Capital Gains Tax Calculator (CGT) – Business Sale

Posted by: | July 2, 2026

Before You Sell Your Business

Selling a business? First, use our free business sale CGT calculator to get a fast, indicative estimate of the capital gains tax (CGT) you may need to pay on the sale. This business sale CGT calculator applies the current Australian tax rules and provides an estimate based on the information you enter.

Small Business CGT Concessions

In addition, the calculator considers the available small business CGT concessions, where applicable. These concessions can significantly reduce, defer, or even eliminate the capital gain for eligible business owners. However, strict eligibility rules apply, so the estimate should be used as a guide rather than tax advice.

2027 Capital Gains Tax Reform

Furthermore, the calculator includes the proposed 2027 capital gains tax reforms, allowing you to compare how the current rules differ from the announced changes. As a result, you can better understand the potential tax impact under both scenarios.

Estimate Your After-Tax Sale Proceeds

Ultimately, this business sale CGT estimator helps you estimate how much you may keep from the sale before you even list your business. Simply enter your numbers below to get started.

Business Sale CGT Estimator

Get an indicative estimate of tax payable on a business sale capital gain

Based on a market valuation at 1 July 2027, or the ATO’s apportionment formula. This calculator splits your gain by this percentage and applies the correct rules to each portion.
Capital Gain$0
Reductions Applied$0
Taxable Gain$0
Tax Payable$0
Estimated Net Retained$0
Disclaimer: This calculator provides a general, indicative estimate only, based on simplified assumptions about the Australian Capital Gains Tax rules, including proposed changes from 1 July 2027. Pre/post-2027 apportionment here uses a simple percentage split for illustration only; the actual apportionment method is set by the ATO and may involve formal valuation. The 15-year exemption, retirement exemption, and active asset reduction are each subject to strict eligibility conditions under Division 152 of the tax law which this tool does not verify. It does not account for capital losses, superannuation contribution timing, or your full personal circumstances. Gold Coast Business Brokers is not a registered tax agent. Always confirm your specific position with a qualified accountant or tax adviser before making any decisions based on this estimate.
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July 2, 2026 , , , , , , , , , , , , , Blog No Comments »

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