Business Days in September 2026 for Vietnam
September 2026 has 20 working days under the Vietnamese national holiday calendar. September 2026 contains 2 Vietnamese national holidays on weekdays. The month covers 30 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 Vietnam.
working days
20
Calendar Days
30
Weekend Days
8
public holidays
2
Work Weeks
4.0
| Mon | Tue | Wed | Thu | Fri | Sat | Sun |
|---|---|---|---|---|---|---|
1 | 2 National Day (day 1) | 3 National Day (day 2) | 4 | 5 wknd | 6 wknd | |
7 | 8 | 9 | 10 | 11 | 12 wknd | 13 wknd |
14 | 15 | 16 | 17 | 18 | 19 wknd | 20 wknd |
21 | 22 | 23 | 24 | 25 | 26 wknd | 27 wknd |
28 | 29 | 30 |
public holidays in September 2026
Vietnam September deadlines
National Day (September 2-3) closes banks and the HOSE/HNX. Monthly VAT for August is due September 20. Q3 audit fieldwork begins. The annual State Budget law process opens in the National Assembly with debates running through November. The MPI publishes Q3 FDI inflow data.
Day-of-Week Distribution
The count of each weekday in September 2026. 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 | 5 |
| Wednesday | 5 |
| Thursday | 4 |
| Friday | 4 |
| Saturday | 4 |
| Sunday | 4 |
Vietnam reporting cycles and business-day rules
Vietnamese business-day cycles align with GDT (General Department of Taxation) monthly VAT returns due by the 20th of the following month, quarterly corporate income tax provisional payments due 30 days after each quarter-end, and the annual CIT finalisation due the last day of the 3rd month after fiscal year-end. The State Bank of Vietnam operates VICAS as the high-value RTGS system on bank business days. Tet (Lunar New Year) closes banks and the HOSE/HNX for 7-9 days under the annual Government decree. The Labour Code 2019 governs employment including the 13th-month salary norm and Tet-related leave entitlements. The Ministry of Planning and Investment (MPI) approves FDI projects.
September 2026 working days compared by country
Working-day counts vary across countries because each country observes its own public holidays. The table below puts Vietnam alongside the other ten supported holiday calendars for September 2026.
| Country | Business Days | Holidays this month |
|---|---|---|
| 🇺🇸United States | 21 | Labor Day |
| 🇬🇧United Kingdom | 22 | None |
| 🇨🇦Canada | 20 | Labour Day, National Day for Truth and Reconciliation |
| 🇦🇺Australia | 22 | None |
| 🇮🇳India | 22 | None |
| 🇵🇭Philippines | 22 | None |
| 🇫🇷France | 22 | None |
| 🇩🇪Germany | 22 | None |
| 🇯🇵Japan | 19 | Respect for the Aged Day, Citizens' Holiday, Autumnal Equinox Day |
| 🇲🇽Mexico | 21 | Día de la Independencia |
| 🇸🇬Singapore | 22 | None |
How September 2026 compares year over year
September 2025 also had 20 working days, so the working capacity is unchanged year over year. On the surrounding months, August 2026 has 21 working days and October 2026 has 22. Looking forward, September 2027 has 20 working days under the same Vietnamese national holiday calendar.
Using this calculator in Vietnam
A Ho Chi Minh City treasury operator uses the 20-day September 2026 count to align SBV (State Bank of Vietnam) VICAS RTGS settlement with GDT (General Department of Taxation) monthly VAT cutoffs on the 20th. A Hanoi manufacturing controller uses business-day math to track Tet 7-9-day closures and the 13th-month salary cycle under the Labour Code 2019. A Da Nang export firm uses working-day counts to align customs clearance with HOSE/HNX listed-entity disclosure cycles and MPI (Ministry of Planning and Investment) FDI approval windows.
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.