Business Days in October 2025 for Ireland
October 2025 has 22 working days under the Irish public holiday calendar. October 2025 contains one Irish public holiday on a weekday. The month covers 31 calendar days, of which 8 are Saturday and Sunday. That count drives invoice cycles, payroll runs, and any contract that defines deadlines as a number of working days in Ireland.
working days
22
Calendar Days
31
Weekend Days
8
public holidays
1
Work Weeks
4.4
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 wknd | 5 wknd | ||
6 | 7 | 8 | 9 | 10 | 11 wknd | 12 wknd |
13 | 14 | 15 | 16 | 17 | 18 wknd | 19 wknd |
20 | 21 | 22 | 23 | 24 | 25 wknd | 26 wknd |
27 October Bank Holiday | 28 | 29 | 30 | 31 |
public holidays in October 2025
Ireland October deadlines
Form 11 income tax pay-and-file deadline: October 31 for paper returns, mid-November (Revenue announces the exact ROS extended date annually) for ROS filers. Form CT1 for January year-end companies is due October 23. VAT3 for September monthly filers is due October 19 or October 23 via ROS. October Bank Holiday on the last Monday closes banks. Budget Day announcement, traditionally mid-October, sets the tax framework for the following year.
Day-of-Week Distribution
The count of each weekday in October 2025. Useful for shift scheduling, weekly recurring billing, and any rota that depends on a specific day of the week landing in-month.
| Day | Count |
|---|---|
| Monday | 4 |
| Tuesday | 4 |
| Wednesday | 5 |
| Thursday | 5 |
| Friday | 5 |
| Saturday | 4 |
| Sunday | 4 |
Ireland reporting cycles and business-day rules
Irish business-day cycles align with Revenue's VAT3 bimonthly cutoffs (paper on the 19th, ROS extended to the 23rd) and PAYE monthly remittance on the 14th of the following month for most employers, with the PAYE Modernisation system reporting in real time on each pay event. The Central Bank of Ireland operates TARGET2-IE for euro wholesale settlement on TARGET2 business days, which exclude bank holidays. Form CT1 corporation tax is due nine months after the company year-end. The European Communities (Late Payment in Commercial Transactions) Regulations 2012 set 8% above the ECB main refinancing rate as the statutory late-payment interest rate, payable from day 31 after invoice for B2B transactions.
October 2025 working days compared by country
Working-day counts vary across countries because each country observes its own public holidays. The table below puts Ireland alongside the other ten supported holiday calendars for October 2025.
| Country | Business Days | Holidays this month |
|---|---|---|
| 🇺🇸United States | 23 | None |
| 🇬🇧United Kingdom | 23 | None |
| 🇨🇦Canada | 22 | Thanksgiving |
| 🇦🇺Australia | 23 | None |
| 🇮🇳India | 21 | Gandhi Jayanti / Dussehra, Diwali |
| 🇵🇭Philippines | 23 | None |
| 🇫🇷France | 23 | None |
| 🇩🇪Germany | 22 | Tag der Deutschen Einheit |
| 🇯🇵Japan | 22 | Sports Day |
| 🇲🇽Mexico | 23 | None |
| 🇸🇬Singapore | 22 | Deepavali |
How October 2025 compares year over year
October 2024 also had 22 working days, so the working capacity is unchanged year over year. On the surrounding months, September 2025 has 22 working days and November 2025 has 20. Looking forward, October 2026 has 21 working days under the same Irish public holiday calendar.
Using this calculator in Ireland
A Dublin treasury operator at an international tech HQ uses the 22-day October 2025 count to align SEPA Credit Transfer cycles with Central Bank of Ireland TARGET2-IE clearing and prompt-pay windows under the European Communities (Late Payment in Commercial Transactions) Regulations 2012. A Cork law-firm cashier uses business-day math to track Workplace Relations Commission complaint windows under the Workplace Relations Act 2015. A Galway SaaS controller uses the count to align Revenue VAT3 bimonthly returns and ROS Form CT1 nine-month corporation-tax filings against month-end cutoffs.
For informational purposes only
This calculator provides general estimates based on business day counting rules. It does not constitute legal advice. Deadlines in legal, regulatory, or contractual matters may be subject to jurisdiction-specific rules, court orders, or statutory exceptions. Always verify critical deadlines with a qualified professional.