16/08/2026
Sacrificing your bonus into super before a loan application could quietly cost you access to a property worth far more than the tax you saved.
When a lender calculates your borrowing capacity, they work from your assessable income, which is the income that actually appears on your payslip. If you've directed a $20,000 bonus into super through salary sacrifice, that amount may not show up as received income, meaning the lender could be assessing you on $120,000 when your real earning capacity is closer to $140,000.
That $20,000 gap can translate to roughly $80,000 to $100,000 less in borrowing capacity depending on the lender and your existing financial commitments. On a 30-year loan, that kind of reduction could push a property out of reach entirely or force you into a significantly lower price bracket.
Here's where it gets interesting though. Many major Australian lenders, including some of the Big Four, may add voluntary super salary sacrifice back into your assessable income during assessment. Because the arrangement is entirely voluntary, credit assessors generally recognise that you could stop contributions at any time to service a loan, so some lenders won't penalise you for it.
The tax argument for salary sacrificing is real, a $20,000 concessional contribution taxed at 15% rather than your marginal rate could save you $6,000 or more. But if a home loan application is on the horizon within the next year or two, it's worth understanding how your bonus structure could affect what you're able to borrow before making that call.
Content is general information only and not personalised credit advice. Loan eligibility, rates, repayments, fees and lender policies vary and can change. Speak with a licensed broker for advice tailored to your situation.