Insights

Fixed versus floating mortgage rates: a neutral guide

A current comparison of benchmarks, lock-ins, fees, repricing and stress scenarios.

Published 11 January 2022

Reviewed September 2026. Mortgage products, benchmarks and rates change. This is general education, not independent financial advice.

Fixed and floating describe how pricing changes

A fixed-rate package offers payment certainty for a stated period, not necessarily the full loan. A floating package can move with its benchmark and spread. Both may include lock-ins, repricing rules, legal subsidies, clawbacks and fees.

Compare the complete package

  1. Record the benchmark, spread, fixed period and reversion formula.
  2. Calculate total interest and cash flow across several rate scenarios.
  3. Check lock-in, prepayment, sale, repricing and refinancing terms.
  4. Allow for valuation, legal and administrative costs.
  5. Match certainty to income stability, liquidity and expected holding period.

A lower initial rate is not automatically cheaper over the relevant period. Use current written lender offers, check CPF's Home Purchase Planner, and obtain regulated advice for the household before selecting a package.