The 20 October tax calendar and obligations due within the next seven days have been updated.

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OCT20CURRENT

Today’s and the next seven days’ tax calendar

Today is the deadline for seven sector-specific tax obligations

Fire insurance, municipal entertainment and advertisement taxes, games-of-chance taxes, and electricity and gas consumption tax are due today only for the relevant taxpayers and sectors. On 26 October, eight obligations covering VAT withholding, Accommodation Tax, the Withholding and Premium Service Return, Stamp Tax, excise tax and quarterly withholding returns are due.

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Today’s Tax Calendar

Today is the deadline for seven sector-specific tax obligations

Today is the deadline for September 2026 Fire Insurance Tax, Electricity and Gas Consumption Tax, Entertainment Taxes on other activities and pari-mutuel betting, Advertisement Tax, Inheritance and Transfer Tax related to games of chance, and Games of Chance Tax. Each item applies only to the relevant taxpayers and sectors.

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Upcoming Tax Calendar

Eight filing and payment obligations are due on 26 October

26 October is the deadline for September VAT withholding, Accommodation Tax, the monthly Withholding and Premium Service Return, Stamp Taxes withheld from payments and paid against receipt by continuous taxpayers, excise tax on petroleum and natural gas products for 1–15 October, and the two quarterly withholding returns for the third quarter.

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İF Haftalık Mali Takvim

Weekly tax calendar for 19–25 October 2026

This week’s general tax deadlines fall on 20 October. Seven sector-specific tax obligations for September 2026 are listed separately below with their scope. There is no general social-security premium or notification deadline between 19 and 25 October.

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Tax Calendar · Insurance

September 2026 Fire Insurance Tax

Deadline for insurance companies liable for Fire Insurance Tax to file and pay the tax for September 2026.

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Tax Calendar · Energy

September 2026 Electricity and Gas Consumption Tax

Deadline for the relevant distribution and sales companies liable for Electricity and Gas Consumption Tax to file and pay for September 2026.

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Tax Calendar · Municipal

Payment of other entertainment taxes for September 2026

Deadline to pay September 2026 Entertainment Tax on other entertainment activities under the Municipal Revenues Law; this applies only to the relevant businesses and activities.

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Tax Calendar · Pari-mutuel Betting

September 2026 Entertainment Tax on pari-mutuel betting

Deadline to file and pay September 2026 Entertainment Tax on pari-mutuel betting; this applies only to liable operators of that activity.

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Tax Calendar · Municipal

September 2026 Advertisement Tax

Deadline for those liable to municipalities for advertising activities to file and pay Advertisement Tax for September 2026.

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Tax Calendar · Games of Chance

Inheritance and Transfer Tax related to games of chance

Deadline to file and pay September 2026 Inheritance and Transfer Tax related to games of chance defined by Law No. 5602; only the relevant organisers and liable parties are in scope.

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Tax Calendar · Games of Chance

September 2026 Games of Chance Tax

Deadline for organisers of games of chance under Law No. 5602 to file and pay Games of Chance Tax for September 2026.

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Legislation · Logistics

Administrative fines for freight forwarding have been updated

The amendment applies only to freight forwarders and revises inspection and administrative-fine provisions, resets amounts by violation type and introduces annual revaluation. It entered into force on 13 October 2026.

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Legislation · Retail

The Ministry’s authority over instalment retail sales was revised

The Ministry of Trade was authorised to determine instalment periods and impose additional restrictions on instalment sales of goods and services by retailers to consumers, excluding housing sales. The amendment entered into force on 15 October 2026.

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Legislation · Public Procurement

Final tax and social-security debt threshold in tenders set at TRY 50,000

The upper threshold for final tax and social-security premium debt was set at TRY 50,000 for individuals and legal entities participating in tenders under Law No. 4734. It takes effect on 15 November 2026 and applies to tenders announced on or after that date.

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SSI · Regional Pharmacy Notice

Prescription submission deadline extended for contracted pharmacies in eight provinces

Only for SSI-contracted pharmacies in Istanbul, Tekirdağ, Kocaeli, Sakarya, Düzce, Edirne, Kırklareli and Yalova, the deadline for prescriptions and attachments submitted in October was extended to 30 October 2026; the specified blood-product and haemophilia prescriptions are excluded.

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Legislation · Companies

Minimum-capital compliance deadline extended to 31 December 2027

The capital compliance deadline for joint-stock and limited companies below the new minimums, and covered non-public joint-stock companies in the registered-capital system, was extended to 31 December 2027. The communiqué entered into force on 17 October 2026.

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Special Observance

Mukhtars’ Day

We celebrate 19 October Mukhtars’ Day, honouring Türkiye’s closest elected link between citizens and local administration.

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Special Observance

World Journalists’ Day

We mark World Journalists’ Day and recognise media professionals who work responsibly to keep the public accurately informed.

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Special Observance

International Stuttering Awareness Day

We support accurate information, understanding and inclusive communication about stuttering.

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Special Observance

United Nations Day

We mark the entry into force of the United Nations Charter on 24 October 1945 and the goals of peace, international cooperation and sustainable development.

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Daily Tax Calendar

No deadline today; seven sector-specific obligations are due on 20 October

The Revenue Administration calendar shows no obligation ending on 16 October. The filing and payment period for excise tax on petroleum and natural gas products for 1–15 October starts today and ends on 26 October. On 20 October, filing or payment periods end for Fire Insurance Tax, municipal entertainment taxes, Advertisement Tax, Inheritance and Transfer Tax related to games of chance, Games of Chance Tax, and Electricity and Gas Consumption Tax.

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İF Haftalık Mali Takvim

12–18 Ekim 2026 haftalık mali takvimi

12 Ekim’de 16–30 Eylül dönemi petrol ve doğalgaz ürünleri ÖTV beyan ve ödemesi ile aylık yükleme tercihli gelir vergisi mükelleflerinin Haziran e-Defter beratları; 14 Ekim’de diğer mükelleflerin Haziran e-Defter beratları; 15 Ekim’de BSMV, Ticaret Sicili Harçları, KKDF, üç ÖTV ürün grubu ve Özel İletişim Vergisi için son gün bulunuyor.

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Special Observance

Uluslararası Afet Risklerinin Azaltılması Günü

Afetlere karşı hazırlık, risklerin önceden belirlenmesi ve dayanıklılık yatırımlarının önemini hatırlıyoruz.

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Special Observance

Dünya Kırsal Kadınlar Günü

Kırsal üretim, gıda güvenliği ve yerel kalkınmada kadınların emeğini ve katkısını saygıyla selamlıyoruz.

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Special Observance

Dünya Gıda Günü

Güvenli, erişilebilir ve sürdürülebilir gıda sistemlerinin toplumsal refah için taşıdığı önemi vurguluyoruz.

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Special Observance

Dünya Yoksullukla Mücadele Günü

İnsan onurunu koruyan, kapsayıcı ve sürdürülebilir ekonomik gelişmenin önemini hatırlıyoruz.

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İF Haftalık Mali Takvim

5–11 Ekim 2026 haftalık mali takvimi

Haftanın GİB takvimindeki tek son tarihi olan 7 Ekim noter tahsilat beyannamesi ve ödeme yükümlülüğü, dönem ve kapsam bilgisiyle derlendi.

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İF Haftalık Mevzuat Özeti

28 Eylül–4 Ekim 2026 resmî mevzuat ve duyuru özeti

ÖTV tutarları, taşınmaz ticareti, SGK sağlık ve ilaç geri ödeme, lisanslı depoculuk, elektronik para ve meslek standartlarındaki gelişmeler kapsamlarıyla derlendi.

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İF Haftalık Mali Takvim

28 Eylül–4 Ekim 2026 haftalık mali takvimi

KDV-1, Konaklama Vergisi, Muhtasar vergi kesintileri, damga vergileri, SGK primleri, 7440 sayılı Kanunun 40. taksiti ve ay sonu bildirimleri kapsamlarıyla tek özette toplandı.

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İF Haftalık Mevzuat Özeti

21–27 Eylül 2026 resmî mevzuat ve duyuru özeti

MASAK, ödeme hizmetleri, dış ticaret, yeşil taksonomi, uzaktan çalışma, enerji piyasası ve SGK sağlık uygulamalarındaki düzenlemeler kapsamlarıyla derlendi.

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İF Haftalık Mali Takvim

21–27 Eylül 2026 haftalık mali takvimi

25 Eylül'de sona eren Ağustos 2026 KDV tevkifatı ile 1–15 Eylül 2026 petrol ve doğalgaz ürünleri ÖTV beyan ve ödeme yükümlülükleri tek özette toplandı.

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İF Haftalık Mevzuat Özeti

14–20 Eylül 2026 resmî mevzuat ve duyuru özeti

Gıda, hayvancılık, enerji, sağlık, finans, resmî ilan ve akıllı şehirler alanlarında yayımlanan sektörel düzenlemeler kapsamlarıyla derlendi.

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İF Haftalık Mali Takvim

14–20 Eylül 2026 haftalık mali takvimi

14 Eylül e-Defter beratları ile 15 Eylül'de sona eren Ticaret Sicili Harçları, KKDF, BSMV, Özel İletişim Vergisi ve üç ÖTV ürün grubuna ilişkin Ağustos 2026 yükümlülükleri tek özette toplandı.

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İF Haftalık Mevzuat Özeti

7–13 Eylül 2026 resmî mevzuat ve duyuru özeti

Bitkisel üretim ve hayvancılık destekleri, TRPOS faaliyet izni, Borsa İstanbul repo işlemleri ile SGK'nın 7594 sayılı Kanun ve bedeli ödenecek ilaçlar duyuruları kapsamlarıyla derlendi.

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İF Haftalık Mali Takvim

31 Ağustos–6 Eylül 2026 haftalık mali takvimi

31 Ağustos'ta sona eren Değerli Konut Vergisi, Haberleşme Vergisi, Dijital Hizmet Vergisi, Turizm Payı, VUK 464 ve 538 bildirimleri, 7440 taksiti, Gerçek Faydalanıcı bildirimi, özel tecil başvurusu ile SGK 4/a ve 4/b primleri tek özette toplandı.

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İF Haftalık Mevzuat Özeti

24–30 Ağustos 2026 resmî mevzuat ve duyuru özeti

Taksi mali cihaz süresi, ithalat rejimi, esnaf kredileri, emisyon ticaret sistemi, konaklama belgelendirmesi, konkordato gider avansı, ödeme kuruluşları, istihdam desteği ile SGK sağlık ve ilaç düzenlemeleri kapsam ve yürürlük tarihleriyle derlendi.

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İF Haftalık Mali Takvim

24–30 Ağustos 2026 haftalık mali takvimi

KDV tevkifatı, muhtasar, damga, konaklama ve KDV-1 yükümlülükleri ile petrol ve doğalgaz ürünleri ÖTV'sinin haftalık son tarihleri gün gün tek özette toplandı.

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İF Haftalık Mevzuat Özeti

Taksi mali cihazları için iki teknik kılavuz güncellendi

17–23 Ağustos haftasında taksi mali cihaz kılavuzları, ithalatta haksız rekabet, işkolları, ücretsiz seyahat gelir desteği, araç tip onayı ve fiziki altın uygulamasına ilişkin resmî düzenlemeler yayımlandı.

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Today’s Tax Calendar

17 Ağustos 2026 tarihinde sona eren 10 mali yükümlülük

Gelir ve kurum geçici vergileri, kurum geçici vergi beyannamesi ekindeki gerçek faydalanıcı bildirimi, ticaret sicili harçları, KKDF, BSMV, özel iletişim vergisi ve üç ÖTV ürün grubuna ilişkin beyan, bildirim veya ödeme süreleri bugün sona eriyor.

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İF Mevzuat Notu

Dış ticarette Temmuz 2026 belge listeleri yayımlandı

Dahilde İşleme İzin Belgeleri (D1), Yurt İçi Satış ve Teslim Belgeleri (D3), Hariçte İşleme İzin Belgeleri (H1) ile firma talebine istinaden iptal edilen D1 belgelerinin Temmuz 2026 listeleri Resmî Gazete'de yayımlandı.

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Anma

17 Ağustos 1999 Marmara Depremi

Marmara Depremi'nde hayatını kaybedenleri rahmetle anıyor; afetlere karşı hazırlığın ortak sorumluluğumuz olduğunu hatırlıyoruz.

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Yarının Mali Takvimi

Yarın 2026 II. Geçici Vergi ve sektörel yükümlülükler için son gün

17 Ağustos'ta gelir ve kurum geçici vergileri, kurum geçici vergi beyannamesi ekindeki gerçek faydalanıcı bildirimi, ticaret sicili harçları, KKDF, BSMV, özel iletişim vergisi ve üç ÖTV ürün grubunun beyan, bildirim veya ödeme süreleri sona eriyor.

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GİB Sistem

POS işlem bilgileri Dijital Vergi Dairesi'ne eklendi

GİB, Dijital Vergi Dairesi'nde Mali Bilgilerim / POS İşlem Bilgilerim yoluyla POS işlem bilgilerinin görüntülenebileceğini duyurdu.

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Official Gazette

Yıkım, proje-kontrollük ve tarım ürünü girişlerinde üç sektörel düzenleme

Binaların yıkılmasına ilişkin teknik kurallar yenilendi; proje ve kontrollük işlerinde fiyat artış oranları 1 Temmuz 2026'dan geçerli olmak üzere güncellendi; belirli tarım ürünlerinin giriş kontrollerindeki yetkili noktalar listesine yeni bir satır eklendi.

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GİB ve SGK

ÖTV tutarları ve ilaç geri ödeme uygulamasında iki gelişme

10995 sayılı Karar uyarınca akaryakıt ve LPG için uygulanacak ÖTV tutarları 11 Ağustos'ta yürürlüğe girdi. SGK ayrıca, İlaç Geri Ödeme Yönetmeliğinin bazı hükümleri hakkında verilen yürütmeyi durdurma kararlarına göre işlem yapılacağını duyurdu.

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Mali Gündem

Hazine'nin 11 Ağustos ihraç takvimi

İki yıl vadeli kira sertifikasının doğrudan satışı ile beş yıl vadeli sabit kuponlu devlet tahvilinin yeniden ihracı 11 Ağustos takviminde yer alıyor. Her iki işlemin valör tarihi 12 Ağustos 2026.

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Tax Calendar

Bugün ÖTV ve e-Defter için son gün

16–31 Temmuz 2026 dönemine ait petrol ve doğalgaz ürünleri ÖTV beyanı ve ödemesi ile aylık yükleme tercihli gelir vergisi mükelleflerinin Nisan 2026 e-Defter berat yüklemesi bugün sona eriyor.

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AYM Kararı

Özel güvenlik çalışanlarının sendika hakkına ilişkin karar

Anayasa Mahkemesi, kamu kurum ve kuruluşlarında çalışan özel güvenlik görevlilerinin sendika kurma hakkına ilişkin bireysel başvuruda ihlal kararı verdi. Karar, genel bir kanun değişikliği değil; bireysel başvuru kararıdır.

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Tax Calendar

Upcoming tax and notification obligations for 10–17 August

Excise tax on petroleum and natural gas products, April e-Ledger certificates, 2026 Q2 income and corporate provisional taxes, beneficial-owner notification and the sector-specific filings and payments due on 17 August are consolidated in one update.

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Social Security Notice

The EKDS implementation period in Ankara has ended

The Social Security Institution announced that the Electronic Identity Verification Method launched in Ankara on 2 January 2025 ended as of 5 August 2026.

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Official Gazette

Amendment to the support for converting foreign-sourced currency into Turkish lira

The date in Provisional Article 1 was extended from 31 July 2026 to 31 January 2027, effective on publication. The other amendments concerning currency conversion support take effect on 1 October 2026.

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Archive

Daily tax and social security deadline summary

All 31 July obligations in the Revenue Administration calendar, June social security premiums and the specified disaster-area deadlines were archived in one daily summary, together with the motor vehicle and annual income tax instalments.

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Legislation

Update to Special Consumption Tax amounts

An updated notice on the amounts applicable under Presidential Decision No. 10995 has been published.

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System

Provisional tax return notice

The Tax Return Preparation Program has been updated for income and corporate provisional tax returns.

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