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Calendar
Public holidays, week numbers and weekends with tax and social security deadlines in one calendar. This month's and next month's deadlines below.
Tax and SGK deadlines are marked for the period covered by the published GİB calendar (12 October 2026 – 30 April 2027). Other years show holidays only.
This month and next month
Upcoming deadlines from the Revenue Administration calendar. See the tax calendar for the full list.
October 2026
- 12/10e-Ledger upload (income tax payers)Period: June 20262026-10-12
- 14/10e-Ledger upload (other taxpayers)Period: June 20262026-10-14
- 26/10Reverse-charge VAT (KDV-2)Period: September 20262026-10-26
- 26/10Withholding and social security returnPeriod: September 20262026-10-26
- 26/10Withholding return (quarterly)Period: 2026 · Q32026-10-26
- 26/10Stamp duty returnPeriod: September 20262026-10-26
- 26/10Accommodation taxPeriod: September 20262026-10-26
- 28/10VAT return and paymentPeriod: September 20262026-10-28
- 28/10VAT return (quarterly)Period: 2026 · Q32026-10-28
November 2026
- 02/11Social security premium paymentPeriod: September 20262026-11-02
- 10/11e-Ledger upload (income tax payers)Period: July 20262026-11-10
- 16/11e-Ledger upload (other taxpayers)Period: July 20262026-11-16
- 17/11Provisional tax return and paymentPeriod: 2026 · Q32026-11-17
- 25/11Reverse-charge VAT (KDV-2)Period: October 20262026-11-25
- 26/11Withholding and social security returnPeriod: October 20262026-11-26
- 26/11Stamp duty returnPeriod: October 20262026-11-26
- 26/11Accommodation taxPeriod: October 20262026-11-26
- 30/11VAT return and paymentPeriod: October 20262026-11-30
- 30/11Social security premium paymentPeriod: October 20262026-11-30
- 30/11Property tax and environmental tax, 2nd instalmentPeriod: 20262026-11-30
December 2026
- 10/12e-Ledger upload (income tax payers)Period: August 20262026-12-10
- 14/12e-Ledger upload (other taxpayers)Period: August 20262026-12-14
- 25/12Reverse-charge VAT (KDV-2)Period: November 20262026-12-25
- 28/12Withholding and social security returnPeriod: November 20262026-12-28
- 28/12Stamp duty returnPeriod: November 20262026-12-28
- 28/12Accommodation taxPeriod: November 20262026-12-28
- 28/12VAT return and paymentPeriod: November 20262026-12-28
- 31/12Opening certification of next year's booksPeriod: 20272026-12-31
- 31/12Social security premium paymentPeriod: November 20262026-12-31
January 2027
- 25/01Reverse-charge VAT (KDV-2)Period: December 2026 · draft2027-01-25
- 26/01Withholding and social security returnPeriod: December 2026 · draft2027-01-26
- 26/01Stamp duty returnPeriod: December 2026 · draft2027-01-26
- 26/01Withholding return (quarterly)Period: 2026 · Q4 · draft2027-01-26
- 28/01VAT return and paymentPeriod: December 2026 · draft2027-01-28
- 28/01VAT return (quarterly)Period: 2026 · Q4 · draft2027-01-28
February 2027
- 01/02Social security premium paymentPeriod: December 2026 · draft2027-02-01
- 25/02Reverse-charge VAT (KDV-2)Period: January 2027 · draft2027-02-25
- 26/02Withholding and social security returnPeriod: January 2027 · draft2027-02-26
- 26/02Stamp duty returnPeriod: January 2027 · draft2027-02-26
March 2027
- 01/03VAT return and paymentPeriod: January 2027 · draft2027-03-01
- 01/03Social security premium paymentPeriod: January 2027 · draft2027-03-01
- 25/03Reverse-charge VAT (KDV-2)Period: February 2027 · draft2027-03-25
- 26/03Withholding and social security returnPeriod: February 2027 · draft2027-03-26
- 26/03Stamp duty returnPeriod: February 2027 · draft2027-03-26
- 29/03VAT return and paymentPeriod: February 2027 · draft2027-03-29
- 31/03Social security premium paymentPeriod: February 2027 · draft2027-03-31
- 31/03Annual income tax returnPeriod: 2026 · draft2027-03-31
April 2027
- 26/04Reverse-charge VAT (KDV-2)Period: March 2027 · draft2027-04-26
- 26/04Withholding and social security returnPeriod: March 2027 · draft2027-04-26
- 26/04Stamp duty returnPeriod: March 2027 · draft2027-04-26
- 28/04VAT return and paymentPeriod: March 2027 · draft2027-04-28
- 30/04Social security premium paymentPeriod: March 2027 · draft2027-04-30
- 30/04Corporate tax returnPeriod: 2026 · draft2027-04-30
Public holidays in 2026
| Date | Day | Holiday | Length |
|---|---|---|---|
| 1 January | Thursday | New Year's Day | Full day |
| 19 March | Thursday | Eid al-Fitr eve | Afternoon |
| 20 March | Friday | Eid al-Fitr (Ramazan Bayramı) · day 1 | Full day |
| 21 March | Saturday | Eid al-Fitr (Ramazan Bayramı) · day 2 | Full day |
| 22 March | Sunday | Eid al-Fitr (Ramazan Bayramı) · day 3 | Full day |
| 23 April | Thursday | National Sovereignty and Children's Day | Full day |
| 1 May | Friday | Labour and Solidarity Day | Full day |
| 19 May | Tuesday | Commemoration of Atatürk, Youth and Sports Day | Full day |
| 26 May | Tuesday | Eid al-Adha eve | Afternoon |
| 27 May | Wednesday | Eid al-Adha (Kurban Bayramı) · day 1 | Full day |
| 28 May | Thursday | Eid al-Adha (Kurban Bayramı) · day 2 | Full day |
| 29 May | Friday | Eid al-Adha (Kurban Bayramı) · day 3 | Full day |
| 30 May | Saturday | Eid al-Adha (Kurban Bayramı) · day 4 | Full day |
| 15 July | Wednesday | Democracy and National Unity Day | Full day |
| 30 August | Sunday | Victory Day | Full day |
| 28 October | Wednesday | Republic Day eve | Afternoon |
| 29 October | Thursday | Republic Day | Full day |
Working days by month, 2026
Working days: Monday–Friday excluding public holidays; eves count as half a day (0.5).
Calendar tools
- Working days calculator · Counts calendar days, weekends, public holidays and working days between two dates and lists the holidays in between.
- Deadline calculator · Adds days, working days, weeks, months or years to a notification or start date and moves the last day to the next working day if it falls on a weekend or public holiday.
- Tax calendar
Source: 2429 sayılı Ulusal Bayram ve Genel Tatiller Hakkında Kanun · Diyanet İşleri Başkanlığı, Dini Günler (vakithesaplama.diyanet.gov.tr/dini_gunler.php) · GİB 2026 Yılı Vergi Takvimi (gib.gov.tr/vergi-takvimi)