Thailand Fiscal Year Calendar

Country code TH · Currency THB · 0 public holidays tracked

Naming convention

Labelled by the calendar year in which the fiscal year ends.

First fiscal month (FM1)

October

Quarter alignment

Q1: October–December · Q4 ends September

Source

Bureau of the Budget, Thailand

About the Thailand fiscal year

Thailand's fiscal year runs October 1 through September 30, with FY labelled by the Buddhist Era year in which it ends. The Budget Bureau prepares the annual budget for Cabinet and Parliament approval each summer.

For accountants and budget planners working on this calendar, the fiscal year runs from October 1 through September 30. The first fiscal month (FM1) corresponds to October; the fourth quarter ends on the last day of September. Year-end close, audit windows, and budget kickoff all anchor to those dates rather than to January and December. For a deeper introduction to fiscal-year mechanics, see our primer on fiscal years and the historical background on why fiscal years differ across countries.

Below you'll find printable monthly templates for every fiscal month, quarterly breakdowns, the country-specific deadline schedule, and a holiday calendar mapped onto the fiscal year so you can see where each public holiday falls relative to your reporting cycle.

Key fiscal deadlines — Thailand

These are the recurring statutory and operational dates that drive the Thailand fiscal calendar. Use them as fixed anchors when scheduling close milestones, audit walkthroughs, board meetings, and budget reviews.

Planning tips for Thailand

• Year-end close concentrates in the final 2 fiscal months; resource planning should reflect this.
• Map public holidays onto fiscal months early — non-business days impact close calendars and accruals.
• Compare your fiscal calendar to vendor and customer calendars when negotiating annual contracts.

Choose a fiscal year

FY labels follow the year-end convention: a fiscal year is identified by the calendar year in which it ends. Each link opens the full year-at-a-glance with all twelve fiscal months on one page.

Monthly templates

Each printable monthly template uses the standard Sunday-start week grid with Thailand public holidays highlighted. Click through to print or save a clean copy. Templates are labelled FM1–FM12 in fiscal-year order, not calendar-year order.

Quarterly breakdowns

Each quarter spans three fiscal months. Quarterly templates are useful for board reporting, mid-year reforecasts, and quarter-end variance reviews.