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SMSF vs Paying Off Your Mortgage

The question everyone asks at the BBQ. The answer is more interesting than you think.

By Adel Pearce · Last updated: 2026-03-29 · 7 min read

The BBQ Question

You're standing at a mate's BBQ. Someone says they're using their super to buy property. Your first thought: "But I haven't even paid off my own house yet. Should I worry about super investing?"

It's the #1 internal debate for most Australians in their 40s. And the honest answer is: it's not an either/or question. It's a "what order and how much?" question.

What Most People Get Wrong

They think their mortgage interest rate and super return rate are the same calculation. They're not. Super contributions are taxed at 15% going in. Mortgage payments are from after-tax income - which means you're paying with dollars that have already been taxed at 32.5%, 37%, or more (Source: ATO individual income tax rates, FY2025-26).

Not comparing apples with apples. Comparing apples with oranges - and most people don't realise.

According to Adel Pearce: "The real question isn't 'should I invest?' - it's 'what is the cost of not investing while I wait?'"

When Paying Off Your Mortgage First Makes Sense

Your mortgage rate is very high and your combined super is still building

You have no emergency fund outside super

Debt keeps you up at night (emotional factors are real and valid)

You're under severe financial stress and the mortgage is a burden

Not always wrong. Sometimes paying down the mortgage is the right move.

When SMSF Investment Makes Sense Alongside Your Mortgage

You have sufficient combined super and the mortgage is manageable

You have 10+ years until retirement

Rental income from the SMSF property covers the SMSF loan repayments

Your compulsory super contributions are going in anyway - the question is what they're invested in

The Third Option Nobody Talks About

You don't have to choose. Many Delphi & Co clients maintain their mortgage AND invest through SMSF simultaneously. The super contributions are compulsory anyway - the question is what they're invested in. A default fund earning average returns? Or a real property generating rental income and capital growth at concessional tax rates?

Not doubling down. Making sure both sides of your financial life are working.

Work Out What's Right for You

This is general information, not personal financial advice. The Delphi Scorecard helps you understand your position, and if it makes sense, we can walk through the numbers in a free strategy chat.

For the full picture, read our complete SMSF property guide or check out the full cost breakdown.

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General information only. Not personal financial advice.