Corporate Tax Calculator

Model your projected Irish corporation tax liability based on the split between active trading income (12.5%) and passive investment income (25%).

Net profit from the core trade of goods/services.

Interest, royalties (non-KDB), rental income.

Check this if your global consolidated group revenue exceeds €750M.

Liability Breakdown

Passive Tax (25%)
Total CT Liability
Effective Tax Rate

Assumptions & Limitations

This is a simplified modeling tool. It assumes all stated income is fully taxable in the current accounting period and does not account for capital allowances, loss relief carried forward/back, R&D tax credits, or the Knowledge Development Box (6.25%). Always consult with an Irish-registered tax advisor (AITI CTA) before making financial decisions.