Quick Answer: It's usually worth refinancing when your fixed term is ending, when a genuinely better rate or cashback offer covers the switching costs, when your circumstances have changed (income, equity, or purpose), or when your current lender can't offer a loan structure you need - but rarely worth it just to chase a small rate difference mid-term.
Good Reasons to Refinance
The clearest trigger is your fixed term coming up for renewal - this is the natural, no-penalty moment to shop around rather than automatically rolling onto your bank's standard rate. Beyond that, refinancing often makes sense if you've built up significant equity and want to access it, if your income or credit situation has genuinely improved since you last borrowed, or if you need a loan structure (like an offset account or interest-only period) your current lender doesn't offer.
When It's Better to Hold Off
Refinancing mid-fixed-term almost always triggers a break fee, and unless the rate difference is substantial, the fee can wipe out any savings. It's also worth pausing if you're planning to sell within the next year or two - the upfront legal and valuation costs may not pay themselves back before you move on anyway.
- You're locked into a fixed term with a meaningful break fee
- You're planning to sell within 12-24 months
- The rate difference is marginal once fees and cashback clawback are factored in
- Your current lender will match or beat competing offers if you simply ask
Quick Summary
- Fixed term renewal is the natural refinancing moment - shop around before rolling over.
- Break fees usually make mid-term switching costly unless the rate gap is large.
- Ask your current lender to match offers first - it can save the switching hassle entirely.