Active CurrencyUS Dollar — $
🇺🇸
Basic Calculator REPAYMENT
Calculate your monthly repayments for a repayment or interest-only mortgage.
$
%
yrs
Repayment: You pay off both interest and the loan itself each month — at the end of the term, the mortgage is fully repaid.
Interest only: Monthly payments cover just the interest. The original loan amount remains and must be repaid separately at the end.
Interest only: Monthly payments cover just the interest. The original loan amount remains and must be repaid separately at the end.
Output
Monthly Payment
—
Total Repaid
—
Total Interest
—
Interest Rate
—
per year
| Year | Payment | Principal | Interest | Balance |
|---|
Compare Two Mortgages A vs B
Enter the details of two mortgage deals side by side to see which costs less over the comparison period.
A Mortgage A
$
%
yrs
$
B Mortgage B
$
%
yrs
$
yrs
Comparison Output
Mortgage A — Monthly
—
Mortgage A — Cost over period incl. fee
—
Mortgage B — Monthly
—
Mortgage B — Cost over period incl. fee
—
Early Repayment OVERPAY
See how much time and interest you could save by making monthly overpayments, a one-off lump sum, or both together.
$
%
yrs
Monthly Overpayment
$
mo
Repayment Savings
Standard monthly payment
—
New monthly payment
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Interest saved
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Time saved
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New payoff date
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Total interest (without overpaying)
—
| Year | Payment | Extra paid | Interest | Balance |
|---|
Borrowing Power ESTIMATE
A guide based on typical lender income multiples. Actual offers vary between lenders — always get a mortgage in principle.
$
$
$
$
%
yrs
Most lenders will lend 4–4.5× your income. Some specialist lenders go up to 5–6× for high earners or certain professions. These figures are for guidance only.
Borrowing Estimate
Likely max borrowing (4×)
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Higher estimate (4.5×)
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Stretch estimate (5×)
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Max property price
—
incl. your deposit
Est. monthly repayment
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Loan-to-Value (LTV)
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// Affordability check — repayment as % of net monthly income
0%
25% — comfortable
35% — stretched
50%+