Tamil Nadu G.O. (Ms.) No. 613, dated 6 October 2026, declares the following NI Act public holidays for state government offices and all commercial and co-operative banks.
| Date | Day | Holiday |
| 01 Jan 2027 | Friday | New Year’s Day |
| 15 Jan 2027 | Friday | Pongal |
| 16 Jan 2027 | Saturday | Thiruvalluvar Day |
| 17 Jan 2027 | Sunday | Uzhavar Thirunal |
| 22 Jan 2027 | Friday | Thai Poosam |
| 26 Jan 2027 | Tuesday | Republic Day |
| 10 Mar 2027 | Wednesday | Ramzan (Idu’l Fitr) |
| 26 Mar 2027 | Friday | Good Friday |
| 01 Apr 2027 | Thursday | Annual closing of accounts — commercial and co-operative banks only |
| 07 Apr 2027 | Wednesday | Telugu New Year’s Day |
| 14 Apr 2027 | Wednesday | Tamil New Year’s Day / Dr. B.R. Ambedkar’s Birthday |
| 19 Apr 2027 | Monday | Mahaveer Jayanthi |
| 01 May 2027 | Saturday | May Day |
| 17 May 2027 | Monday | Bakrid (Idul Zuha) |
| 15 Jun 2027 | Tuesday | Muharram (Yaom-e-Shahadath) |
| 15 Aug 2027 | Sunday | Independence Day |
| 15 Aug 2027 | Sunday | Milad-un-Nabi (Prophet’s Birthday)-(not published) |
| 25 Aug 2027 | Wednesday | Krishna Jayanthi |
| 04 Sep 2027 | Saturday | Vinayakar Chathurthi |
| 02 Oct 2027 | Saturday | Gandhi Jayanthi |
| 08 Oct 2027 | Friday | Ayutha Pooja |
| 09 Oct 2027 | Saturday | Vijaya Dasami |
| 28 Oct 2027 | Thursday | Deepavali |
| 25 Dec 2027 | Saturday | Christmas |
The 1 April annual bank-accounts closing holiday applies specifically to commercial and co-operative banks in Tamil Nadu.
Disclaimer: While due care and diligence have been exercised in compiling the list of holidays provided above, inadvertent errors, omissions, or discrepancies may occur. The publisher does not warrant the accuracy, completeness, or timeliness of the information. Readers are advised to verify the details with the official notifications or circulars issued by the respective state or union territory banks, or by the Indian Banks’ Association (IBA), before acting upon the content herein. Neither the author nor any person associated, directly or indirectly, with this website shall be held responsible or liable for any loss, damage, or claim arising out of or in connection with the use of the information presented above.



