Thailand runs on an official public holiday calendar set annually by the Cabinet, and 2026 brought the usual mix of fixed religious observances, royal anniversaries, and a couple of "bridge" days added to encourage long weekends. For anyone renting, buying, or managing property in Thailand, these dates matter more than they might elsewhere: land offices, immigration bureaus, banks, and most government agencies close completely, which can stall a lease signing, a TM30 filing, or a wire transfer if you don't plan around them.
Songkran, the Thai New Year, is the year's biggest closure. In 2026 it fell Monday through Wednesday, April 13 to 15, and was a nationwide public holiday. Many businesses extended their closures a day or two on either side, and Bangkok's own festival programming ran from April 11 to 15, even though only April 13-15 were gazetted public holidays.
The Bank of Thailand's official Financial Institutions Holiday calendar for 2026 (B.E. 2569) lists 19 holiday dates nationwide: New Year's Day, Thursday, January 1; an additional bridge holiday, Friday, January 2; Makha Bucha Day, Tuesday, March 3; Chakri Memorial Day, Monday, April 6; the three Songkran days, April 13-15; National Labour Day, Friday, May 1; Coronation Day, Monday, May 4; Visakha Bucha Day (observed Monday, June 1, as a substitution for Sunday, May 31); Queen Suthida's Birthday, Wednesday, June 3; King Vajiralongkorn's Birthday, Tuesday, July 28; Asalha Bucha Day, Wednesday, July 29; Queen Sirikit's Birthday / Mother's Day, Wednesday, August 12; King Bhumibol Memorial Day, Tuesday, October 13; King Chulalongkorn Day, Friday, October 23; King Bhumibol's Birthday / Father's Day (observed Monday, December 7, as a substitution for Saturday, December 5); Constitution Day, Thursday, December 10; and New Year's Eve, Thursday, December 31. Many government offices and schools also close on Thursday, July 30, for Buddhist Lent Day (Khao Phansa) under the separate civil-service holiday calendar, even though it is not one of the Bank of Thailand's 19 listed financial-institution dates — banks themselves stay open that day.
On top of the 19-date national list, the Cabinet approved one further bridge holiday for Bangkok specifically: Friday, October 16, an extra holiday for banks and specialized financial institutions in the Bangkok area only, not counted in the nationwide 19.
What actually shuts down: government offices, the Immigration Bureau, Land Departments, and commercial and specialized banks all close on gazetted public holidays, including the three Songkran days. Schools generally follow the same calendar. What stays open: hospitals, pharmacies, convenience stores, shopping malls, and most tourist attractions operate on normal or near-normal hours through Songkran, though temples see heavier crowds rather than closures. Private businesses vary — some close for the full Songkran week, others stay open with reduced staff, so it's worth confirming directly with a property management office, condo juristic person, or law firm before assuming a closure.
Songkran 2026 also fell during a nationwide policy change worth knowing about: a Royal Gazette notification effective December 3, 2025 suspended, on a 180-day trial basis, the decades-old 2pm-5pm afternoon alcohol sales blackout, so off-premises retailers (shops, supermarkets, convenience stores) were selling continuously from 11am to midnight through the whole Songkran festival, with only the midnight-to-11am window closed — not the older "11am-2pm and 5pm-midnight" split. After the trial period ended, the government made the change permanent: as of the reforms confirmed in reporting through May 2026, the standard nationwide hours are 11am to midnight daily, with separate rules for licensed venues, hotels, airport retail and designated event areas. Bangkok separately designated several of its official Songkran festival zones — including Khao San Road, Silom Road, CentralWorld, Siam Square, Lan Khon Mueang and Bangkok City Hall — as alcohol-free for the 2026 festival (April 11-15), a location-based restriction layered on top of, not a replacement for, the national sale-hour rules. Under the Alcoholic Beverage Control Act, penalties range from a 5,000 baht fine for selling without a license, up to six months in prison or a 10,000 baht fine (or both) for banned promotional activity such as discounts and giveaways, and up to one year in prison or a 100,000 baht fine for selling to minors or intoxicated customers. Anyone hosting a rental-property event during the holiday should check current signage and licensing conditions directly rather than assume last year's hours or a fixed penalty applies, since this area of policy was still being finalized through 2026.
For visa holders and long-term renters, one detail is worth flagging: Thailand's 90-day reporting rule does not carry an automatic grace period for public holidays. Immigration offices sometimes show flexibility in practice when a due date lands on a holiday, but this isn't guaranteed by any published regulation, and the safer approach is to file within the 15-day window before the deadline rather than relying on the holiday falling in your favor. The same logic applies to TM30 filings, lease renewals, and any paperwork tied to a hard date — build in a buffer before Songkran and the other bridge weekends, since the offices you need may be closed for three to five consecutive days.
Dates, bridge holidays, and sale-hour rules are set by Cabinet resolution or ministerial notification and can shift from year to year — the alcohol-hours change alone moved twice within a single year. Always confirm current-year holidays against the Bank of Thailand's financial institutions holiday calendar or the Secretariat of the Cabinet, and confirm current alcohol-sale rules against the latest Excise Department or Alcoholic Beverage Control Committee notice, before scheduling anything time-sensitive.