Skip to main content
Business Day Calculator

Business Days in May 2027 for Germany

May 2027 has 19 Arbeitstage under the German federal holiday calendar. May 2027 contains 2 German federal holidays on weekdays. The month covers 31 calendar days, of which 10 are Samstag and Sonntag. That count drives invoice cycles, payroll runs, and any contract that defines deadlines as a number of Arbeitstage in Germany.

Arbeitstage

19

Calendar Days

31

Weekend Days

10

bundesweite Feiertage

2

Work Weeks

3.8

May 2027 business day calendar
SunMonTueWedThuFriSat
1
Tag der Arbeit
2
wknd
3
4
5
6
Christi Himmelfahrt
7
8
wknd
9
wknd
10
11
12
13
14
15
wknd
16
wknd
17
Pfingstmontag
18
19
20
21
22
wknd
23
wknd
24
25
26
27
28
29
wknd
30
wknd
31

bundesweite Feiertage in May 2027

Thu, May 6Christi Himmelfahrt
Mon, May 17Pfingstmontag

Germany May deadlines

Tag der Arbeit on 1 May is a gesetzlicher Feiertag in every Bundesland, and the Lohnsteuer-Anmeldung for April is due on 10 May. Christi Himmelfahrt and Pfingstmontag are nationwide as well, and both are computed from Easter: Christi Himmelfahrt is the Thursday thirty-nine days after Easter Sunday and Pfingstmontag the Monday fifty days after. That is why the May working-day count shifts from year to year while the 10 May payroll deadline does not. The Bundesbank publishes a Monatsbericht each month.

Sources for these dates

Checked September 9, 2026. All sources

Day-of-Week Distribution

The count of each weekday in May 2027. Useful for shift scheduling, weekly recurring billing, and any rota that depends on a specific day of the week landing in-month.

DayCount
Monday5
Tuesday4
Wednesday4
Thursday4
Friday4
Saturday5
Sunday5

Germany reporting cycles and business-day rules

German business-day cycles run on a few fixed statutory anchors. The Lohnsteuer-Anmeldung is due on the tenth day after each Anmeldungszeitraum under § 41a Abs. 1 EStG, and § 18 Abs. 1 UStG puts the Umsatzsteuer-Voranmeldung on that same tenth day, with the calendar quarter as the default period and the calendar month compulsory once the previous year's tax passed 9,000 euros under § 18 Abs. 2 UStG. Sozialversicherungsbeiträge fall on the third-to-last Bankarbeitstag of the month under § 23 Abs. 1 SGB IV. Einkommensteuer instalments fall on 10 March, 10 June, 10 September and 10 December under § 37 Abs. 1 EStG, and § 31 Abs. 1 KStG carries the same treatment into Körperschaftsteuer. Where any of these lands on a Saturday, Sunday or public holiday, § 108 Abs. 3 AO shifts tax deadlines and § 193 BGB shifts civil-law deadlines to the next Werktag, which is the shift this calculator's Arbeitstage count implements.

May 2027 Arbeitstage compared by country

Working-day counts vary across countries because each country observes its own public holidays. The table below shows May 2027 under 11 of the site's 25 holiday calendars; the summary above gives Germany's own count.

CountryBusiness DaysHolidays this month
🇺🇸United States20Memorial Day
🇬🇧United Kingdom19Early May Bank Holiday, Spring Bank Holiday
🇨🇦Canada20Victoria Day
🇦🇺Australia21None
🇮🇳India19Eid ul-Adha, Buddha Purnima
🇵🇭Philippines20Eid'l Adha (approximate)
🇫🇷France19Ascension, Lundi de Pentecôte
🇩🇪Germany (this page)19Christi Himmelfahrt, Pfingstmontag
🇯🇵Japan18Constitution Memorial Day, Greenery Day, Children's Day
🇲🇽Mexico21None
🇸🇬Singapore19Hari Raya Haji, Vesak Day

How May 2027 compares year over year

May 2026 had 18 arbeitstage, so May 2027 has 1 more working day year over year. On the surrounding months, April 2027 has 22 Arbeitstage and June 2027 has 22. Looking forward, May 2028 has 21 Arbeitstage under the same German federal holiday calendar.

Using this calculator in Germany

A Munich Mittelstand controller uses the 19-day May 2027 count to line up the Lohnsteuer-Anmeldung, due on the tenth day after each Anmeldungszeitraum under § 41a Abs. 1 EStG, with the Sozialversicherung due date on the third-to-last Bankarbeitstag under § 23 Abs. 1 SGB IV. A Hamburg logistics firm counts Arbeitstage to place Skonto windows, where § 271 BGB governs when performance falls due and § 193 BGB moves a deadline landing on a Saturday, Sunday or public holiday to the next Werktag. A Frankfurt finance team uses the same count for the Umsatzsteuer-Voranmeldung, which § 18 Abs. 1 UStG also places on the tenth day after the period ends.

Sources for these rules

Checked September 9, 2026. All sources

How May 2027 is shaped

The headline count answers how many Arbeitstage May 2027 contains. It does not answer where they sit, and for anything measured in consecutive days rather than cumulative days that second question is the binding one. What follows is derived entirely from the German federal holiday calendar and a working week that treats Samstag and Sonntag as the weekend, with no assumption about how any particular obligation behaves.

The middle month of the second quarter

May runs 31 days and sits in the middle of Q2, the position with neither a quarter opening nor a quarter close to anchor it. It shares its weekday alignment with January in a common year, so the two months carry the same underlying structure twelve months apart. A 31-day month always carries three weekdays five times, which is what makes its working-day count the most sensitive of the four month lengths to where it starts.

In May 2027 that comes to 19 Arbeitstage across 31 calendar days, against 22 in April 2027 and 22 in June 2027.

The month opens across a weekend

The 1st of May is a Saturday, a weekend day under the German federal calendar, whose week runs against a Samstag and Sonntag weekend. Nothing that settles on working days moves on it. A month that opens this way loses its first working day to the calendar before any holiday is counted, and monthly cycles keyed to the 1st all resolve forward to the same date, which concentrates them.

The month's first working day is Monday, May 3, and May 2027 carries 19 Arbeitstage in total.

One working day stands alone

One working day in May 2027 is walled in on both sides. Friday, May 7 sits between Christi Himmelfahrt and the Samstag and Sonntag weekend, with no adjacent working day on either side. That single day still counts toward the month's total, but it cannot carry work that needs a second consecutive day, and anything that slips on it slips across a full closure rather than overnight.

The working days of May 2027 arrive in stretches of 3, 1, 5, 4, 5, and 1 day. The longest unbroken stretch runs five days, from May 10 to May 14. A task needing more consecutive Arbeitstage than that cannot be completed inside a single stretch, whatever the month's total looks like.

The month is front-loaded. It opens with three consecutive days and closes with one, so capacity thins toward the end. Work deferred out of the first stretch arrives in a shorter one, which is how a schedule that looked comfortable in week one stops fitting.

Three weekdays occur five times

A 31-day month contains four full seven-day cycles and three days over, so exactly three weekdays occur five times and the other four occur four times. In May 2027 the three are Sunday, Monday, and Saturday. Which three it is follows entirely from the weekday the month opens on, which is why the working-day count of a 31-day month moves year to year even when its holidays do not.

Only Monday among them is a working day, so part of the surplus is absorbed by the Samstag and Sonntag weekend and never reaches the working total. That split is why two months of the same length can carry different working-day counts without any holiday being involved.

Two closures in the month

Two German federal holidays fall on working days in May 2027: Christi Himmelfahrt on Thursday, May 6 and Pfingstmontag on Monday, May 17. Two closures remove two days from the total, but their effect on the month's usable structure depends on how far apart they are.

They sit 11 calendar days apart, which puts them in different working weeks. Two closures in separate weeks cost the same total as two in one week and do less damage to any single stretch, so the month's longest run survives better than the count alone suggests.

three working days pass before the closure and 16 follow it, so the interruption sits near the front of the month. An early closure is the cheaper position of the two: there is more month left afterwards to absorb whatever it displaced.

The closures around this month

May 2027 carries two German federal closures of its own, and the months on either side add their own. Where a deadline sits close to a month boundary, the closure that moves it is as likely to be outside the month as inside it.

Looking outside the month, the last was Ostermontag on March 29, 2027, 33 calendar days before May began and the next is Karfreitag on April 14, 2028, 319 calendar days after it ends.

Across the whole of 2027 the German federal calendar puts five closures on working days, of which two fall in May. That ratio, rather than the raw count, is what tells you whether a month is carrying more than its share of the year's downtime.

The month ends where a week begins

The final calendar day of May 2027 is the first working day of a week. A single working day of that week belongs to May and the rest to the month following, which is the least amount of closing capacity a month can have. Anything that must be done "in the last week" of May really has to be done before the preceding weekend.

The last working day of May 2027 is Monday, May 31. Counting back from there, the third-to-last is Thursday, May 27, four calendar days before the month closes.

The middle month of the quarter

May is the middle month of Q2. Middle months carry the least visibility in a quarterly cycle: the opening month sets expectations and the closing month is where they are settled, so a shortfall here is the one most likely to be noticed late.

Across the whole quarter there are 63 Arbeitstage, of which 19 fall in May. The other two months carry April 2027 with 22 and June 2027 with 22. It is the smallest of the three, so the quarter's capacity sits mostly in the other two months and a plan that spreads work evenly across the quarter will over-commit May.

The week's fourth working day is the scarcest

The fourth working day of the week is the one May gives least often. It is the position that carries most pre-weekend handover work, so an occurrence lost here tends to push into the following week rather than into the next day.

Counted as worked rather than as occurring, May 2027 gives Monday 4, Tuesday 4, Wednesday 4, Thursday 3, and Friday 4. A weekly commitment pinned to a particular weekday fires that many times in the month, which is the number a rota needs and not the one the calendar shows.

One of the year's shortest working months

No month of 2027 carries fewer Arbeitstage than May under the German federal calendar. Two forces set a month's position in that ranking, its length and its closures, and they can either compound or cancel: a long month with several closures and a short month with none can land on the same count.

2027 carries 256 Arbeitstage in total under the German federal calendar. The longest month of the year is December 2027 with 23 and the shortest is May 2027 with 19, a spread of 4. May ranks 12th of the twelve with 19.

Inside one of the year's denser months

May 2027 carries more than one German federal closure, which puts it among the year's denser months. Closures are never spread evenly across a year, so a month's own count says as much about the country's calendar as about the month.

Across 2027 the German federal closures fall 3 in Q1, 2 in Q2, 0 in Q3, and 0 in Q4. A further four holidays land on the Samstag and Sonntag weekend and cost no working day at all, which is why a country's holiday count and its working-day loss are different numbers.

The longest uninterrupted run in the 2027 calendar sits between January 1, 2027 and March 26, 2027, 84 calendar days with no German federal closure in between. Stretches like that are where multi-week work belongs, and they move from year to year whenever a movable holiday does.

Where the month sits in the year's closure pattern

Closures are not spread evenly across a calendar year. They cluster around fixed anniversaries and around whichever lunar or movable feasts a jurisdiction observes, so two adjacent months can carry very different loads, and the German federal calendar is no exception.

2027 opens its German federal closures with Neujahrstag on January 1, 2027 and ends them with Pfingstmontag on May 17, 2027. The densest month of the year is March 2027 with two closures on working days.

One working day more than last year

There is one more Arbeitstage in May 2027 than in May 2026: 19 against 18. A single-day swing is the ordinary case, produced by the calendar shifting forward one weekday between consecutive common years, and it is large enough to matter to a monthly target and small enough to be missed.

May opens 2026 on a Friday, 2027 on a Saturday, and 2028 on a Monday. That movement, one weekday in a common year and two after a leap day, is what makes the three counts differ. The count of closures on working days differs between the two years as well, so alignment is not the only thing moving. Looking ahead, May 2028 carries 21 Arbeitstage.

Where the month's anchor dates fall

Two of the common monthly anchor dates in May 2027 land outside the working week or on a closure. The table below resolves each one against the German federal calendar, together with the first working day on or after it.

DateWeekdayStatus under the German federal calendarFirst working day on or after
May 1SaturdayClosed: Tag der ArbeitMay 3, 2027
May 5WednesdayWorking dayMay 5
May 10MondayWorking dayMay 10
May 15SaturdayWeekendMay 18, 2027
May 20ThursdayWorking dayMay 20
May 25TuesdayWorking dayMay 25
May 31MondayWorking dayMay 31

The final column is arithmetic, not a legal conclusion. Whether an obligation actually moves when its date is not a working day depends on the instrument that sets it, and this site does not assume a shift rule for any jurisdiction. Where a rule is known it is stated in the holiday data methodology and on the country page it applies to.

Net terms dated in May 2027

An invoice dated the 1st of May on calendar-day Net 30 terms comes due on May 31, 2027, a working day under the German federal calendar. Terms counted in calendar days move independently of the working week, so the same term written on two consecutive months can settle cleanly in one and roll across a closure in the other.

Invoice dateNet 30, calendar daysNet 60, calendar days
Dated May 1May 31, 2027June 30, 2027
Dated May 15June 14, 2027July 14, 2027
Dated May 31June 30, 2027July 30, 2027

Net 30 and Net 60 are commercial conventions rather than statutory periods, and both are counted here in calendar days, which is how they are almost always written. Where a contract counts in working days instead, use the between-dates calculator with the Germany calendar selected, because the two produce different dates whenever a closure falls inside the term.

Sources and verification

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 2027 under the German federal holiday calendar?
May 2027 has 19 Arbeitstage under the German federal holiday calendar. The month spans 31 calendar days, of which 10 fall on a weekend and 2 are German federal holidays that land on a weekday. The remaining 19 weekdays are countable as Arbeitstage for invoicing, deadline tracking, and contract math.
Which Germany holidays affect May 2027?
May 2027 contains 2 German federal holidays: Christi Himmelfahrt on Thursday, May 6; Pfingstmontag on Monday, May 17. The calculator skips each of them. Regional or industry-specific closures may add further non-working days for narrower contract definitions; layer them into the calculator's Advanced options if needed.
Why does this calendar use only the nationwide holidays?
Tag der Deutschen Einheit on 3 October is a statutory holiday by federal law (Einigungsvertrag, Art. 2(2)); the other holidays are set by the Länder, each in its own Feiertagsgesetz. The nine bundesweite Feiertage in this calculator are the days every Land observes: Neujahrstag, Karfreitag, Ostermontag, Tag der Arbeit, Christi Himmelfahrt, Pfingstmontag, Tag der Deutschen Einheit, Erster Weihnachtstag and Zweiter Weihnachtstag. Days that only some Länder observe are not included: Bavaria, for example, adds Heilige Drei Könige, Fronleichnam and Allerheiligen statewide and Mariä Himmelfahrt in municipalities with a predominantly Catholic population, Berlin adds the Frauentag on 8 March, and Saxony adds Buß- und Bettag.
How does § 193 BGB shift deadlines that land on a Feiertag?
§ 193 BGB applies where a declaration is to be made or a performance rendered on a set day or within a period: if that day, or the last day of the period, is a Sunday, a public holiday recognised at the place of declaration or performance, or a Saturday (Sonnabend), the next Werktag takes its place. The tax code has a parallel rule for tax periods in § 108 Abs. 3 AO. A ten-day payment period whose last day is Karfreitag therefore runs past Ostermontag to the Tuesday. This calculator does not apply the shift itself: in calendar-day mode its result can fall on any day, and in business-day mode never on a weekend or a holiday.
Why does the business-day count vary year to year?
Two things shift the monthly count for Germany. First, the day of the week the first of the month lands on changes the count of each weekday. Second, German federal 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 2026 had 18 arbeitstage, so May 2027 has 1 more working day year over year.
When is the last working day of May 2027?
The last working day of May 2027 under the German federal calendar is Monday, May 31. The month's last calendar day is Monday, May 31, so the two are the same date this year. Counting back, the third-to-last working day is Thursday, May 27.
How many working days in a row does May 2027 offer?
May 2027 has 19 Arbeitstage in total, but they do not run consecutively. They arrive in six stretches of 3, 1, 5, 4, 5, and 1 day, so the longest unbroken run is five days, from May 10 to May 14. One working day in the month stands alone with a closure on either side.

Sources for these rules

Checked October 8, 2026. All sources

Related months and resources