Refinance Calculator
Use this refinance calculator to see if refinancing your mortgage is worth it. With Australian interest rates fluctuating, many homeowners are discovering they can save thousands of dollars annually by switching to a lower rate. Our calculator helps you model your exact scenario, calculate break-even points, and determine whether refinancing makes financial sense for your situation.
What is a Refinance Calculator?
A refinance calculator is a financial tool that compares your current mortgage terms with potential new loan options. It calculates your monthly repayment changes, total interest savings over the loan term, refinancing costs, and the break-even point (how long it takes for your savings to exceed your refinancing fees).
The calculator takes into account your current loan balance, existing interest rate, remaining loan term, new interest rate options, and all associated refinancing costs including application fees, valuation fees, discharge fees, and legal costs. This comprehensive analysis gives you a clear picture of whether refinancing will benefit your financial position.
When to Use a Refinance Calculator
Refinancing makes sense when you can identify clear financial advantages. Use the refinance calculator in these situations:
- Interest rates have dropped: If rates have fallen 0.5% or more since you took your original loan, you may save significantly by refinancing.
- Your credit score has improved: Better credit can qualify you for lower rates than when you first borrowed.
- You want to access equity: Cash-out refinancing lets you tap into your property equity for renovations or investments.
- You need to change loan terms: Switching from variable to fixed vs variable loan rate options or adjusting your loan term.
- You are consolidating debt: Rolling high-interest debt into your mortgage at a lower rate.
- Your property value has increased: Higher equity may eliminate lender’s mortgage insurance or unlock better rates.
The key is planning to stay in the property long enough to recoup your refinancing costs. Generally, if you plan to remain in your home for at least two more years, refinancing can be worthwhile.
Refinance Calculator Example
Here is a practical example showing how the refinance calculator works:
Current Loan Balance: $600,000
Current Interest Rate: 5.5% per annum
Current Monthly Repayment: $3,410
Remaining Loan Term: 25 years
New Refinance Rate: 4.5% per annum
Total Refinancing Costs: $1,500 (including broker fees, valuation, discharge fees, and registration)
New Monthly Repayment: $3,053
Monthly Savings: $357
Break-Even Point: 4.2 months ($1,500 ÷ $357)
Total 5-Year Savings: $21,420 minus $1,500 in costs = $19,920 net savings
In this scenario, you break even in just over four months. After that, every month delivers genuine savings. Over five years, you save nearly $20,000, which could be redirected toward paying down your principal faster, investing in property improvements, or building your investment portfolio.
Types of Refinancing Options
Understanding the different refinancing strategies helps you choose the right approach for your financial goals:
1. Rate and Term Refinance: This is the most common type. You switch to a lower interest rate while keeping your loan term and amount the same. The goal is purely to reduce your monthly repayments and total interest paid over the life of the loan.
2. Cash-Out Refinance: You refinance for more than you currently owe and receive the difference in cash. This strategy is popular for funding investment properties, home renovations, or debt consolidation. The borrowed funds can be tax-deductible if used for income-producing purposes. Always consult the Australian Taxation Office refinancing guide for current rules.
3. Term Change Refinance: You adjust your loan term. Shortening your term (for example, from 30 to 20 years) increases monthly payments but dramatically reduces total interest. Lengthening your term lowers monthly payments but increases total interest over time. This option suits borrowers whose income or financial priorities have changed.
4. Consolidation Refinance: You roll other debts (credit cards, personal loans, car loans) into your mortgage. Because mortgage rates are typically lower than other consumer debt, this can reduce your overall interest burden and simplify your finances into one monthly payment.
Calculating Your Break-Even Point
The break-even point is critical when evaluating refinancing. It tells you how many months it will take for your accumulated savings to exceed your upfront refinancing costs. The formula is simple:
Break-Even Months = Total Refinancing Costs ÷ Monthly Savings
If your break-even is 12 months and you plan to stay in the property for five years, refinancing is almost certainly beneficial. However, if your break-even is 36 months and you might sell within two years, refinancing may cost you money. For more context on how rates affect your decisions, explore the interest rate impact on property prices.
Tax Implications of Refinancing
Refinancing can have significant tax consequences, especially for property investors. If you refinance to borrow additional funds for investment purposes (such as purchasing another property or funding renovations on a rental property), the interest on that portion of the loan becomes tax-deductible.
However, if you use cash-out refinancing for personal expenses (a holiday, car, or personal debt), that portion of the interest is not deductible. Keeping your loans separated or maintaining detailed records is essential. Always consult a qualified tax accountant or visit mortgage refinancing information resources to understand current tax strategies.
Should You Use a Broker or Go Direct to a Bank?
Many borrowers wonder whether to refinance through a mortgage broker or approach their bank directly. Brokers have access to multiple lenders and can compare dozens of loan products quickly, often finding better rates or terms than you could negotiate alone. Banks may offer loyalty discounts or streamlined processes for existing customers. Learn more about the pros and cons in our guide on mortgage broker vs bank options.
Next Steps: Use Our Refinance Calculator
Ready to see your potential savings? Use our refinance calculator tool below to model your exact scenario. Enter your current loan details, compare with new rate options, and see your break-even timeline and long-term savings. Take control of your mortgage and start saving today.
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