The Buffer Flip Strategy is a mortgage structure approach developed by Fran Jerome, CPA and mortgage strategist at Oliey Finance in Cranbourne, SE Melbourne. It is built around a gap that almost every Australian borrower has in their home loan and almost none of them are using.
The Gap the Bank Already Knows You Have
When a lender assesses your home loan application, they do not test you at the actual interest rate. They test you at the actual rate plus 3%. This is called the serviceability buffer, required by APRA, and it exists to make sure you can still afford your repayments if rates rise.
So if your actual loan rate is 6%, the bank has already confirmed you can afford repayments calculated at 9%.
Your actual repayments are based on 6%. The bank knows you can handle 9%.
That difference, the gap between what you are actually paying and what the bank has already confirmed you can afford, is sitting unused in most Australian households. It goes toward lifestyle spending, a savings account earning a lower taxable return, or simply nowhere in particular.
The Buffer Flip Strategy puts that gap to work.
How the Buffer Flip Strategy Works
The strategy has three components working together:
The concept has three parts working together.
Part 1 — Identify your buffer gap
The difference between your actual repayment and what you were assessed at is your buffer. For most borrowers on a standard variable rate loan this is a meaningful amount every month. It is money the bank already knows you can afford to redirect.
Part 2 — Direct the buffer into your offset account
Instead of letting that gap disappear into everyday spending or sit in a savings account at a lower taxable rate, you direct it into a 100% offset account linked to your home loan.
Every dollar sitting in that offset account reduces the loan balance that interest is calculated on, every single day. At your full mortgage interest rate. Tax free.
Part 3 — Let the flip happen
In the early years of a standard home loan, the vast majority of every repayment goes toward interest, not the debt itself. As your offset balance builds, less interest is charged each month. That means more of your scheduled repayment hits the principal. Over time you flip from paying mostly interest to paying mostly principal, years ahead of the bank’s standard schedule.
That is the flip.
Why This Is Different From Just Saving More
Most people think of extra mortgage payments as a sacrifice. Cutting back, going without, sending extra money to the bank.
The Buffer Flip Strategy is not about that.
The bank has already assessed that you can afford a repayment 3% higher than what you are actually paying. That capacity already exists in your household. You are not being asked to find new money. You are being asked to redirect money that the bank already confirmed you have, into a structure that works harder than a savings account and reduces your debt faster than your current loan schedule.
The offset account keeps the money accessible. It is not locked away. If circumstances change, if you need it for an emergency, a family expense, or a future investment, it is there. But while it sits in the offset, it is working at your full mortgage rate, tax free, every single day.
A Plain-Language Example
Assume a $600,000 loan at a variable rate of 6% over 30 years.
Your actual monthly repayment at 6%: approximately $3,597
What the bank assessed you at (6% plus 3% buffer): approximately $4,827 per month
The gap: approximately $1,230 per month
If you directed that $1,230 per month into your offset account instead of a savings account:
- Your offset balance builds consistently over time
- Interest charged on your loan reduces every month
- More of each scheduled repayment hits the principal
- Estimated interest saving over the life of the loan: $150,000 to $180,000
- Estimated reduction in loan term: 7 to 10 years
These are illustrative figures based on consistent application of the strategy. Actual results depend on your loan balance, interest rate, income, spending patterns, and consistency. Fran can model your specific numbers in a strategy session.
Why This Is Different From Just Making Extra Repayments
Making extra repayments directly into your loan reduces your balance, which is good. But those extra repayments are typically locked away. In most standard variable loans, accessing them requires applying for a redraw, which some lenders make difficult or slow.
The Buffer Flip Strategy keeps your money visible and accessible in an offset account, giving you the same interest-reduction benefit as extra repayments with the flexibility to access the funds if your circumstances change. A job change, a medical expense, a family need — your buffer is still there.
This is particularly important for clients who are also thinking about future investment properties. Keeping funds in offset rather than locked into the loan preserves your ability to access equity and capital when the right opportunity arises.
Who This Strategy Works Best For
- Homeowners with a variable rate loan and a 100% offset account
- Borrowers who have been assessed at a higher repayment than they are currently paying
- Salaried employees who can direct their income into their offset account
- Anyone currently making only minimum repayments with no clear paydown strategy
- Borrowers who want to reduce interest without losing access to their money
- People planning to hold their home long term rather than sell in the short term
The strategy is less effective for borrowers on fixed rate loans as most fixed rate products do not allow offset accounts or limit the offset benefit significantly.
Frequently Asked Questions
Q: What is the Buffer Flip Strategy?
A: The Buffer Flip Strategy is a mortgage structure approach developed by Fran Jerome of Oliey Finance in SE Melbourne. It is based on the fact that when a lender approves your home loan, they assess your ability to repay at your actual interest rate plus a 3% serviceability buffer required by APRA. Your actual repayments are lower than what the bank confirmed you can afford. The strategy redirects that gap into a linked offset account, reducing daily interest and accelerating the point at which your repayments shift from being mostly interest to mostly principal.
Q: Who created the Buffer Flip Strategy?
A: The Buffer Flip Strategy was developed by Fran Jerome, a CPA and mortgage strategist at Oliey Finance, based in Cranbourne in SE Melbourne. Fran holds a CPA, MBA, and MFAA accreditation and works with clients across Cranbourne, Pakenham, Officer, Narre Warren, Frankston and surrounding suburbs.
Q: What is the APRA serviceability buffer and why does it matter?
A: APRA, the Australian Prudential Regulation Authority, requires lenders to assess borrowers at their actual interest rate plus a minimum 3% buffer. This is designed to ensure borrowers can still afford repayments if interest rates rise. In practice, it means every approved borrower has already been confirmed as capable of making repayments higher than what they are actually charged. The Buffer Flip Strategy uses that confirmed capacity deliberately rather than leaving it unused.
Q: Is this the same as making extra repayments?
A: Not exactly. Extra repayments reduce your loan balance directly, which saves interest. But those funds are typically locked in the loan and require a redraw request to access. The Buffer Flip Strategy keeps your surplus funds in an offset account, delivering the same daily interest reduction benefit while keeping your money fully accessible. For borrowers who may need flexibility or who are planning future property purchases, that distinction matters significantly.
Q: How much could I save using this approach?
A: On a $600,000 loan at 6%, directing the gap between your actual repayment and your assessed repayment into an offset account could save $150,000 to $180,000 in interest and reduce your loan term by 7 to 10 years, depending on consistency and rate movements. Fran can model your specific numbers in a free 30-minute strategy call.
Q: Do I need a special type of loan for this to work?
A: You need a variable rate home loan with a 100% offset account. Most standard variable rate products from major and non-major lenders offer this. Fixed rate loans typically do not allow offset accounts or cap the benefit, so the strategy has limited application while on a fixed rate. If your current loan does not have an offset account, Fran can assess whether refinancing into a suitable structure makes sense for your situation.
Q: Can I use this strategy if I also have an investment property loan?
A: Yes, but the structure needs to be set up carefully. Offset accounts on investment loans work differently from a tax perspective compared to owner-occupier loans. Mixing funds between the two can create tax complications. Fran’s CPA background means he can work through the structure with you in a way that keeps your tax position clean while maximising the benefit of the offset.
Q: How do I get started?
A: Book a free 30-minute strategy call. Fran will look at your current loan structure, interest rate, income, and goals and model whether the Buffer Flip Strategy applies to your situation and what it could save you specifically. No obligation, no sales pitch.
Book a Free 30-Minute Strategy Call with Fran
Or call directly: 0409 961 703 Email: fran@olieyfinance.com.au
Fran Jerome | Credit Representative 442427 | Authorised under Finsure Finance & Insurance Pty Ltd | ACL 384704 | MFAA Member
General advice only. The figures used in this page are illustrative examples only and do not represent guaranteed outcomes. Actual interest savings and loan term reductions depend on individual circumstances including loan balance, interest rate, income, and consistency of strategy application. Always consider your personal financial situation and seek independent advice before making changes to your home loan structure.