Refinancing is worth it when the savings outweigh the costs and you plan to hold the loan long enough to recover your investment. This comprehensive guide covers when to refinance, the full costs involved, how to calculate potential savings, and a step-by-step overview of the refinancing process.

When refinancing is smart

Refinancing is usually a good idea when your new loan offers a lower rate, better features, or lower overall costs. The most common triggers are:

  • Your fixed rate has ended — you may have rolled onto a higher variable rate without reviewing alternatives
  • Interest rates have changed — you can get a significantly lower rate than your current loan
  • Your financial situation has improved — higher income, better credit, or increased equity means you now qualify for better terms
  • You want better features — access to an offset account, unlimited redraw, or a split loan structure
  • You need to consolidate debt — rolling credit card or personal loan balances into your home loan at a lower rate
  • You have not reviewed in 2+ years — competitive rates may have moved significantly since you last checked

What refinancing really costs

Not all refinancing costs are obvious. The main expenses to consider are:

  • discharge fee — the cost to release your current mortgage
  • application or establishment fee — a fee the new lender charges to set up your loan
  • valuation and legal costs — conveyancing, title searches and state registration fees
  • break costs — only for fixed-rate loans when you exit early
  • redraw, offset or other product fees — some lenders charge extra for loan features you may need

Fixed-rate break costs are often the biggest unknown. Always ask your lender for a break cost estimate before you make a decision.

How to calculate whether refinancing is worth it

The simplest test is whether your savings are larger than your costs, and whether you will keep the loan long enough to recover those costs.

Break-even calculation: total refinancing costs ÷ monthly savings = months to break even.

If the break-even point is under 12 months and you plan to stay in the loan for at least two years, refinancing is usually worth considering. If it is over 24 months, the benefits are less clear.

Refinance Savings Calculator

Enter your current loan details and the refinancing terms to estimate your potential monthly savings and break-even point.

Amount still owing on your home loan
% per annum on your current loan
% per annum with the new lender
Discharge, application, legal, valuation & break costs
Years remaining on your current loan
Years in the original loan agreement (for calculations)
Monthly savings
Annual savings
Total savings
Break-even point
Recommendation
Rate difference
Important Disclaimer — Not Financial Advice: This calculator provides a rough estimate only based on simplified assumptions and does not account for your complete financial circumstances. It assumes fixed monthly repayments and does not factor in break costs, ongoing fees, loan features, lender policies, credit history, changes to interest rates, or variations in loan structure. Actual refinancing savings vary significantly between lenders and depend on your individual situation. The results are estimates only and should not be relied upon as financial advice, a credit assessment, or a loan offer. Always obtain a formal loan quote from your lender. Consider your personal circumstances and seek independent financial and legal advice before making any refinancing decisions. Jackwell Finance Pty Ltd (Australian Credit Licence #389087) recommends comparing offers from multiple lenders and obtaining professional advice. See our full terms and conditions.

What to compare when you refinance

Don’t just compare headline rates. Look at the full package:

  • interest rate type and structure
  • ongoing fees and repayment flexibility
  • offset account and redraw availability
  • break costs and exit penalties on existing loans
  • the lender’s service and turnaround time

Resources & guides

If you want a faster answer, start with these articles:

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Frequently asked questions

Refinance when a new loan offers better value after fees, or when your needs have changed and your current loan no longer fits your goals. Review your mortgage every 1–2 years, and refinance every 2–3 years if it improves your financial position. Always compare the total cost and timing before switching.
Calculate your break-even point: total refinancing costs ÷ monthly savings = months to break even. If it is under 12 months and you plan to stay in the loan for two or more years, refinancing is usually worth considering. Use our refinancing cost breakdown to estimate your specific fees.
Typical costs include discharge fees ($150–$400), application fees (up to $600), legal and settlement fees ($200–$800), valuation fees (if required), and break costs if you are exiting a fixed-rate loan early. Total costs usually range from $1,000–$4,000. See our cost breakdown guide for details.
Do not refinance if break costs are very high, if you plan to sell your property soon, if the rate difference is minimal, or if your break-even point is longer than you plan to hold the loan. If these factors apply, it is better to wait.

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