ÖKC in hotel outlets: fiscal devices, room charges and invoices

An ÖKC (ödeme kaydedici cihaz, payment recording device) is the fiscal cash register at a point of sale: it prints a receipt for the sale made at that outlet, and that receipt documents the outlet sale for the outlet's own reconciliation and tax reporting. It is not the same document as the guest's fiscal document for the stay, which is normally issued at check-out as an invoice or an e-document (e-Fatura or e-Arşiv, electronic invoice). In a hotel, a sale paid at the outlet and a sale charged to the room usually end in different documents, so each outlet needs one agreed path.

A waiter takes an order, the guest says "put it on the room", and the restaurant's fiscal device stays silent. At check-out the guest bill closes. Whether that dinner ends up with a fiscal document depends entirely on what happened between those two moments. This article explains the two paths a hotel sale can take, where double and missing documents come from, how the all-inclusive boundary fits in, and what the night audit should compare every morning.

What is an ÖKC in a hotel outlet?#

An ÖKC is the fiscal cash register at a point of sale. It prints a sales receipt for a sale where no invoice is required, and that receipt takes the place of an invoice for that sale.

The duty comes from Law No. 3100, published in the Official Gazette on 15 December 1984. As the consolidated text on the Presidency of the Republic of Türkiye's Mevzuat Bilgi Sistemi (1 November 2026) (opens in a new tab) states, first- and second-class merchants who sell goods to, or serve, people other than resellers must use payment recording devices such as electronic cash registers. Each device must give a receipt for every sale and a daily closing receipt, and it records the totals in a fiscal memory. That memory is what separates a fiscal device from an ordinary till.

Outlet by outlet means each outlet that runs a device keeps its own totals: the restaurant's day total is not the bar's day total, and neither is the hotel's. The device documents a sale. It does not decide the price, the package, the discount or the room charge; those live in the hotel's own systems and in the hotel's own rules.

The law sets a general duty. It does not tell you which of your outlets needs a device, whether an electronic alternative applies, which model to buy, or how card terminals sit next to it. Those answers come from your accountant and your tax office.

Two paths for one sale: paid at the outlet or charged to the room#

The path is decided by one question at the moment of sale: is the guest paying now, or is the amount going onto the room bill? Everything after that question follows from the answer.

Path one, paid at the outlet: the guest pays at the counter, the device prints a receipt at that moment, and the sale is closed inside the outlet. Path two, charged to the room: the guest signs a room-charge slip, the amount is posted to the guest bill (folio), and the fiscal document follows the check-out path your accountant has set up, commonly an invoice or an electronic document covering the stay. This connects to the four steps every stay involves in Türkiye: payment, fiscal document, guest identity notification and personal data.

The room-charge slip is an internal document. It moves an amount from one place in the hotel to another; it is not the fiscal document for the sale. The rule to hold in every outlet is one sale, one fiscal document. Two documents for one dinner is as wrong as none.

The decision is made by a person, not by software. A waiter who posts a charge to the room and also takes payment creates the double case described in the next section. Write the rule down outlet by outlet and train for it before the season. Seasonal teams rotate faster than the rule does.

Where do double or missing documents come from?#

Almost always from the same place: the outlet and the front office each assume the other one finished the job.

A double document is a receipt printed at the outlet and the same amount also posted to the room. The guest is charged twice, or the hotel declares one sale twice. A missing document is the opposite: the amount is posted to the room but the folio closes without a document covering it, or the charge disappears when the folio is corrected.

The informal fix is the worst case. A receipt printed by mistake is set aside and no charge is posted, leaving a permanent gap between the device total and the ledger. Corrections should be voids and reversals that leave a record on both sides, never deletions. A deleted line cannot be reconciled by anyone later. When documents are issued at check-out, this is also where checking hotel e-invoices before they are sent belongs: a wrong document sent is harder to fix than one held for review.

The midnight edge deserves attention too. A sale at 23:55 posted to the room at 00:05 lands in a different business day, so the outlet total and the room charge never meet in the same night audit. And the complimentary item: whether a waived or comped item carries a document or tax consequence is a question for your accountant. It is not a decision for the outlet manager at the table.

Outlet by outlet: restaurant, bar, spa, minibar, shop#

The risk concentrates wherever the guest is not standing at a till, because there the charge exists only if a member of staff posts it.

The restaurant combines table service and routine room charges. Split bills, tips and shared starters make the posted amount differ from the order, so the check is on the total, not on the item. The bar carries fast turnover and many small sales, and the highest chance of a receipt skipped because the guest is already leaving. The spa is appointment-based and often sold as a package, so one treatment can be split between an outlet payment and a room charge days apart.

The minibar usually has no device at the point of sale. Housekeeping posts the amount to the folio, so the question is whether the posting happens at all, and who checks it. The shop sells goods rather than serving food, so the document question differs from a restaurant's; ask your accountant which path applies. Included meals, finally, are not a separate sale at the outlet: breakfast inside the room rate produces no outlet document, and it should stay out of the outlet's revenue figures.

All-inclusive hotels: which extras are charged, and on which path?#

Anything inside the package is not a sale at the outlet. Anything outside the package is a sale, and it follows one of the two paths.

Write the boundary down: what the wristband covers, outlet by outlet and item by item. If it is not written, staff invent it at the table. Typical extras include premium drinks, à la carte restaurants, spa treatments, late check-out, transfers and in-room items.

The boundary must be identical in three places: the menu or price list, the point-of-sale screen and the folio. A mismatch produces disputes at check-out and adjustments nobody can document. Staff discretion is the gap: a waived charge is a revenue decision, not a courtesy, and it needs a named approver and a record. Whether a complimentary item carries a tax consequence is for your accountant, not for the outlet deciding by habit. Keep package revenue and extra revenue apart in reporting, as discussed in separating room and board revenue in all-inclusive hotels, so the outlet's numbers mean something to the person reading them.

What does the night audit check between outlet sales and device totals?#

It compares three numbers per outlet: what the device recorded, what was posted to rooms, and what the ledger says the outlet sold.

Collect the daily closing receipt from every device. It carries the day's totals from the fiscal memory, which is the number you cannot edit afterwards. Pull the posting report per outlet from the hotel system: every amount charged to a room, with room number, time and outlet. Compare outlet by outlet, never in one hotel-wide figure. A bar short and a spa over cancel out in a total and hide both problems.

Investigate every difference above a threshold you set in advance, and write down the finding even when the answer is "posted to the wrong outlet". Check both directions: room charges that no outlet record supports, and outlet records with no room posting. Review folios that closed at zero and folios corrected on the same day, since both are where a charge goes to disappear. Do the work before the business day is closed. After the close, the numbers are history and the correction is an adjustment.

Which questions should you settle with your accountant and device provider before the season?#

Settle the setup in writing before the season opens, because in July every answer costs a service interruption.

Ask per outlet, not for the hotel as a whole: which outlets need a device and which need a different document. Ask how a room charge is documented at check-out, and what exactly the guest receives for it. Ask how a correction is made on the device and in the folio, and who in the hotel is allowed to make it. Ask how device totals reach accounting each day, in what form, and who reconciles them against posted outlet revenue. Ask what procedure applies when a device is offline or broken, and who decides to stop selling at that outlet. Finally, ask who trains seasonal staff on the two paths, and how the rule is tested in the first week rather than at the first complaint.

If your guests and agencies are invoiced electronically after check-out, the document side of these questions connects to e-Fatura versus e-Arşiv when invoicing guests and agencies.

What to do next#

Pick one outlet this week, write down its two paths on a single page, and compare last night's device total with the room charges posted from that outlet. Then take the questions from the last section to your accountant and your device provider before the season, not during it.