Upload your broker statement, select your country — get your capital gains tax calculated instantly. Free, private, no signup required.
Between misapplied tax rates, missed loss deductions, unclaimed withholding credits, and guesswork at filing time — money quietly leaves your account that was never owed in the first place.
When you're unsure of the exact rules, you round up to be safe. That "safe" choice costs you hundreds — sometimes thousands — every year.
Every losing position you held is a legitimate deduction. But without a full breakdown, those losses disappear into your statement unseen.
Generic calculators don't account for your specific jurisdiction — withholding credits, allowances, inclusion rates. One wrong assumption changes everything.
TaxStock calculates your investment tax the right way — applying the exact rules your country requires, factoring in every loss, every withholding credit, every applicable allowance. You'll know precisely what you owe the authorities. No guessing. No overpaying. 100% compliant with your local tax law.
Three simple steps to know your tax
Export your Activity Statement from Interactive Brokers as a CSV and upload it here. Processed entirely in your browser.
Choose your country of tax residence. We apply the correct capital gains tax rules automatically for your jurisdiction.
Instantly see your total gains, losses, taxable income and estimated tax owed — broken down per stock and dividend.
Supported Brokers
All calculations happen in your browser. Your data never leaves your device.
| Symbol | Date | Qty | Proceeds | Realized P/L | Est. Tax |
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