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Business Day Calculator

Business Days in May 2030 for Ireland

May 2030 has 23 working days under the Irish public holiday calendar. May 2030 contains no Irish public holidays 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

23

Calendar Days

31

Weekend Days

8

public holidays

0

Work Weeks

4.6

May 2030 business day calendar
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public holidays in May 2030

No Irish public holidays fall on a weekday in May 2030, so banks and Ireland financial markets keep their regular schedule for the entire month.

Ireland May deadlines

Form CT1 for August year-end companies is due May 23. VAT3 for March-April bimonthly is due May 19 or May 23 via ROS. The May Day Bank Holiday on the first Monday closes banks and Euronext Dublin. Workplace Relations Commission (WRC) complaint windows under the Workplace Relations Act 2015 typically run six months from the date of the act complained of; mid-year claim cycles peak in May.

Day-of-Week Distribution

The count of each weekday in May 2030. Useful for shift scheduling, weekly recurring billing, and any rota that depends on a specific day of the week landing in-month.

DayCount
Monday4
Tuesday4
Wednesday5
Thursday5
Friday5
Saturday4
Sunday4

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.

May 2030 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 May 2030.

How May 2030 compares year over year

May 2029 had 22 working days, so May 2030 has 1 more working day year over year. On the surrounding months, April 2030 has 22 working days and June 2030 has 20. Looking forward, May 2031 has 22 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 23-day May 2030 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.

Frequently Asked Questions

How many business days are in May 2030 for Irish public?
May 2030 has 23 working days under the Irish public holiday calendar. The month spans 31 calendar days, of which 8 fall on a weekend and 0 are Irish public holidays that lands on a weekday. The remaining 23 weekdays are countable as working days for invoicing, deadline tracking, and contract math.
Which Ireland holidays affect May 2030?
May 2030 contains no Irish public holidays that fall on a weekday. Banks, the central clearing system, and Ireland financial markets keep their normal schedule throughout the month under this calculator's national-only holiday set.
Why is St Brigid's Day included from 2023 onward?
The Sick Leave Act 2022 added St Brigid's Day (Lá Fhéile Bríde) as Ireland's tenth public holiday under the Organisation of Working Time Act 1997. From 2023 the day is the first Monday in February, except when February 1 itself falls on a Friday, in which case February 1 is the public holiday. The holiday recognises both St Brigid and the start of the Celtic festival of Imbolc, and was the first new Irish public holiday added since 1973.
How do observed-day shifts work for Irish public holidays?
When New Year's Day, St Patrick's Day, Christmas Day, or St Stephen's Day falls on a weekend, the observance shifts to the next working day under the Organisation of Working Time Act 1997. Employers grant either a paid day off, an extra day of annual leave, an extra day of pay, or pay for the day as normal. Easter Monday and the four bank holidays on the first or last Mondays (May, June, August, October) always fall on a Monday by definition and therefore have no observance shift.
Why does the business-day count vary year to year?
Two things shift the monthly count for Ireland. First, the day of the week the first of the month lands on changes the count of each weekday. Second, Irish public holidays anchored to a fixed date shift their weekday across years. Some years a fixed-date holiday lands on a weekend; some countries shift the observance to an adjacent weekday and some absorb it into the weekend. May 2029 had 22 working days, so May 2030 has 1 more working day year over year.

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