Property Gains Tax Calculator Australia

Property Gains Tax Calculator by TaxTank is more than a simple calculator. It’s Australia’s first property tax software built specifically for individual property investors.

Track purchase costs, renovations, depreciation, ownership structures and selling expenses while estimating your potential capital gains tax position before you sell. With live tax insights and year-round property tracking, you’ll always know where you stand.

See the tax impact before you sell, not after.

The smarter property gains tax calculator for Australian investors

Most property gains tax calculators only provide a rough estimate based on a handful of numbers.

TaxTank goes further.

Because your capital gain can be affected by:

TaxTank helps you track the information needed to calculate your property gain accurately, while also showing how a future sale could impact your overall tax position. TaxTank includes built-in CGT tools designed specifically for Australian property investors

We have used Xero for my properties but for specific property functionality TaxTank is better and the pricing far outweighs what we were paying. If I could give 10/10 I would. Thank you so much!!!
Bel Austin

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More than a property gains tax calculator

Most property gains tax calculators only provide a one-off estimate based on the numbers you enter today.

TaxTank is different. It’s the only software built specifically to help Australian property investors manage their investment property tax position year-round, not just when they’re preparing to sell.

As transactions flow into the platform, TaxTank tracks your rental income, expenses, depreciation, borrowing costs, capital improvements and property performance in real time. This means you’ll always have visibility over the factors that can impact both your annual tax position and future capital gains tax obligations.

Instead of waiting until tax time or relying on spreadsheets and manual calculations, you’ll have a complete picture of your investment property’s tax position whenever you need it. The result is better planning, fewer surprises and more confidence when making property investment decisions.

Financial Oversight

Get a full view of your financial position all year round to make smarter money decisions.

Live Bank Feeds

Connect your bank for automatic transaction tracking with Open Banking.

Automated Tax Tools

Set and forget with smart rules that automatically allocate income and expenses.

Depreciation & CGT Tools

Access hassle-free tools to help you unlock tax benefits with confidence.

Maximise Deductions

Get real-time insights into your tax position to identify deduction opportunities.

Easy Collaboration

Share access with co-owners, accountants and advisors to streamline compliance.

Secure Document Storage

Attach receipts, warranties and statements to create an organised digital audit trail.

Peace Of Mind

Know your tax position any day of the year—no more last-minute stress.

Capture every deduction automatically

Accurate record keeping is essential for property investors, particularly when it comes to maximising deductions and calculating capital gains tax correctly when a property is sold.

TaxTank automatically imports transactions from your bank accounts using Open Banking technology, helping you keep track of rental income, property expenses, loan costs and other investment-related activity throughout the year. You can store receipts, attach supporting documents and maintain a complete audit trail without relying on spreadsheets or paper files.

By keeping everything organised in one place, you’ll have the information you need for tax time, future property sales and ongoing portfolio management, without the usual last-minute scramble to gather records.

Make better property decisions

A property gains tax calculator can help you estimate the tax payable on a future sale, but it’s only one piece of the puzzle.

TaxTank helps you understand the complete financial picture of your property portfolio by bringing together tax, cash flow, equity and investment performance in one place. You’ll be able to monitor how each property is performing, track the impact of deductions and depreciation, and see how changes to your portfolio could affect your overall tax position.

Whether you’re planning your next purchase, reviewing the performance of an existing property or considering a future sale, TaxTank gives you the insights needed to make smarter property investment decisions with confidence.

Built specifically for Australian property investors

TaxTank was designed specifically for the Australian tax system and the needs of property investors.

From automated bank feeds and rental property tracking through to depreciation schedules, capital gains calculations, document storage and real-time tax forecasting, every feature is focused on helping investors stay organised and make better financial decisions throughout the year.

Whether you own one property or twenty, TaxTank gives you the tools to manage your portfolio with confidence. You can also group your properties in different portfolios to ensure you have complete management and oversight of equity, growth and property tax – no matter what your structure is.

Investment Properties

Track income, expenses and performance by property and ownership type.

Share Accommodation

Calculate deductions correctly with tools built for shared spaces.

Vacant Land

Capitalise expenses automatically to minimise Capital Gains Tax.

Trusts & Companies

Centralise entity-managed properties for seamless oversight.

Principle Place of Residence (PPOR)

Record home expenses now, and convert to investment later if needed.

Track non-personal business activity

TaxTank makes it easy to manage property-related income and expenses that don’t belong on your personal tax return. Using our Sole Tank module, you can track commercial property, rental properties, or side business ventures in one place without affecting your personal tax summary.

With Property Tank and Sole Tank working together, you get a complete picture of your property investments while keeping your personal tax summary clean and accurate.

Don’t wait until tax time to work our your property gains. Track your investment property, calculate your capital gains tax and understand your tax position before you sell.

It's easy to get started

Getting started with TaxTank is simple and affordable. For just $15/month, you get access to all the essential tools you need to manage your property portfolio and tax.

PROPERTY TANK

Simply add Property Tank so you can monitor your whole property portfolio in one place. You can manage up to 5 properties for only $15* a month.

$15/month

Paid Annually

ADDITIONAL

PROPERTIES

Have more than 5 properties? No problem, you can add as many as you like with our property add-on.

$3/month

Paid Annually

Trusted by Property Investors across Australia

Rated 5 out of 5

“I have been using TaxTank for over a year now to manage our property portfolio. We now proactively manage our income and expenses using the live bank feed allocations in TaxTank so there is little hands-on time needed from me.

It's literally about 10 minutes a week to allocate transactions and I'm on top of my paperwork which means no more spreadsheets or tax time stress.”

Tammy Van Diest

“Using TaxTank has ensured we have reduced costs and effort at the end of financial year, minimised tax paid as we can now track all expenses and income in one single system and peace of mind knowing we can find everything in one secure place.”

Amanda Thomas

“Ever since I've been using TaxTank, it has made life so much easier. I can't say more than this amazing feature of live bank feeds. It is amazing and a game changer! This has made almost the near impossible of recording all bank transactions now very possible. Another feature I enjoy using is the forward outlook on the depreciation of a property once the initial inputs are stored. It has been an enjoyable and pleasurable experience using TaxTank. Highly recommend.”

Terence Wee

“TaxTank has provided me with a better insight to my portfolio from my expenses management, income and the expected tax return at the end of the financial year ”

George Jimmy Winaulin

“TaxTank can integrate with my accountant, manage multiple property assets, input and manage depreciation schedules, manage vehicle logbook entries, provide tax forecasting for the financial year, connect to my Australian bank account with automatic bank feeds, generate useful reports, and upload documents. I would highly recommend TaxTank to anyone looking for a comprehensive and easy-to-use personal finance software package.”

Stratos Patsikatheodorou

“Anyone who has an income and especially anyone with investment properties will find TaxTank an effective, reliable and convenient tool to use.”

Peter Cullen

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Frequently asked questions

How do I calculate property gains tax ?

TaxTank helps you manage your property finances throughout the year by tracking income, expenses, deductions, depreciation, capital gains and your estimated tax position. Many investors still choose to use a property accountant at tax time, but TaxTank ensures everything is organised and ready before lodging.

Does TaxTank calculate the 50% CGT discount?

Yes. TaxTank applies the current capital gains tax rules, including the 50% CGT discount for eligible assets held for more than 12 months, along with other relevant property tax calculations and adjustments.

Because TaxTank stores the underlying property information, ownership periods, purchase costs, capital improvements, depreciation adjustments and ownership structures, it can continue to apply the correct tax treatment as tax laws evolve. If future property tax or capital gains tax changes are introduced and grandfathering provisions apply, TaxTank is designed to retain the historical information needed to support those rules, helping ensure your calculations remain accurate without you needing to manually track legislative changes over time.

Can I include renovation costs?

Yes. Capital improvements can form part of your property’s cost base and may reduce your property capital gain.

Does depreciation affect CGT?

Yes. Depreciation claimed during ownership can affect your property’s cost base and Capital Gains Tax (CGT) calculation. TaxTank accounts for these adjustments.

Can I calculate property gains before I sell?

Yes. TaxTank allows you to model potential capital gains and understand the tax impact before selling.

Don’t miss out on property tax opportunities.

Try TaxTank for a free 14 day trial to feel confident about your tax position and transform the way you think about property tax.