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Refinance and Equity Release Check.
Refinancing is not just about the rate. It’s about your equity position, exit costs, serviceability at current income, and whether pulling equity out is the right structure for what you plan to do with it.
Why this matters
The refinance conversation in Australia is almost always framed as a rate comparison. Your current lender is charging you X. A new lender is offering Y. You save Z per month. Done. This framing misses the most important variables and causes many borrowers to make refinancing decisions that cost more than they save.
Exit costs — break fees on fixed rates, discharge fees, legal fees — reduce the net saving. More importantly, when you refinance, the new lender assesses you as a new borrower under current serviceability standards. A loan that was approved five years ago at a different income level, with different credit card limits, and under different serviceability rules may not be approvable today at the same terms. Some borrowers discover at refinance that they are mortgage prisoners — unable to refinance because they no longer meet current serviceability requirements, even though they have been making all repayments on time.
Equity release adds a further layer of complexity. Borrowing more against your property to fund an investment property deposit, a renovation, or any other purpose creates a new loan structure that affects your tax position if the property is ever used for investment purposes. The tax treatment of interest on equity release funds depends entirely on what those funds are used for — and getting this wrong creates problems with the ATO that are expensive to fix.
**Real case study summary:** An owner-occupier refinanced to release $120,000 in equity to fund a deposit on an investment property. The interest on the equity release portion is deductible because the funds were used for investment purposes. But he put the $120,000 into his offset account first — making two separate payments later to the investment property deposit and stamp duty. Because the funds mixed with personal money in the offset account, the ATO’s position on the deductibility of the interest became complicated. A two-minute conversation with his accountant before he transferred the money would have set the structure up correctly from the start.
“The rate is the headline. The exit costs and borrowing capacity are the story.
What you're building
A refinance cost-benefit and equity release structure report showing: net interest savings after discharge and setup fees, serviceability buffers under current rates, equity release tax-deductibility structures, and mortgage prisoner risk signals.
Claude (free tier works), your current loan balance, interest rate, new rate offers, exit fees, and the intended use of released equity.
Copy the prompt.Paste your details.Analyze the output.
Paste the prompt below into Claude or ChatGPT. Replace the bracketed fields with your specific property or portfolio details.
Always verify the AI's assumptions with qualified professionals. This output is a first-pass educational tool, not advice.
Refinance sanity check
Refinance cost-benefit and equity release model · serviceability check
You are an Australian property finance educator helping a property owner think through the full picture of refinancing or equity release before speaking to a broker. Help me understand what is actually involved, not just the rate comparison. MY DETAILS: - Property: [describe briefly — owner-occupied PPOR / investment property / both] - Current lender: [name if comfortable sharing, or just 'current lender'] - Current loan balance: $[amount] - Current interest rate: [X% — variable / X% fixed until date] - Current loan type: [principal and interest / interest only — if IO, when does it expire?] - Estimated current property value: $[amount — your best estimate] - Current LVR (loan balance divided by property value): [X%] - Monthly repayment: $[amount] - Reason I am considering refinancing: [better rate / equity release for deposit / equity release for renovation / equity release for investment / debt consolidation / switching from IO to P&I / other — describe] - If equity release: how much I want to access: $[amount] and what I plan to use it for: [describe] - Years remaining on my current loan: [X years] - My income: $[gross annual] — any changes since my original loan? [yes — describe / no] - Other loans or debts that have changed since original loan: [describe or none] Return a refinance and equity release assessment with these 6 sections: ## 1. MY CURRENT POSITION - My current equity: estimated property value minus loan balance = $[calculate] - My current LVR: loan balance divided by estimated property value = X% - If I release $X of equity: my new loan balance = $[calculate], my new LVR = X% - Am I above or below the 80% LVR threshold at the current balance? At the new balance after equity release? - If the equity release takes me above 80% LVR: LMI will likely apply. Estimate the LMI cost. - Flag: your estimated property value is just that — an estimate. A lender's valuer may value your property differently, which changes all of the above numbers. ## 2. THE REAL COST OF REFINANCING Most people compare the new rate to the old rate. This misses several costs: - Break costs if fixed: if I am on a fixed rate, I may face a break cost to exit early. Note how break costs are calculated and flag that they can be substantial. - Discharge fee from current lender: typical range and what it covers - Application and establishment fee at new lender: typical range - New lender valuation fee: typically $300–$600 - Legal fees for new mortgage registration: typically $300–$500 - LMI if applicable: if equity release takes me above 80% LVR, LMI is an additional cost - Time cost: refinancing typically takes 4–8 weeks from application to settlement. Flag the opportunity cost during this period. - The break-even calculation: at my current loan balance, how long does it take for the rate saving to recover all the costs of switching? Show the maths. ## 3. SERVICEABILITY — AM I STILL ELIGIBLE? This catches many people by surprise. When I refinance, the new lender assesses me as a new borrower. I must meet their current serviceability criteria, not the criteria that applied when I first borrowed. - Has my income changed since I first borrowed? If it has decreased, note the serviceability risk. - Has my debt position changed? New credit cards, car loans, or other liabilities since original loan will reduce assessed capacity. - The serviceability buffer applies: my new loan amount will be assessed at the new lender's rate plus 3%. Show what this implies for my serviceability. - Equity release implications: if I am releasing equity, I am borrowing more. The full new loan amount (current balance plus equity release) must meet serviceability at the buffer rate. - Flag: many people discover at refinance that the loan they currently have they would not be approved for today, due to changes in income, living expenses, or liabilities. This is not unusual and a specialist broker can help navigate it. ## 4. EQUITY RELEASE — WHAT I NEED TO KNOW If I am releasing equity: - What is equity release and how does it work mechanically? - What can equity release funds be used for: deposit on investment property (yes), renovation (yes), paying off credit cards (possible but consider carefully), holiday or lifestyle spending (technically possible but a poor use of equity) - Tax implications of equity release: if I release equity from an investment property, the deductibility of interest on the new borrowing depends on what I use the funds for. This is an area where the ATO has clear rules and an accountant's advice is essential. - If I am releasing equity to fund a deposit on an investment property: explain how this creates a complex loan structure that requires careful setup to maintain tax deductibility - Future refinance implications: every dollar I release reduces my equity and increases my LVR, which affects my options in future refinances ## 5. WHAT TO TAKE TO A BROKER Generate a checklist of what I should prepare before a refinance broker conversation: - Documents I need - Questions I should have answered about my current loan (exit costs, rate, remaining term) - Numbers I should know (current value estimate, loan balance, monthly repayment) - The specific question I should ask about whether I will meet serviceability for the new loan amount ## 6. IS REFINANCING THE RIGHT DECISION FOR ME? Based on my profile, work through: - What is my estimated annual saving from switching at a typical rate differential? Show the maths. - What are my total refinancing costs based on what I have described? - How long does it take to recover the costs? Is this timeframe reasonable given my holding period? - Is there a scenario where refinancing makes my position worse, not better? (e.g. extending loan term, LMI cost, break cost) - The question I should answer before proceeding: what do I actually want to achieve, and is refinancing the most efficient way to achieve it? --- Educational analysis only. Not financial, tax, or credit advice. Refinancing and equity release decisions are complex and depend on individual circumstances, current lender terms, and specific lender policies. Engage a qualified mortgage broker and an accountant (for equity release tax implications) before making any refinancing decision.
An owner-occupier refinanced to release $120,000 in equity to fund a deposit on an investment property. The interest on the equity release portion is deductible because the funds were used for investment purposes. But he put the $120,000 into his offset account first — making two separate payments later to the investment property deposit and stamp duty. Because the funds mixed with personal money in the offset account, the ATO’s position on the deductibility of the interest became complicated. A two-minute conversation with his accountant before he transferred the money would have set the structure up correctly from the start.
Your first run is fine. Your fifth is sharp.
Compare actual discharge and setup fees
Enter the exact exit and entry fees for both lenders to verify if the interest savings outweigh the refinance costs.
Test serviceability at current interest rates
Use current buffer rates to confirm you won't become a 'mortgage prisoner' locked into your current loan.
Model interest deductibility correctly
Verify the purpose of released equity (like an investment deposit) is documented separately to keep your tax claims clean.
Save this refinance calculator in your Claude Project. Re-run it semi-annually to see if switching is financially viable.
What it still gets wrong.
Exit fees reduce refinance savings
Break fees on fixed loans, discharge fees, and registration costs can wipe out the interest savings of switching lenders in the first year.
Mortgage prisoner risk is real
Refinancing requires passing current serviceability assessments. If interest rates have risen or your income has changed, you may be unable to switch lenders.
Equity release tax compliance
The tax-deductibility of interest on released equity depends strictly on what the funds are used for, not what property they are borrowed against.
Lenders shade secondary incomes
Lenders shade rental or commission incomes at 70-80% when evaluating serviceability, reducing your refinance borrowing capacity.
How this stacks.
Day 15 models refinance margins. Day 06 checks borrowing reality. Day 25 analyzes loan structure options. Run them to unlock trapped equity.
Before you switch lenders.
You'll have calculated the net savings after exit and setup fees.
You'll have an indicative sense of whether you'd meet current serviceability buffers and how releasing equity for investment might be structured — questions to confirm with your broker and accountant, not a lender assessment.
Rentvesting comparison
Rentvesting vs home owner-occupier comparison · capital gains tax model
Read Day 16 ↗