How we calculate your numbers
Last updated: 10 August 2026
The short version: every figure comes from records you entered or imported, run through the ATO rules in force for the financial year you are viewing. Vestly organises and calculates. It does not lodge your return and it is not a registered tax agent.
Where the figures come from
Nothing is invented. Rent, expenses, loan details, purchase costs and depreciation schedules are the ones sitting in your account. Change an input and every dependent figure recalculates from that input.
Tax outcomes apply the ATO individual income tax rates, Medicare levy thresholds and the low income tax offset for the financial year shown on the page, currently FY 2026-27. Capital gains use the 50% discount where a property was held longer than twelve months. Capital works (Division 43) and plant and equipment (Division 40) follow the rates for the relevant construction date and acquisition rules.
Confirmed actuals versus estimates
These are not the same thing and Vestly does not blur them. A figure taken from a receipt, statement or schedule you entered is a confirmed actual and is shown plainly.
A figure Vestly filled in for you - a typical-cost seed for a category you have not logged yet, or loan interest projected from your balance and rate because you have not entered the bank figure - is marked with an estimate badge wherever it appears, counted in the readiness summary, and listed for your review in the tax pack. If a page shows no estimate flags, nothing on it was estimated.
What Vestly does not do
It does not lodge anything with the ATO, does not prepare your return, and does not give personal tax advice. It cannot see circumstances it was never told about: other income, a spouse's position, trust or company structures beyond what you have set up, prior-year carried losses you have not entered, or the private-use split on a property you have not recorded.
That is why the output is built for you to check and lodge from. The pack shows every figure, the records behind it, and anything Vestly could not resolve on its own, so you can review it, verify it, and copy it into your own return. If you would rather involve a registered tax agent, sharing it takes one click - but the pack is finished work, not a pile of records for someone else to sort.
Keeping the rules current
Tax and duty rules change, usually on 1 July and at state budgets. Rate tables, stamp duty schedules and rental-tenancy rules are reviewed against the relevant revenue office or ATO source when they change, and each calculation module records the date it was last verified.
If you are viewing a past financial year, the rules applied are the ones that were in force for that year, not today's.
If something looks wrong
Tell us and we will check the calculation, not just the wording. Email hello@vestly.au with the page and the figure. A calculation error is a bug and gets treated as one.
See also our terms of service and privacy policy.