Tips & GuidesJun 25, 20266 min read3 views

Fixed vs Floating Mortgage Rates — Which Should You Choose

Interest is the biggest cost of owning. Understand fixed vs floating to choose what fits your situation.

My Property editorial teamLast updated Oct 20, 2026
Fixed vs Floating Mortgage Rates — Which Should You Choose

Key Takeaways

  • • Fixed rates give certain payments — easy early planning
  • • Floating tracks the MRR: riskier but sometimes cheaper
  • • Most Thai loans are fixed early, then switch to floating

Choosing a loan, many look only at a low first-year rate without knowing if it is fixed or floating — which hugely affects long-run payments. Understand both to match your risk tolerance.

Know fixed vs floating before signing
Know fixed vs floating before signing

The basics

Fixed locks the rate for agreed years — certain payments, easy planning. Floating tracks a reference like the MRR; payments fall when markets ease and rise when they tighten.

Side by side

AspectFixedFloating
CertaintyHighLow
RiskLowHigher
Cheap-rate chanceLimitedIf markets ease

Practical strategy

Most Thai loans are hybrid — fixed for 1–3 years, then floating. A common play: take the longest early fixed term, then refinance into a fresh fixed deal to dodge higher floating rates.

References

  • Bank of Thailand — reference rate data
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