Common Mistakes in Serviceability Assessment

Serviceability assessment determines the loan amount a lender will approve based on your ability to meet repayments under stress conditions, not just current income.

Most legal professionals underestimate how much of their income a lender will exclude when calculating what they can borrow. A senior associate earning $180,000 might assume they can service a loan based on that figure, but lenders apply buffers, reduce certain income types, and add assumed living expenses that can reduce serviceability by 30% or more. The calculation involves your net income after tax, less committed expenses, less a benchmark for living costs, then tested at a rate typically 3% above the actual loan rate.

How Lenders Calculate Your Net Servicing Income

Lenders start with your gross income, then subtract tax and apply haircuts to variable income. Base salary for a salaried solicitor is assessed at 100%, but bonuses are typically assessed at 80% if you have received them for two consecutive years. If you work as a contractor or self-employed barrister, lenders average your net profit over the most recent two financial years and may discount that figure by 20% depending on the structure. Overtime and allowances receive similar treatment, assessed at 80% if consistent over at least 12 months.

Consider a litigation lawyer who earns $150,000 in base salary plus a $30,000 annual bonus. The lender calculates net servicing income using the full base salary but only 80% of the bonus, reducing declared income by $6,000 before tax is even applied. After tax, the serviceable income figure drops further, and this is the starting point before any expenses are deducted.

Living Expense Benchmarks That Override Your Actual Spending

Lenders use the Household Expenditure Measure (HEM), a standardised calculation that estimates your minimum living costs based on household size and location. Even if you declare lower actual expenses on your application, most lenders will apply the HEM figure if it exceeds what you have stated. For a single legal professional in Sydney, the HEM baseline sits around $2,200 to $2,500 per month. For a couple with one child, that figure rises to roughly $3,500 to $4,000.

This creates a disconnect for professionals who live frugally or share expenses. A barrister renting a room in a shared apartment and spending $1,800 per month will still be assessed as if they spend $2,400, reducing their borrowing capacity by the difference. The lender is not questioning your actual spending, they are applying a floor to protect against future changes in lifestyle or circumstances.

The Serviceability Buffer and Assessment Rate

Every lender tests your ability to repay at a rate higher than the actual loan rate you will pay. This buffer, mandated by the Australian Prudential Regulation Authority (APRA), is currently set at 3% above the loan rate. If you are applying for a variable rate loan at 6.2%, the lender assesses whether you can meet repayments at 9.2%. For a $700,000 loan, that difference represents an additional $1,400 per month in theoretical repayments.

The buffer exists to ensure you can still service the loan if rates rise. It also means that borrowers with tight margins between income and expenses will hit serviceability limits well before they reach the loan amount they might expect based on a standard income multiple. A corporate lawyer earning $200,000 might assume they can borrow six times their income, but after tax, HEM, and the buffer, the approved amount could sit closer to $850,000 depending on other commitments.

How Existing Debts Reduce Your Capacity

Lenders treat existing debt commitments differently depending on the type. Credit card limits are assessed at their full available limit, not the current balance. If you have a $20,000 credit card with a $2,000 balance, the lender assumes a monthly repayment based on 3% to 3.8% of the $20,000 limit, which equates to roughly $600 to $760 per month. That assumed repayment is deducted from your net servicing income even if you pay the card off in full each month.

Car loans, personal loans, and HECS debt all reduce capacity, but in different ways. Car and personal loans are assessed at their actual monthly repayment. HECS debt does not have a monthly repayment, but it reduces your after-tax income because the compulsory repayment is deducted before you receive your pay. A solicitor with a $60,000 HECS balance earning $160,000 will have roughly $4,500 deducted annually, reducing net income by that amount in the serviceability calculation.

Closing unused credit cards and consolidating short-term debts before applying for a home loan pre-approval can improve your borrowing capacity substantially. In some cases, cancelling a single $15,000 credit card increases serviceability by $80,000 to $100,000 depending on the lender's credit card assessment rate.

When Investment Properties Complicate the Calculation

If you own an investment property, lenders include the rental income but apply a discount, typically 80%. They also add the full loan repayment for that property, not just the interest-only portion if you are on an interest-only loan. If your investment property generates $2,400 per month in rent and the loan repayment is $2,200 on an interest-only basis, the lender assesses rental income at $1,920 and the repayment at the principal-and-interest amount, which might be $3,100. The net effect is a reduction in serviceability, not an increase.

This calculation catches many legal professionals off guard when they apply to expand their property portfolio. A family lawyer with one investment property might find that adding a second property requires them to refinance the existing loan to release equity and improve serviceability across both assets, rather than simply adding a new loan on top of the old structure.

Serviceability Differences Between Lenders

Not all lenders apply the same serviceability model. Some use HEM, others use a declared expense model with a minimum floor, and a few allow you to demonstrate actual living costs if they fall below the benchmark. The assessment rate also varies. While most lenders apply a 3% buffer, some assess at a flat rate of 7% to 8% regardless of the actual loan rate, which can be more or less favourable depending on where rates sit at the time.

For legal professionals with complex income structures, such as barristers or self-employed practitioners, lender choice has a material impact on the approved loan amount. A lender that assesses contractor income at 100% of the two-year average will approve a higher amount than one that discounts by 20%. Similarly, a lender that includes 100% of regular bonuses rather than 80% can add $50,000 to $100,000 in borrowing capacity for a senior lawyer.

Working with a broker who understands how each lender treats legal income structures means you are not limiting your borrowing capacity by applying to a lender whose policy does not suit your circumstances. This is particularly relevant for professionals considering LMI waivers or low deposit loans, where serviceability and deposit size both need to align with lender criteria.

Why Pre-Approval Figures Can Change at Final Approval

Pre-approval is conditional, and the final loan amount can be reduced if your financial position changes between pre-approval and settlement. Taking on a new car loan, increasing your credit card limit, or reducing your hours will all affect the final serviceability calculation. Lenders re-verify income and re-pull your credit file before settlement, and any material change triggers a reassessment.

A solicitor who received pre-approval for $650,000 in May and then financed a $40,000 vehicle in July might find that the final approved amount drops to $580,000 when they go to settle in September. The car loan added a $900 monthly commitment, and under the lender's serviceability model, that reduced capacity by roughly $70,000. The property contract is already exchanged, and the shortfall now requires either additional savings, a guarantor, or renegotiation with the vendor.

Call one of our team or book an appointment at a time that works for you to discuss your serviceability position before you start looking at properties, not after you have made an offer.

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