Common Mistakes When Upgrading Your Family Home

Upgrading your family home while running a business requires more than just finding the right property.

The lending framework treats business income differently from salary income, particularly under the current serviceability buffer that applies a test rate 3.0 percentage points above the actual loan rate. Your borrowing capacity depends not just on your business profit, but on how consistently that profit appears across two years of financial statements and how much of it you retain in the business versus drawing as personal income. For business owners on the Lower North Shore considering an upgrade from a two-bedroom unit to a four-bedroom house, that difference in assessment can determine whether you bridge the deposit gap or need to sell first.

How Lenders Assess Business Income for a Larger Loan

Lenders average your net business income across the most recent two financial years, then apply a range of add-backs for non-cash expenses such as depreciation. The resulting figure is your assessable income for serviceability purposes. Some lenders exclude the most recent year if profit has dropped, while others take a conservative view and use the lower year. If your business has grown but you've been reinvesting profit rather than drawing a larger salary, your serviceability may not reflect the true strength of your position. Business owners who structure their income as a mix of salary, dividends and retained earnings often find that only a portion of that total income counts when applying for a larger loan.

Consider a business owner in Mosman who runs a consulting practice with a net profit of $180,000 last year and $160,000 the year before. The lender averages those two years to $170,000, then deducts non-assessable income such as franking credits if they were included in the profit figure. After adjusting for personal tax and the serviceability buffer, the borrowing capacity sits around $850,000 to $950,000 depending on other commitments. That same borrowing capacity on a PAYG income of $170,000 would often be higher because there's no averaging applied and no question about whether the income will continue if the business slows.

Bridging Loans or Selling First

A bridging loan allows you to purchase your new home before selling your current one. You carry both loans for a short period, typically three to six months, while you prepare and sell the existing property. Interest during the bridging period is usually capitalised or paid from an offset account. The main advantage is certainty. You secure the new home without a subject-to-sale clause, and your family can move once rather than twice. The main risk is that your existing property takes longer to sell than expected or sells for less than the valuation used by the lender, leaving you unable to discharge the bridge without bringing in additional funds.

Lenders assess bridging finance on end debt serviceability, meaning they calculate your ability to service the new loan only, not both loans together. However, they also apply a loan-to-value ratio across both properties during the bridging period. If your current home is valued at $1,400,000 with a $400,000 loan remaining, and you're purchasing a $2,200,000 home with a new loan of $1,600,000, the combined LVR during the bridge is roughly 62%, well within policy. But if your current loan is $900,000 and the new loan is $1,800,000, the combined position is tighter, and some lenders will require you to sell first or limit the term of the bridge.

Selling first removes the timing risk but introduces competition risk. You may sell in winter when stock is low and achieve a strong price, only to find that the property you want to buy has also increased or has multiple buyers competing. The alternative is a long settlement on your sale and a short settlement on your purchase, which requires cooperation from both the buyer of your existing home and the seller of your new one. In our experience, business owners with lumpy income or upcoming tax liabilities prefer the certainty of bridging, while those with consistent PAYG income often sell first to avoid capitalising interest during the bridge period.

Using Equity Without Triggering Lenders Mortgage Insurance

Your usable equity is the amount you can borrow against your current home without exceeding an 80% LVR on that property. If your home is worth $1,500,000 and you owe $600,000, your usable equity is $600,000. That figure assumes the lender will allow you to borrow up to $1,200,000 against a property valued at $1,500,000. You can use that $600,000 as part of the deposit on your next property, leaving the existing loan in place and taking out a new loan secured by the new property.

Some lenders allow you to exceed 80% on the existing property and pay LMI on the excess, then use a larger amount of equity for the new purchase. That approach makes sense when the cost of LMI is lower than the cost of delay. LMI on a $200,000 top-up might be $4,000 to $6,000 depending on the LVR, while waiting another year to build equity through repayments and market growth might mean missing the property you want or facing a higher purchase price.

Linked offset accounts allow you to park your business operating funds and personal savings against the loan balance without reducing your available redraw. For business owners who carry $100,000 to $200,000 in working capital, an offset account linked to the investment loan on your current home can save $6,000 to $12,000 per year in interest at current variable rates, which you can then redirect toward building your deposit or covering the holding costs during a bridge.

Portable Loans and Rate Locks When Moving Lender

A portable loan allows you to transfer your existing loan from your current property to your new property without breaking the fixed rate or repaying the loan in full. Not all lenders offer portability, and those that do often apply conditions. The loan amount must remain the same or increase, the security property must be acceptable to the lender, and you usually need to complete the sale and purchase on the same day or within a very short window. If your existing loan is $500,000 on a fixed rate of 4.8% with two years remaining, and your new loan needs to be $1,400,000, the lender will usually allow you to port the $500,000 and add a new split of $900,000 at the current rate. You keep the benefit of the lower fixed rate on part of your borrowing, but you don't avoid a rate rise entirely.

If you're moving from one lender to another, portability isn't available. Instead, you apply for home loan pre-approval with the new lender and ask them to hold the approved rate for 90 days while you search for a property. Most lenders will honour the rate for that period, though some reduce the hold period to 60 days or require you to have a signed contract before locking. Rate locks don't protect you from rate rises that occur after the lock expires, so if you're buying off the plan or managing a long settlement, you may need to accept the rate on offer at the time of final approval.

Split Loan Structures for Offset Flexibility

A split loan divides your total borrowing into two or more portions, each with its own rate type and features. A common structure for business owners upgrading their family home is a 50% variable portion with a linked offset account and a 50% fixed portion with no offset. The variable portion allows you to deposit surplus business income and personal savings to reduce the interest charged each day, while the fixed portion provides repayment certainty over three to five years. You can adjust the split to 70% variable and 30% fixed, or any other ratio, depending on your cash flow pattern and your view on rate movements.

Offset accounts only work on variable rates or on specific fixed rate products that allow partial offset. Most fixed rate home loan products do not offer offset functionality because the lender has locked in a funding cost for that portion of the loan and can't afford to give you a variable benefit. If you fix 100% of your loan to protect against rate rises, you lose the ability to offset your business cash flow, which for many business owners is a larger financial cost than the risk of a 0.25% rate rise.

Timing the Upgrade Around Tax and Cash Flow Cycles

Business owners often have the bulk of their annual income arrive in a three-month window, either from project completion, annual contracts renewing, or seasonal demand. Lenders assess your income on an annualised basis, but they also want to see consistent cash flow across the most recent three to six months of bank statements. If you apply for borrowing capacity assessment in the month after you've drawn $150,000 from the business to pay a tax liability, your statements show a large outgoing and a reduced account balance, which can trigger questions about ongoing commitments or about whether your income is genuinely recurring.

The best time to apply is usually three months after your tax is paid and two months after your accountant has finalised your financial statements for the most recent year. That gives the lender clean statements, a clear picture of your income, and enough time to process your application before the next tax cycle begins. If you're upgrading in the same year that you've had a strong profit result, some lenders will accept a letter from your accountant projecting the current year profit, though most still require lodged tax returns before they'll include that income in their assessment.

Moving from an investment-grade property in Cremorne to a family home in Castlecrag or Northbridge changes your loan purpose from investment to owner-occupied. Owner-occupied home loan rates are typically 0.20% to 0.40% lower than investment rates, and the interest is not tax-deductible. If you keep your Cremorne property and rent it out, the loan on that property converts to an investment loan, and the interest becomes deductible against your rental income and other investment income. Structuring the loans correctly at the time of purchase avoids the need to refinance later to claim the correct tax treatment.

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