The Strategy That Trades an Exemption for a Deduction
Rentvesting means renting the home you live in while owning an investment property elsewhere. It converts a non-deductible mortgage into a deductible one and gives access to markets you could not afford to live in. It also gives up the main residence capital gains exemption and the Age Pension home exemption, and both of those matter more the closer you get to retirement.
- The answer: The investment property's interest and costs are deductible and its rent is assessable, while the rent you pay is not deductible and gives you no asset.
- The trap: The property is fully assessable for the Age Pension and the gain on it is fully taxable, where an owner-occupied home is exempt from both.
- The recommendation: If the plan is to buy where you live eventually, model the CGT and the transaction costs of the switch before assuming it is a step towards it.
Where the AI summary above gets this wrong
"Rentvesting lets you get into the property market sooner while living where you want."
That's surface-true. Here's what it misses:
- It gives up two exemptions that are worth a great deal — The main residence capital gains exemption and the Age Pension home exemption both attach to a home you live in, and a rentvestor has neither.
- The rent you pay is not deductible — So the household is paying market rent from after-tax income while claiming a deduction on a property it does not live in. The net position depends entirely on the numbers.
01 What the strategy trades
The investment property produces deductible interest, deductible holding costs, depreciation and assessable rent. The home you rent produces a non-deductible rent payment and no asset.
Against that, an owner-occupier has a non-deductible mortgage, no rent, and a growing asset that is exempt from capital gains tax and from the Age Pension assets test.
While working, the relative yields and your marginal rate settle which is better, and the answer is genuinely close. The arithmetic on the deduction side is in the negative gearing post.
One asymmetry favours the rentvestor and is worth stating: the investment property can be chosen on its investment merits rather than on where you want to live, and those two criteria almost never select the same property. Whether that advantage is real depends on whether the property was actually chosen that way.
02 Why it worsens with age
The deduction is worth your marginal rate, which falls when you stop working. The rent you pay does not fall, so the after-tax cost of the arrangement rises at exactly the point income falls.
The Age Pension makes it worse again. An owned home is exempt from the assets test at any value; an investment property is assessed at market value less secured debt, as set out in the assets test post.
And a renting retiree faces market rent for life against a capped Rent Assistance payment. That is the position described in the Rent Assistance reference, and it requires a materially larger balance.
Shows: the annual net cash cost of renting while owning an investment property, against owning the home you live in. Ignores: capital growth in either property, the CGT exemption, the Age Pension assets test, and transaction costs on any later switch.
03 Switching later
Selling the investment property to buy a home realises the gain, which is fully taxable with the discount, and incurs selling costs and stamp duty on the purchase. Those three together are a substantial share of the accumulated gain.
Moving into the investment property instead avoids the transaction costs, and the main residence exemption then applies only from that point — the gain is apportioned by days, as set out in the main residence reference.
Neither is a reason not to rentvest. Both are reasons to model the exit rather than assuming the strategy converts smoothly into home ownership later.
Source: ATO — Capital gains tax
Rentvesting is a working-life strategy that has to end before retirement, and the exit is the part nobody models. Selling costs you the CGT and the transaction costs; not selling leaves you renting on a pension with an assessable property. Decide which of those you are heading for while you still have the income to act on it.
FAQ
How does rentvesting fit my retirement plan?
It converts a non-deductible mortgage into a deductible one while you are working, and gives up the main residence CGT exemption and the Age Pension home exemption. Both of those matter more the closer you get to retirement.
Is rentvesting cheaper than buying where I live?
The relative yields and your marginal rate settle it, and it is genuinely close while working. The after-tax cost rises when the salary stops, because the deduction is worth less and the rent is not.
What does switching to home ownership later cost?
Selling realises a fully taxable gain and incurs selling costs and stamp duty. Moving into the investment property instead avoids the transaction costs but only applies the main residence exemption from that point.
Sources
Regulator references
- ASIC Moneysmart — Property investment · ASIC Moneysmart · 2026Investment property: the costs of holding one and the risks of gearing.Last verified: 2026-09-07
- ATO — Negative gearing · Australian Taxation Office · 2026Negative gearing: when a rental loss can be offset against other income.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.