Source: https://rivet.global/blog/ireland-corporate-tax-rate-12-5-and-15
Published: 2026-08-18 · Updated: 2026-08-18 · By Alexia M.

# Ireland corporate tax rate: 12.5%, 25% and the 15% minimum

Irish corporation tax in 2026: 12.5% on trading income, 25% on non-trading income, the 15% minimum for large groups, preliminary tax dates and currency rules.

## Key takeaways

- Irish corporation tax is 12.5% on trading income and 25% on non-trading income such as most investment income.
- Groups with consolidated revenue of €750 million or more pay an effective minimum of 15% under Pillar Two from 2024.
- Small companies pay preliminary tax and file the CT1 return nine months after year end, by the 23rd of that month.
- Companies can calculate tax in a functional currency other than the euro in some cases.

"Ireland corporate tax rate" comes with "15", "2026" and "rate increase" in Google's suggestions. The 12.5% rate has not changed for most companies. The 15% applies to very large groups.

## The rates

| Income | Rate |
|---|---|
| Trading income | 12.5% |
| Non-trading (passive) income | 25% |
| Large groups in scope of Pillar Two | 15% minimum effective rate |

A Cork software company with €400,000 of trading profit pays €50,000.

## Who is in the 15% band

Groups with consolidated revenue of €750 million or more. Ireland applies a qualified domestic top-up tax so in-scope groups pay at least 15% here. SMEs are not affected.

## Dates for small companies

- Preliminary tax: by the 23rd of the 11th month of the accounting period.
- CT1 return and balance: by the 23rd of the 9th month after year end.

## Currency

Irish companies often have dollar revenue. Tax is computed in euros unless the company's functional currency is another currency. Keep each conversion's rate and date.

## Paying into Ireland: the local rail

| What | Detail |
|---|---|
| Local rail | SEPA Instant Credit Transfer |
| Run by | European Payments Council scheme, run by each bank |
| Settlement | Under ten seconds, 24/7 |
| Published fee | By the EU Instant Payments Regulation, no more than the bank charges for a standard SEPA transfer |

Source: [European Payments Council: SEPA Instant Credit Transfer](https://www.europeanpaymentscouncil.eu/what-we-do/sepa-instant-credit-transfer). Checked when this guide was last updated; the scheme's own page has the current figures.

## Where Rivet fits

Rivet records each receipt, conversion and payout with its rate and date and exports statements. EUR and GBP details come on Growth; USD on every plan. Check our eligibility list for Irish companies. Rivet is not a bank; regulated partner institutions hold the funds. See [Irish SaaS with dollar revenue and euro costs](/blog/ireland-saas-dollar-revenue-euro-costs).

## Questions

### What is Ireland's corporate tax rate in 2026?

12.5% on trading income, 25% on non-trading income, and a 15% minimum effective rate for large groups in scope of Pillar Two.

### Who pays the 15% rate?

Groups with annual consolidated revenue of at least €750 million in two of the previous four years. Most SMEs are not affected.

### When is corporation tax due?

Small companies pay preliminary tax by the 23rd day of the 11th month of the accounting period and file the CT1 by the 23rd day of the 9th month after year end.

### Can an Irish company keep accounts in dollars?

Yes, if its functional currency is the dollar. Tax is then computed in that currency and converted.