Complete — Australian Property Investment Calculator (Google Sheets)

"30-year scenario modelling + up to 5 properties + rate scenarios + supported-FY rate updates. Scenario-modelling tool only — not tax or financial advice."

Property Tax Tools Complete is the scenario-modelling tier for investors who want long-horizon projections and portfolio-level comparisons to discuss with their accountant or adviser.

What you get:

- Everything in Pro, plus:

- 30-year projection

- Compare up to 5 properties + portfolio summary view

- Interest rate scenario modelling + rental increase modelling

- Rent/buy cost scenario worksheet with a user-entered non-property return assumption

- PAYG variation letter template

- Tax year rate updates for the supported financial years (see the Getting Started tab)

Requirements:

Google Sheets (free with a Google account). You'll receive a link and click "Make a copy".

Not Suitable For:

SMSF property or limited recourse borrowing, trust/company/partnership ownership, foreign residents or surcharges not modelled, subdividing or development, mixed-use property, Airbnb/short-stay GST, property flipping or trading stock, family-law settlements, deceased estates, related-party transfers, private rulings, objections, or tax-return lodgement positions. In those situations, seek professional advice.

Disclaimer:

This spreadsheet is an educational scenario-modelling tool. It is general information and estimates only — not tax, financial, legal, lending or investment advice, and not a recommendation to buy, sell, hold, borrow, refinance, invest, claim a deduction or lodge a return. Outputs depend on the inputs and assumptions you enter. We do not review your inputs, verify your assumptions, or assess whether the spreadsheet is suitable for you. Consumer guarantees under the Australian Consumer Law are not excluded — see propertytaxtools.com.au/refund/ for how we handle material formula errors. Speak with a registered tax agent, financial adviser or lawyer before acting on any output. Verify with ATO guidance and/or your accountant.