Ireland Corporation Tax Calculator 2020

The Ireland Corporation Tax Calculator is designed to allow free online calculations for resident and non-resident companies, banks / financial institutions and non-operating entities who have accrued income from profits in Ireland. The calculator allows corporation tax calculations for multiple scenarios including rates and allowances tailored for tax filing status, profit amounts and allowances in 2021.

This corporation tax calculation provides you with two important pieces of financial information, the first is the amount of corporation tax you owe on profits generated in Ireland, the second is the net amount of profit after tax which allows you to view exactly how your business investments in Ireland are performing. Once you have calculated the corporation tax due, you can print the document or email the corporations tax document to yourself or a colleague for later reference.

Ireland Corporation Tax Calculator 2021

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How to calculate Corporation Tax in Ireland

Ireland Corporation Tax Calculator. This image shows the Ireland flag and information relating to the corporation tax rate formula used for calculating Corporation Tax in Ireland using the Ireland Corporation Tax Calculator in 2021

You can calculate Corporation Tax in Ireland for resident and non-resident companies by multiplying the profits acrued by the appropriate corporation tax rate. We have included the Corporation Tax formula for Ireland so that you can calculate corporation tax manually or update your systems with the relevent corporation tax rates in Ireland. The latest corporation tax rates in Ireland for 2020 are displayed in the Ireland tax tables. For those who prefer to use the Ireland Corporation Tax Calculator rather than calculate the tax manually, we have included a step-by-step guide to using the calculator for Corporation Tax calculations (see the guides under "How to use the Ireland Corporation Tax Calculator").

Ireland Corporation Tax formula

Corporation Tax in Ireland is calculated using the following Corporation Tax formula:

Corporation Tax = a x (b / 100)


  • a = The net profit earned that is subject to tax in Ireland.
  • b = The relevent rate of corporations tax in Ireland associated with business type.

Corporation Tax Rates in Ireland

Corporation tax in Ireland is charged at a flat rate with the rate varying depending on the type of business subject to corporation tax. The table below defines the corporation tax rates applicable for each company type based on residence.

Ireland Corporation Rates in
12.5%0%Corporation Tax on Global Income (Trading Income)
25%0%Corporation Tax on Global Income (Income from Excepted Trade)
25%0%Corporation Tax on Global Income (Non-Trading Income)
12.5%12.5%Corporation Tax on Ireland Based Income (Trading Income)
25%25%Corporation Tax on Ireland Based Income (Income from Excepted Trade)
25%25%Corporation Tax on Ireland Based Income (Non-Trading Income)

Basis of Coporation Tax

Similar to PIT, Resident entities are taxed on worldwide income and non-resident companies are subject to tax only on revenue from within Ireland. Profits generated by residents on foreign source are taxed as per corporate tax regime.

How to use the Ireland Corporation Tax Calculator

You can view the calculator inline or full screen. The inline view displays the calculator surrounded by the normal menus and links to other tools and supporting information. The full screen view removes or the unnecessary information so you can focus solely on using the Ireland Corporation Tax Calculator. The following step-by-step guides to calculating corporation tax online with the Ireland Corporation Tax Calculator covers all the functions within the corporation tax calculator:

How to complete a Corporation Tax Calculation

  1. Select Normal View or Full Screen View.
  2. Select Resident Company on Non-resident Company
  3. Confirm the type of company that you run in Ireland for Corporation tax purposes.
  4. Enter the total amount of Global Income that is profit.
  5. Enter the total amount of Income generated in Ireland that is profit.

The Corporation Tax Calculator will then automatically calculate the tax due based on the details entered.

More Good Calculators for Ireland

If you found this information about Corporation Tax in Ireland useful and liked our free online corporation tax calculator for Ireland then you will probably find the following calculators and supporting Ireland tax tables useful.