Irish Tax Deadlines – 2026 Reminder 

 🧾 Hit these dates to avoid penalties and keep your bookkeeping on track!

14th of each month – PAYE/PRSI/USC/LPT monthly returns & payments (for previous month). Extended to 23rd if filed & paid online via ROS.

 

  • 19th of each month – VAT-3 returns & payments (for VAT periods ending that month).
  •  01–23 of month – Corporation Tax returns & preliminary tax (varies by accounting period).
  •  23rd of the month – RCT monthly/quarterly returns & payments (if due).

📌 31st October 2026 –
 ✔️ File Income Tax Form 11 for 2025
 ✔️ Pay preliminary tax for 2026
 ✔️ Pay balance of 2025 tax liability
 (ROS online extends this date into mid-November if both filing & payment are done online).

Why care?
 Late filings or payments can mean interest charges and penalties — costing time and money.

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