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Loan vs mortgage: the basics

What amortising loans and mortgages have in common, how interest and term affect payments, and what calculators leave out.

Borrowing · Updated 2026-09-29

Same maths, different products

Personal loans and mortgages often use reducing-balance (amortising) schedules: each payment covers interest first, then principal. Mortgages usually run longer, use property as security, and may allow interest-only periods or offset features that a basic EMI tool does not model.

A shorter term or a lower rate cuts total interest. A larger loan increases both payment and interest paid over time.

What to enter carefully

Use the nominal annual rate your lender quotes for the reducing balance, not a marketing APR that already folds in fees — unless you know they match. Enter the term in months or years consistently with the calculator labels.

Fees, insurance, early repayment charges, variable rate resets, and tax relief are outside a simple repayment estimate.

Comparing offers

Compare the same principal, rate basis, and term length. Ask lenders for a full repayment schedule and total amount payable. Property purchases may also need stamp duty or transfer tax — see country property calculators where available.

Frequently asked questions

Does a higher monthly payment always cost less overall?

Often yes if it comes from a shorter term or lower rate, but check early repayment fees and whether the rate is fixed or variable.

Estimates and explanations only — not financial advice. See our disclaimer.