250,000 mortgage at 4.2% over 22 years, adding just £300/month in overpayments saves approximately £47,000 in interest and cuts 8 years from your term.
Check your T&Cs: Most lenders allow overpayments of up to 10% of your outstanding balance per year without early repayment charges.
Strategy Comparison
Based on a £250,000 mortgage at 4.2% over 25 years.
| Strategy | Monthly Extra | Interest Saved | Years Saved | Status |
|---|---|---|---|---|
| No overpayments | £0 | — | — | — |
| Coffee money | £50 | ≈ £9,500 | ≈ 2 years | Easy |
| Regular overpay | £200 | ≈ £32,000 | ≈ 6 years | Recommended |
| Aggressive overpay | £500 | ≈ £58,000 | ≈ 11 years | Advanced |
| Lump sum (£10k/yr) | Variable | ≈ £70,000 | ≈ 14 years | If possible |