Capital Gains Tax (CGT) Calculator
How Capital Gains Tax Works in Ireland
Capital Gains Tax (CGT) is a tax on the profit you make when you sell or dispose of a chargeable asset such as property, shares, or other investments. It’s not the full sale price that’s taxed, but the gain (Sale price – purchase cost – allowable expenses = taxable gain). Reliefs, exemptions, and accurate record-keeping can help reduce your final CGT bill.
Sale Proceeds:
Sales Fees & Costs:
Net Sales of Proceeds:
Cost Price:
Purchase Fees & Costs:
Total Cost of Asset:
Net Profit:
Less Personal Exemption:
Net Taxable Gain:
CGT Liability @ 33%:
Capital Gains Tax Calculator
Our Capital Gains Tax calculator helps you estimate the CGT due on the sale of an asset. Just input:
The tool will calculate the net gain, apply your €1,270 exemption, and show the estimated tax owed at 33%. It’s a quick way to understand your liability — but remember, it’s an estimate, not a substitute for full tax advice.
Reliefs, Exemptions & CGT Rates
The standard CGT rate is 33%, but there are valuable reliefs that can lower your tax:
You can also carry forward capital losses to offset future gains — helping to reduce your tax bill in later years.
Important CGT Payment & Filing Deadlines
There are two key CGT payment periods:
You must also report the gain in your annual Form 11 tax return, which is due by 31 October (or mid-November if you file online through ROS or a provider like FastTax.ie). Missing these deadlines may result in penalties and interest.
