Business Days in August 2027 for Switzerland
August 2027 has 22 working days under the Swiss federal holiday calendar. August 2027 contains no Swiss federal holidays on a weekday. The month covers 31 calendar days, of which 9 are Saturday and Sunday. That count drives invoice cycles, payroll runs, and any contract that defines deadlines as a number of working days in Switzerland.
working days
22
Calendar Days
31
Weekend Days
9
public holidays
0
Work Weeks
4.4
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
1 Bundesfeiertag (Swiss National Day) | 2 | 3 | 4 | 5 | 6 | 7 wknd |
8 wknd | 9 | 10 | 11 | 12 | 13 | 14 wknd |
15 wknd | 16 | 17 | 18 | 19 | 20 | 21 wknd |
22 wknd | 23 | 24 | 25 | 26 | 27 | 28 wknd |
29 wknd | 30 | 31 |
public holidays in August 2027
No Swiss federal holidays fall on a weekday in August 2027, so the month loses no working day to a holiday on this calendar.
Switzerland August deadlines
Bundesfeiertag on 1 August is the only federal public holiday in Switzerland, not merely the only one in this month: every other closure day is cantonal, and Art. 20a of the Arbeitsgesetz lets a canton treat up to eight further days as equivalent to a Sunday. The MWST return for the second quarter falls due at the end of August rather than on 31 July, because the 60-day period in Art. 71 Abs. 1 MWSTG runs from the 30 June quarter-end to 29 August, with payment due the same day under Art. 86 Abs. 1 MWSTG.
Sources for these dates
- Der 1. August ist der einzige eidgenössische Feiertag; die Kantone dürfen höchstens acht weitere den Sonntagen gleichstellen (Art. 20a ArG) (Schweizerische Eidgenossenschaft (ch.ch))
- Art. 71 Abs. 1 MWSTG: Abrechnung innert 60 Tagen nach Ablauf der Abrechnungsperiode (Stand 1. Januar 2025) (Bundesversammlung der Schweizerischen Eidgenossenschaft (Fedlex))
- Art. 86 Abs. 1 MWSTG: Entrichtung der Steuer innert 60 Tagen nach Ablauf der Abrechnungsperiode (Bundesversammlung der Schweizerischen Eidgenossenschaft (Fedlex))
Checked September 9, 2026. All sources
Day-of-Week Distribution
The count of each weekday in August 2027. 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 | 5 |
| Tuesday | 5 |
| Wednesday | 4 |
| Thursday | 4 |
| Friday | 4 |
| Saturday | 4 |
| Sunday | 5 |
Switzerland reporting cycles and business-day rules
Swiss business-day cycles run on the MWST period and on cantonal holiday law. Art. 35 MWSTG makes the calendar quarter the default Abrechnungsperiode, with half-yearly reporting under the Saldosteuersatz method and monthly or annual reporting only on application. Art. 71 Abs. 1 MWSTG then gives 60 days from the end of the period to file and Art. 86 Abs. 1 MWSTG 60 days to pay, so a quarter ending 31 March falls due on 30 May, 30 June on 29 August, 30 September on 29 November, and 31 December on 1 March, or on 29 February where the following year is a leap year. Returns are filed through the ESTV portal. Only 1 August is a federal public holiday: Art. 20a of the Arbeitsgesetz lets each canton treat up to eight further days as equivalent to a Sunday, which is why cantonal counts differ, and the Bundesamt für Justiz publishes the canton-by-canton directory of days treated as public holidays for the calculation of time limits.
Sources for these rules
- Art. 35 MWSTG: Abrechnung vierteljährlich, halbjährlich nach Saldosteuersätzen, monatlich oder jährlich nur auf Antrag (Bundesversammlung der Schweizerischen Eidgenossenschaft (Fedlex))
- Art. 71 Abs. 1 MWSTG: Abrechnung innert 60 Tagen nach Ablauf der Abrechnungsperiode (Stand 1. Januar 2025) (Bundesversammlung der Schweizerischen Eidgenossenschaft (Fedlex))
- Art. 86 Abs. 1 MWSTG: Entrichtung der Steuer innert 60 Tagen nach Ablauf der Abrechnungsperiode (Bundesversammlung der Schweizerischen Eidgenossenschaft (Fedlex))
- Mehrwertsteuer online abrechnen: Einreichung über das ESTV-Portal, Dienst MWST-Abrechnung pro (Eidgenössische Steuerverwaltung ESTV)
- Der 1. August ist der einzige eidgenössische Feiertag; die Kantone dürfen höchstens acht weitere den Sonntagen gleichstellen (Art. 20a ArG) (Schweizerische Eidgenossenschaft (ch.ch))
- Verzeichnis der gesetzlichen Feiertage und der Tage, die für die Fristenberechnung wie solche behandelt werden (Art. 11 des Europäischen Übereinkommens über die Berechnung von Fristen) (Bundesamt für Justiz BJ)
Checked September 9, 2026. All sources
August 2027 working days compared by country
Working-day counts vary across countries because each country observes its own public holidays. The table below shows August 2027 under 11 of the site's 25 holiday calendars; the summary above gives Switzerland's own count.
| Country | Business Days | Holidays this month |
|---|---|---|
| 🇺🇸United States | 22 | None |
| 🇬🇧United Kingdom | 21 | Summer Bank Holiday |
| 🇨🇦Canada | 22 | None |
| 🇦🇺Australia | 22 | None |
| 🇮🇳India | 22 | None |
| 🇵🇭Philippines | 21 | National Heroes Day |
| 🇫🇷France | 22 | None |
| 🇩🇪Germany | 22 | None |
| 🇯🇵Japan | 21 | Mountain Day |
| 🇲🇽Mexico | 22 | None |
| 🇸🇬Singapore | 21 | National Day |
How August 2027 compares year over year
August 2026 had 21 working days, so August 2027 has 1 more working day year over year. On the surrounding months, July 2027 has 22 working days and September 2027 has 22. Looking forward, August 2028 has 22 working days under the same Swiss federal holiday calendar.
Using this calculator in Switzerland
A Zurich treasury operator uses the 22-day August 2027 count to line up settlement with the MWST cycle, where Art. 71 Abs. 1 MWSTG gives 60 days from the end of the reporting period to file and Art. 86 Abs. 1 MWSTG the same 60 days to pay. A Geneva team tracking the SNB works from the quarterly monetary policy assessment dates the bank publishes in its official event schedule. A Basel controller counts working days across cantons, because Art. 20a of the Arbeitsgesetz lets each canton treat up to eight days besides 1 August as equivalent to a Sunday, so the same week can carry a different number of working days in two cantons.
Sources for these rules
- Art. 71 Abs. 1 MWSTG: Abrechnung innert 60 Tagen nach Ablauf der Abrechnungsperiode (Stand 1. Januar 2025) (Bundesversammlung der Schweizerischen Eidgenossenschaft (Fedlex))
- Art. 86 Abs. 1 MWSTG: Entrichtung der Steuer innert 60 Tagen nach Ablauf der Abrechnungsperiode (Bundesversammlung der Schweizerischen Eidgenossenschaft (Fedlex))
- Event schedule: quarterly monetary policy assessments and the Financial Stability Report publication date (Schweizerische Nationalbank SNB)
- Der 1. August ist der einzige eidgenössische Feiertag; die Kantone dürfen höchstens acht weitere den Sonntagen gleichstellen (Art. 20a ArG) (Schweizerische Eidgenossenschaft (ch.ch))
Checked September 9, 2026. All sources
How August 2027 is shaped
The headline count answers how many working days August 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 Swiss federal holiday calendar and a working week that treats Saturday and Sunday as the weekend, with no assumption about how any particular obligation behaves.
The middle month of the third quarter
August runs 31 days and sits in the middle of Q3, so it opens and closes nothing: no quarter, no half, no year. That makes it the month whose working-day count is least likely to be checked and most likely to be assumed. In a common year August shares its weekday alignment with February and March, which is the widest such group in the calendar.
In August 2027 that comes to 22 working days across 31 calendar days, against 22 in July 2027 and 22 in September 2027.
The month opens across a weekend
The 1st of August is a Sunday, a weekend day under the Swiss federal calendar, whose week runs against a Saturday and Sunday 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, August 2, and August 2027 carries 22 working days in total.
Five working stretches
August splits into five working stretches. That is the ordinary shape of a month whose only interruptions are its weekends, and it means the month's internal boundaries are all predictable a year in advance: nothing here depends on a holiday date moving.
The working days of August 2027 arrive in stretches of 5, 5, 5, 5, and 2 days. The longest unbroken stretch runs five days, from August 2 to August 6. A task needing more consecutive working days than that cannot be completed inside a single stretch, whatever the month's total looks like.
The month is front-loaded. It opens with five consecutive days and closes with two, 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 August 2027 the three are Sunday, Monday, and Tuesday. 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 and Tuesday among them are working days, so part of the surplus is absorbed by the Saturday and Sunday 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.
Every holiday this month falls on the weekend
August 2027 does contain a Swiss federal holiday, but it lands on the weekend (Saturday and Sunday under this calendar): Bundesfeiertag (Swiss National Day) on Sunday, August 1. A holiday costs a working day only when it displaces one, so a weekend-falling holiday leaves the month's count untouched.
Whether the day off is recovered on an adjacent weekday depends on the substitution rule of the jurisdiction, which varies and is not assumed here. This calculator counts only the dates its holiday data publishes, and for August 2027 that data lists no Swiss federal closure on a working day. Where a substitute weekday is granted, the data set carries it as a separate entry with its own date.
A long stretch with no closure at all
August 2027 sits inside an unusually long run without a Swiss federal closure. Neither the month itself nor either edge of it carries one within a month, which means the working-day count here is set by the weekend pattern alone and will repeat exactly in any year with the same alignment.
Looking outside the month, the last was Pfingstmontag (Whit Monday) on May 17, 2027, 76 calendar days before August began and the next is Karfreitag (Good Friday) on April 14, 2028, 227 calendar days after it ends.
Across the whole of 2027 the Swiss federal calendar puts five closures on working days, of which none falls in August. 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.
An early-week close
August runs out after the second working day of its last week. Most of that week belongs to the next month, so the tail of August 2027 is unusually thin: two working days carry whatever the month-end process needs, and the week's remaining capacity is not available to this period.
The last working day of August 2027 is Tuesday, August 31. Counting back from there, the third-to-last is Friday, August 27, four calendar days before the month closes.
The middle month of the quarter
August is the middle month of Q3. 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 66 working days, of which 22 fall in August. The other two months carry July 2027 with 22 and September 2027 with 22. All three months of the quarter carry the same working-day count, which happens when their weekday alignments and closures cancel out exactly.
The middle of the working week is the scarcest
The third working day of the week is the one August gives least often. Mid-week scarcity is the easiest kind to absorb, because work pinned to the middle of a week can usually move a day in either direction without crossing a weekend.
Counted as worked rather than as occurring, August 2027 gives Monday 5, Tuesday 5, Wednesday 4, Thursday 4, 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.
Where the month sits in the year
August sits in the middle of 2027 by working-day count under the Swiss federal calendar. The middle of that ranking is where a month's total is least informative on its own, because a mid-ranked month can be a long month carrying closures or a short one carrying none, and the two need different plans.
2027 carries 256 working days in total under the Swiss 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. August ranks 5th of the twelve with 22.
Switzerland closures across the year
A month's working-day count only means something against the country's whole calendar. Two countries that share a weekend and happen to have the same closure-free month can still run very different years, and Switzerland is placed as follows.
Across 2027 the Swiss federal closures fall 3 in Q1, 2 in Q2, 0 in Q3, and 0 in Q4. A further three holidays land on the Saturday and Sunday 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 Swiss 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.
After the year's last closure
August 2027 falls after the last Swiss federal closure of the year, so nothing further in 2027 reduces a working-day count. Where a deadline runs from this month into the next year, the closures that can move it all belong to the following year's calendar rather than this one.
2027 opens its Swiss federal closures with Neujahrstag (New Year's Day) on January 1, 2027 and ends them with Pfingstmontag (Whit Monday) 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 working day in August 2027 than in August 2026: 22 against 21. 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.
August opens 2026 on a Saturday, 2027 on a Sunday, and 2028 on a Tuesday. That movement, one weekday in a common year and two after a leap day, is what makes the three counts differ. The number of closures on working days is the same in both years, so the whole of any difference comes from weekday alignment. Looking ahead, August 2028 carries 22 working days.
Where the month's anchor dates fall
Two of the common monthly anchor dates in August 2027 land outside the working week or on a closure. The table below resolves each one against the Swiss federal calendar, together with the first working day on or after it.
| Date | Weekday | Status under the Swiss federal calendar | First working day on or after |
|---|---|---|---|
| August 1 | Sunday | Closed: Bundesfeiertag (Swiss National Day) | August 2, 2027 |
| August 5 | Thursday | Working day | August 5 |
| August 10 | Tuesday | Working day | August 10 |
| August 15 | Sunday | Weekend | August 16, 2027 |
| August 20 | Friday | Working day | August 20 |
| August 25 | Wednesday | Working day | August 25 |
| August 31 | Tuesday | Working day | August 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 August 2027
An invoice dated the 1st of August on calendar-day Net 30 terms comes due on August 31, 2027, a working day under the Swiss 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 date | Net 30, calendar days | Net 60, calendar days |
|---|---|---|
| Dated August 1 | August 31, 2027 | September 30, 2027 |
| Dated August 15 | September 14, 2027 | October 14, 2027 |
| Dated August 31 | September 30, 2027 | October 30, 2027 (rolls to November 1, 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 Switzerland calendar selected, because the two produce different dates whenever a closure falls inside the term.
Sources and verification
Official source: Staatssekretariat für Wirtschaft SECO (seco.admin.ch) (opens in a new tab)
Cross-checked against this source on July 23, 2026.
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 August 2027 under the Swiss federal holiday calendar?
Which Switzerland holidays affect August 2027?
Why is the Swiss calendar federal only, not cantonal?
How does Switzerland handle weekend-falling holidays?
Why does the business-day count vary year to year?
When is the last working day of August 2027?
How many working days in a row does August 2027 offer?
Sources for these rules
- Der 1. August ist der einzige eidgenössische Feiertag; die Kantone dürfen höchstens acht weitere den Sonntagen gleichstellen (Art. 20a ArG) (Schweizerische Eidgenossenschaft (ch.ch))
- Gesetz über die öffentlichen Ruhetage (BR 520.100), Art. 2: die Feiertage Neujahr, Karfreitag, Ostermontag, Auffahrt, Pfingstmontag, Weihnachtstag und Stefanstag; Art. 3: die Gemeindebehörden können weitere konfessionelle Feiertage als lokale Ruhetage bezeichnen (Kanton Graubünden (Bündner Rechtsbuch))
- Zürich: kantonsweite Feiertage nach dem Recht des Kantons (zh.ch)
- Bern: kantonsweite Feiertage nach dem Recht des Kantons (belex.sites.be.ch)
- Vaud: kantonsweite Feiertage nach dem Recht des Kantons (prestations.vd.ch)
- Genève: kantonsweite Feiertage nach dem Recht des Kantons (ge.ch)
- St. Gallen: kantonsweite Feiertage nach dem Recht des Kantons (gesetzessammlung.sg.ch)
- Luzern: kantonsweite Feiertage nach dem Recht des Kantons (srl.lu.ch)
- Ticino: kantonsweite Feiertage nach dem Recht des Kantons (m3.ti.ch)
- Uri: kantonsweite Feiertage nach dem Recht des Kantons (rechtsbuch.ur.ch)
- Schwyz: kantonsweite Feiertage nach dem Recht des Kantons (sz.ch)
- Obwalden: kantonsweite Feiertage nach dem Recht des Kantons (gdb.ow.ch)
- Nidwalden: kantonsweite Feiertage nach dem Recht des Kantons (gesetze.nw.ch)
- Glarus: kantonsweite Feiertage nach dem Recht des Kantons (gesetze.gl.ch)
- Zug: kantonsweite Feiertage nach dem Recht des Kantons (bgs.zg.ch)
- Basel-Stadt: kantonsweite Feiertage nach dem Recht des Kantons (gesetzessammlung.bs.ch)
- Basel-Landschaft: kantonsweite Feiertage nach dem Recht des Kantons (bl.clex.ch)
- Schaffhausen: kantonsweite Feiertage nach dem Recht des Kantons (rechtsbuch.sh.ch)
- Appenzell Innerrhoden: kantonsweite Feiertage nach dem Recht des Kantons (ai.clex.ch)
- Thurgau: kantonsweite Feiertage nach dem Recht des Kantons (rechtsbuch.tg.ch)
- Valais: kantonsweite Feiertage nach dem Recht des Kantons (lex.vs.ch)
- Neuchâtel: kantonsweite Feiertage nach dem Recht des Kantons (ne.ch)
- Jura: kantonsweite Feiertage nach dem Recht des Kantons (jura.ch)
- Fribourg: kantonsweite Feiertage nach dem Recht des Kantons (bdlf.fr.ch)
- Solothurn: kantonsweite Feiertage nach dem Recht des Kantons (bgs.so.ch)
- Aargau: kantonsweite Feiertage nach dem Recht des Kantons (gesetzessammlungen.ag.ch)
- Appenzell Ausserrhoden: kantonsweite Feiertage nach dem Recht des Kantons (ar.clex.ch)
- Verordnung zum Arbeitsgesetz (bGS 822.11), Art. 7: der zweite Weihnachtstag wird nicht gefeiert, wenn der 1. Weihnachtstag auf einen Montag oder Freitag fällt (Kanton Appenzell Ausserrhoden (Gesetzessammlung))
- Art. 78 OR: fällt der Erfüllungstag oder der letzte Tag einer Frist auf einen Sonntag oder einen am Erfüllungsorte staatlich anerkannten Feiertag, gilt der nächstfolgende Werktag; Fussnote 40: für Fristen des Bundesrechts ist der Samstag einem anerkannten Feiertag gleichgestellt (SR 173.110.3) (Stand 1. Januar 2026) (Bundesversammlung der Schweizerischen Eidgenossenschaft (Fedlex))
Checked October 8, 2026. All sources