Türkiye's Fiscal Register Rules: Who Needs One?

Short answer: every restaurant, cafe, bar, patisserie and snack bar in Türkiye that is taxed under the real regime and keeps books must use a new-generation fiscal cash register (YN ÖKC). Businesses taxed under the simplified regime and self-employed professionals are out of scope. In 2026 there is no such thing as an old-generation register: Communiqué No. 557 closed that era on 1 July 2024.

In Türkiye, first-class and second-class merchants selling goods or services at retail, meaning businesses that keep books on the balance-sheet or operating-account basis, must document every sale for which they are not obliged to issue an invoice with a fiscal cash register (ÖKC) receipt. Restaurants, cafes, bars, patisseries and kiosks sit squarely inside that definition. In 2026 the obligation effectively means one thing: a new-generation ÖKC (YN ÖKC), sold in the Turkish market as a "cash register POS". These rules are specific to Türkiye and apply to businesses registered there. This guide reflects the legislation in force as of August 2026.

Most guides you will find online are out of date. The rules changed fundamentally from 2024 onward: Communiqué No. 557 closed the old-generation device era for good on 1 July 2024, ended the "use it until the fiscal memory is full" period, and made bank card acceptance mandatory on every new-generation device. If a guide is still explaining the 2023 rules, it is pointing you the wrong way.

What is an ÖKC and where does the obligation come from?

An ÖKC is a device that produces a fiscal receipt at the moment of sale, stores transactions in a protected fiscal memory, and is certified by Türkiye's Revenue Administration (GİB). The legal basis is Law No. 3100 of 1984: first-class and second-class merchants selling at retail must document sales for which no invoice is required with an ÖKC receipt, and that receipt stands in place of an invoice for those sales. The law also grants up to 100 percent depreciation on the purchase cost and makes devices in use unseizable as long as the tax liability continues.

Only three turning points in the forty-year history matter today. In 2013, General Communiqué No. 426 under the Tax Procedure Law launched the "new-generation ÖKC" era of internet-connected devices reporting to GİB, with a staged transition completed by 2018. In 2017, Communiqué No. 483 built today's operating regime: daily Z report data flowing to GİB, mandatory integration of external POS terminals and ordering software with the register, and a ban on standalone mobile bank POS terminals. Communiqué No. 557, published at the end of 2023, then terminated old-generation devices definitively on 1 July 2024 and made card acceptance mandatory on every device. As of August 2026, that is the legal framework in the field.

Who must use one, who is outside the scope?

The boundary is drawn not by profession but by bookkeeping regime and sale type.

Two notes: a business that is not obliged but chooses to use an ÖKC voluntarily must also buy a new-generation device, never an old type. Activities exempted by the Ministry on an activity basis stay outside the scope for as long as the exemption lasts.

Two device types: EFT-POS type or PC-connected?

New-generation ÖKCs come in two main types, and this is a restaurant operator's first decision.

• EFT-POS type YN ÖKC: register and bank POS in one body. It prints the fiscal receipt, takes the card on the same device, and is portable. It is the only legal way to collect card payments at the table, at the door and on delivery; standalone mobile bank POS terminals are not allowed.
• Simple/PC-connected YN ÖKC: the counter-top register. Bank POS terminals and sales software connect to it externally; the connection standard is GİB's GMP-3 protocol.

We cover which type fits which operation in the choosing the right ÖKC device guide.

The rules in force in 2026

The core rules a restaurant or cafe operator must follow today:

1. The 30-day rule: every taxpayer starting business after 1 January 2016 must start using a YN ÖKC within 30 days of the business start date (60 days in priority development regions). Device procurement, activation and the merchant agreement all have to fit inside that window. The full sequence is in the opening a restaurant cash register checklist.
2. Card acceptance is mandatory: a taxpayer starting to use a YN ÖKC on or after 1 July 2024 must sign a merchant agreement with at least one bank or payment institution and enable card acceptance on that device within 30 days of activation at the latest.
3. 15-day deactivation: if the card acceptance obligation is not met in time, the device is closed to use within 15 days after the deadline. The same applies to a device whose merchant agreement ends and is not renewed within 15 days.
4. The Z report is electronic: the daily closing report is still produced at the end of each business day, but the obligation to print and archive it on paper was removed for new-generation devices. Report data reaches GİB through the ÖKC TSM.
5. POS and software integration: ordering software, handheld terminals and external bank POS terminals must work integrated with the register over GMP-3; every sale becomes a fiscal receipt at the register. Details in ÖKC and POS integration rules.

The current penalty amounts for breaking these rules are compiled separately in the 2026 fines list.

The real limits of the exemption

Operating without an ÖKC is possible through two narrow doors in the legislation, and neither is a door a single restaurant can walk through.

The first is the large-business exemption in article 6 of Communiqué No. 483. At the base values of 25 September 2024: meeting at least two of the thresholds of 110 million TL in sales or gross business revenue, 110 million TL in total balance-sheet assets, and 11 million TL in equity; using more than 50 YN ÖKCs; being an e-Invoice, e-Archive Invoice and e-Ledger user; documenting all sales with e-documents; and applying to GİB and receiving written approval. The amounts are indexed upward every year at the revaluation rate; the current indexed figures should be confirmed with GİB before any application. The exemption is not permanent either: a business falling more than 20 percent below the thresholds for two consecutive periods returns to the register.

The second is optional participation in the Secure Mobile Payment and Electronic Document Management System under Communiqué No. 507: participants issuing e-documents at the moment of sale through an authorized financial institution and a special integrator have no ÖKC obligation. It is a separate regime with its own conditions and cost structure; who qualifies, the exact exemption rules and how it compares with a new-generation register are covered in our guide to Communiqué No. 507 and secure mobile payment.

Common misconceptions

1. "An old device can be used until its fiscal memory is full." True between 2017 and 2023; closed by Communiqué No. 557. Using an old-generation device has been against the regulations since 1 July 2024. Many guides online still describe the abolished rule.
2. "I am an e-Invoice user, so I do not need a register." Wrong. Being an e-Invoice or e-Archive user does not create an exemption on its own; the exemption depends on the heavy conditions above plus GİB approval. The target audience is chain-store scale.
3. "If I have a bank POS, I do not need a register." They are different things. A bank POS only collects payment and produces no fiscal document. The rule runs the other way: the sale starts at the register, the amount is pushed from the register to the POS, and the receipt comes from the register. And since Communiqué No. 557 there is no card-free register either.
4. "Mobile POS terminals can take payment at the table." Since 1 October 2013, ÖKC-obliged taxpayers cannot use standalone mobile bank POS terminals; payment at the table or door is taken with an EFT-POS type YN ÖKC. Banks are obliged not to issue mobile POS terminals to these taxpayers.
5. "The 30 days start when the device is purchased." The clock runs from the business start date. Procurement, activation and the merchant agreement all fit inside those 30 days; card acceptance has its own separate 30-day window from activation.
6. "Z reports must be printed and filed." Removed for new-generation devices; the report is stored electronically and reported to GİB automatically. The paper binder is a habit from the old-generation era.
7. "A cash register POS and a bank POS are the same thing." They are not. The "cash register POS" is the market name of the EFT-POS type new-generation ÖKC: a certified fiscal device with a fiscal memory that prints receipts and carries a bank POS inside. A bank POS is only a payment terminal.

The practical meaning of all this: if your POS software cannot talk to the register, you are not operating in compliance. dojofood POS handles this through its Pavo fiscal cash register integration, turning every sale into a fiscal receipt at the register; the e-Adisyon integration is live, and QR menu ordering, recipe-based inventory and AI-assisted menu import are part of the same system. Details on the payment integrations page.

The rest of the fiscal register regime

Buying the device is where it starts; the rest of the regime sits in these pieces:

• The document side: for table-service businesses, the paper tab and its electronic form are covered in the e-Adisyon guide; the invoice limit and the e-invoice and e-archive thresholds are in e-document thresholds for restaurants.
• When the device changes hands: if you are taking over or selling a business, see the fiscal register transfer guide.
• When you close down or pause for the season: the deactivation and scrapping guide.
• A phone instead of a register: for the system under Communiqué No. 507, see the GMÖEBYS application guide.
• Tips: for VAT, withholding and social security on tips taken at the POS, see how restaurant tips are taxed; for the distribution and documentation duties, see distributing tips to staff.

Official sources

• Law No. 3100, consolidated text (mevzuat.gov.tr)
• General Communiqué No. 426, consolidated version (GİB YN ÖKC portal)
• General Communiqué No. 483, with No. 566 amendments (mevzuat.gov.tr)
• General Communiqué No. 507 (mevzuat.gov.tr)
• General Communiqué No. 557 (mevzuat.gov.tr)
• General Communiqué No. 593 (Official Gazette, 08.05.2026/33247)
• GİB New Generation ÖKC portal and FAQ

This content is for information purposes only; consult your tax advisor or certified accountant for your specific situation.