In development · Founding member spots open

See exactly which deductions your last tax return is likely missing, before you pay for a full schedule

For residential property investors doing their own tax prep or working with a general accountant — built around the ATO's own list of the most common landlord mistakes.

Founding members get early access and a locked-in founding price.

Deducto Concept preview

Deduction check

Where your last return likely under-claimed, based on the ATO's own common-error list.

Get my report
Likely missed this yearA$4,200
Common errors checked6
Properties reviewed1
  • Capital improvement claimed as a repairNew patio, 2024 — should be depreciated, not expensed
    Likely missed
  • No depreciation schedule on fileProperty purchased 2022, still not claimed
    Likely missed
  • Investment loan interest, mixed useRedraw used partly for personal expenses
    Check further
  • Basic running costsRates, insurance, property management fees
    Looks correct

Sound familiar?

What people are putting up with today

  • Nine out of 10 landlords make mistakes on their tax returns, and incorrect claims across the whole landlord population could be costing Australia's tax take $1.2 billion.

  • A common mistake: claiming a capital improvement, like a new patio or a remodelled kitchen, as an immediately deductible repair instead of depreciating it.

  • 80 per cent of property investors are failing to maximise the deductions claimed from property depreciation, missing out on thousands of dollars.

How Deducto works

Deducto is a short property deduction check built around the ATO's own list of the most common landlord mistakes. Answer a few questions about your property and how you've claimed it, and Deducto flags specifically what's likely missing or misclassified, with a dollar estimate — then points you to a DIY fix or a qualified quantity surveyor, rather than guessing.

  1. 01

    Answer a few questions about your property and how your last return claimed it — purchase date, renovations, loan use, existing schedule or none.

  2. 02

    Deducto checks your answers against the ATO's own published list of the most common landlord errors and depreciation misses.

  3. 03

    You get a specific, dollar-estimated list of what's likely wrong or missing, and whether the fix is a DIY amendment or a proper quantity surveyor schedule.

In their words

What people are saying

Real quotes from public reviews and forums, with names removed. None are about Deducto — it isn't available yet.

Nine out of 10 landlords were making mistakes on their returns
ATO finding, ABC News

Founding access

Apply for founding access

Deducto is opening to a small group of founding members first.

  • Early access before public launch
  • A locked-in founding price
  • A direct say in what gets built

Deducto is being built now. Founding members get access first and help shape it. Applying is free and there's no obligation to buy.

Privacy notice: we collect your email (and your answer above, if you give one) solely to contact you about founding access to Deducto. We don't sell or share your information with third parties, and we won't use it for anything else. You can ask us to delete your details at any time by emailing hello@thinksimple.app.

Get involved

Want to be part of Deducto?

Whether you'd invest, sell it or bring know-how from this industry, tell us how you'd like to be involved. We review every message and reply if there's a fit.