Rentvesting vs buying a home: what actually changes financially?

You either pay market rent and hold an investment, or you pay a home loan and hold the dwelling you live in. Tax, first-home rules and loan type then diverge.

On the rentvest path you have two addresses. Cash each year is extra savings, plus rent collected on the investment, minus investment opex, minus investment interest, minus the rent you pay to live. On the buy-to-live path, cash each year is extra savings minus the home-loan payment. There is no rental income on the home you occupy.

Inside Districts, the investment loan stays interest-only and the home loan amortises over 30 years. Equity on the home path can rise without a price rise. Equity on the rentvest path, in the model, does not get that principal reduction. See interest-only versus principal-and-interest.

A $700-a-week two-bedroom rental next to a $1.3 million four-bedroom purchase is not a clean financial test. Part of the extra cost of buying is more housing. The RBA compares similar properties. Use the Districts “Home you would live in” fields for an equivalent dwelling, then add the investment.

An owner-occupied main residence is generally CGT-exempt if it qualifies. An investment is not. From 2027-28, excess deductions on many established investments acquired after 12 May 2026 cannot reduce salary. The calculator shows neither effect. Read negative gearing after 2026.

Buying the investment first can change later first-home grant and duty eligibility. That test differs by state and territory. It can dominate a small pre-tax gap. The dedicated page is first-home buyer or rentvestor.

• Comparing rent with the home-loan repayment and stopping there.
• Mixing a small rental with a large purchase and calling the difference “rentvesting wins”.
• Reading a 15-year interest-only investment line as your actual loan.
• Ignoring the main-residence CGT exemption because the pre-tax columns were close.
• Skipping first-home rules because the calculator does not apply them.

Same savings, same horizon, same growth and rate assumptions. Investor duty on the investment, owner-occupier duty on the home, first-home flag off. Leftover cash compounds at the ETF rate even on this narrower reading: that sleeve is leftover cash, not the third strategy. Negative leftover cash is an unfunded gap.

It does not establish that you should rentvest, that the investment is a sound lot, or that the after-tax result will keep the same order. It does not approve a loan. Lifestyle control, pets and tenure are outside the number. The longer guide adds the ETF opportunity-cost column if you need it.

Use equivalent housing in the home fields. Replace duty with the stamp-duty calculator for each state and use. Obtain actual loan quotes for an investor interest-only product and an owner-occupier principal-and-interest product. Check first-home eligibility you could lose. Then stress growth, rate and rent. If you also want a non-property use of the same savings, return to the three-path guide.