A Fixed Repayment Against an Income That Just Fell
A mortgage that is still there on the day the salary stops has to be serviced from retirement income. The interest is not deductible, the debt does not reduce your assets test position because the home is exempt anyway, and refinancing is difficult without an income. It is the single most common reason a retirement plan that looked adequate is not.
- The answer: The repayment continues out of retirement income, and the debt against an exempt home gives no assets test benefit.
- The trap: Refinancing or extending a loan without employment income is difficult, so the flexibility that existed while working is largely gone.
- The recommendation: Model the repayment against retirement income before setting a retirement date. Clearing it with a super lump sum is frequently the right answer and it has to be planned.
Where the AI summary above gets this wrong
"Use your super to pay off your mortgage when you retire."
That's surface-true. Here's what it misses:
- It is frequently right and it is not automatic — A lump sum used to clear a mortgage removes a guaranteed cost equal to the interest rate, but it also removes the balance from a nil-tax earnings environment.
- It interacts with the Age Pension in a useful direction — Money spent on the principal home leaves the assets test permanently, so clearing a mortgage converts assessable super into exempt home equity.
01 Why the debt is more expensive after you stop working
The interest on a home loan is not deductible at any age, so the rate is the real cost. What changes at retirement is the income servicing it: a fixed repayment against an income that has fallen and is now partly means tested.
The debt also does nothing for the assets test. The home is exempt at any value, so a loan secured against it reduces the value of an asset that was not being counted — the position described in the home exemption reference.
And the flexibility narrows. Extending a term, refinancing to a better rate, or drawing on redraw all become harder without employment income, so the options that existed at 58 may not exist at 68.
02 Clearing it with super
A lump sum from super used to repay the mortgage removes a guaranteed cost equal to the interest rate — a certain return that few conservative portfolios match. After 60 the withdrawal is tax-free from a taxed fund.
Against that, the money leaves an environment where earnings are untaxed in retirement phase. The comparison is the interest rate against the after-tax return the balance would otherwise have earned, and it is worked through in the mortgage versus super post.
The Age Pension consideration pushes in favour of clearing it. Super is an assessable asset once you reach Age Pension age and home equity is not, so the repayment converts assessable capital into exempt capital permanently.
Shows: the interest saved by clearing a mortgage with a super lump sum, against the untaxed earnings the same balance would have produced inside super. Ignores: the Age Pension gained by converting assessable super into exempt home equity, the minimum drawdown, and any change in interest rates.
03 If it cannot be cleared
Downsizing releases equity and has its own consequences, including the assets test treatment of any retained proceeds — the trade-off is in the home sale reference.
The Home Equity Access Scheme can service a loan from a government-rate advance against the same property, which substitutes a compounding debt for a repaying one. That is sometimes right and it is not obviously so.
Working longer is the other answer, and for a mortgage of moderate size it is frequently the most efficient one — it shortens the retirement, lengthens the accumulation and clears the debt from income rather than from capital.
The mortgage that survives the last pay cheque is the thing I would deal with before setting a retirement date. Everything else in a retirement plan flexes — spending, travel, the drawdown rate — and the repayment does not. Model it against the income you will actually have before deciding when to stop.
FAQ
How do rising interest rates affect my retirement if I still carry a mortgage?
The repayment rises against an income that is fixed or means tested, and refinancing is harder without employment income. A mortgage carried into retirement is the most common reason an otherwise adequate plan is not.
Should I pay off my mortgage before retirement?
Usually yes. The interest is not deductible, the debt gives no assets test benefit against an exempt home, and clearing it converts assessable super into exempt home equity.
Can I refinance after I retire?
It is considerably harder. Lenders assess serviceability against income, and retirement income is lower and partly means tested, so the flexibility that existed while working is largely gone.
Sources
Regulator references
- ASIC Moneysmart — Save for a house deposit · ASIC Moneysmart · 2026Saving a house deposit: the target, the timeline and the accounts to use.Last verified: 2026-09-07
- ASIC Moneysmart — Retirement income · ASIC Moneysmart · 2026The sources of retirement income in Australia and how they combine.Last verified: 2026-09-07
Calculator unit tests · the assertions this page's worked example is checked against, and their last result
Changelog
- 2026-09-07 — initial publish (new format)
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Jordan Reeves
Founder of Talk Through Wealth. A software engineer for over a decade before turning to retirement planning, Jordan built the projection engine after watching family members get fragmented, country-by-country advice that never reconciled. He writes about retirement the way the engine computes it: month-by-month, lifetime-long, and skeptical of any rule of thumb that hasn't been run through the math.