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US Stocks Capital Gains Calculator for Australian Investors

Stop wasting precious time and money. Calculate your capital gains taxes and optimize your investment strategy with our comprehensive US stock tax calculator for Australian investors.

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Tax Optimization

Minimize your Australian CGT liability with a smart AI algorithm favouring older parcels with higher prices

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Currency Conversion

Automatic USD to AUD conversion using historical RBA exchange rates

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Effortless CGT Calculations

Heavy lifting done for you. Just upload your broker statements (csv/html) and get CGT summary in seconds for your review

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Secure Processing

Files are processed securely and temporarily. We automatically delete your data after processing - never stored permanently

Why I Built This

Roi Fine - Founder

Hi, I'm Roi Fine 🔗 LinkedIn

Former Product Manager at Atlassian • Economics Graduate • Professional Trader • 20+ Years US Markets Experience

The Problem Hit Me Personally:

When I moved to Australia 8 years ago, I was shocked by how complex US stock CGT calculations were. Coming from a 20+ year background as a professional trader and long-term US markets investor, plus my product management and economics experience, I thought "surely there's a better way?"

The Impossible Choice:

I considered switching to Australian stocks, but let's be honest - the returns and opportunities just aren't the same. So like many of you, I stuck with US markets via CommSec International.

The Expensive Reality:

Every tax season, I'd pay hundreds of dollars to tax agents, only to be told: "You need to organize all this trading data yourself first." Seriously? I'm paying you to tell me to do the hard work myself?

This Year, I Said Enough:

After spending my 8th year manually organizing CommSec tax files in spreadsheets, I decided to use my product management, economics, and professional trading experience to build a solution. With a name like ROI, I've always been passionate about maximizing returns - and I realized complex tax prep was destroying everyone's ROI! Not just for me, but for every Australian investor facing this same frustrating problem.

"If we're going to invest in US markets for better returns, we shouldn't have to suffer through weeks of manual tax prep every year."

This tool represents hundreds of hours of development to save our community thousands of hours of manual work. Let's spend our time analyzing investments, not organizing spreadsheets.

Latest Insights

3 CGT Optimization Strategies That Could Save You Thousands on US Stocks

If you're an Australian investor trading US stocks, you're probably paying way more tax than you need to. I learned this the hard way during my first US stock tax season after manually calculating CGT on 47 transactions.

Read more →

Calculate Your US Stock Taxes

Enter your information to get early access to our Australian US stocks CGT calculator and eliminate manual currency conversion work.

🔒 Your Data is Secure Files are processed temporarily and automatically deleted after calculations. We never store your trading data permanently.