Glossary and abbreviations

What?

The On this page box below is the full list of terms; jump to the word you're looking for from there. The # mark next to each term's heading gives that term's direct address — useful when you want to link someone to it.

Three commonly confused pairs first:

How?

These terms show up inside the apps as column names, tab names, or badges. There's no separate glossary screen inside the products — the glossary lives here, on the web. Where you'll see each term is below.

🖥️ Desktop

1. Column names The columns in the main list carry most of the terms: Date, Receipt No, Merchant, VKN/TCKN, Tax Base, VAT%, VAT, Total, Currency, Payment, Category, License Plate, Rule, Confidence, Note.
2. Queue terms In the table on the 🕒 Pending tab you'll see the Status and Lane columns — both are defined below.
3. The guided tour The ❓ Guide button at the top right walks through the buttons one by one. If you're wondering what a button does, this is the fastest way to find out.

🌐 Web panel

1. Receipt fields My Receipts → click a row: in the Receipt Detail window, the merchant, date, receipt no, tax base, VAT, total, and category fields sit side by side.
2. Queue and quota The Queue Status card on the Transactions page shows the queue terms on screen, and the Image Archive card above My Receipts shows the quota terms.
3. Membership terms Plan, subscription period, and storage subscription appear in the Payment tab; consent preferences appear on the Settings page.

📱 Mobile

1. Camera modes The strip below the Camera screen has Receipt, Manual, and QR Code modes; Multi mode unlocks on Premium and Premium Office.
2. Row badges In the Review tab, each receipt shows reading, read, already added, or ⚠ low confidence — rescan next to it.
3. Field names Tap a receipt in the My Receipts tab; the field labels in the edit form (Tax Base, VAT, Total…) are the same as the ones in this glossary.

Receipt and document terms

Receipt, invoice, receipt no (fiş, fatura, fiş no)

A receipt (fiş) is the small document you get from the register; an invoice (fatura) is a document issued in the buyer's name. LA Fish records both, and you can see the difference in the fields. Receipt no (document no on some documents) is the sequential number on the document: it's unique at that specific store, but the same number can very well show up at a different store. That's why it isn't enough on its own for duplicate checking.

e-Arşiv / e-Fatura (e-Archive / e-Invoice)

Documents whose original is issued electronically, even if a paper copy is printed. They usually carry a QR code and an ETTN. If the desktop app notices these documents after reading, it opens the e-Arşiv / e-Fatura — Exclude window and asks you which ones to remove from the list; none of them are deleted automatically.

ETTN

Universal Unique Identification Number (Evrensel Tekil Tanımlama Numarası). A long identifier given to electronic documents that is unique nationwide. It has two jobs in LA Fish: filling in fields without errors, and serving as the primary key in duplicate receipt checking. If both records have an ETTN and they match, these are definitely the same document; if they differ, they're separate documents even if they're from the same day, the same store, and the same amount.

QR code (karekod)

The square-patterned code on the receipt. Because the document's fields are written into it, reading it returns the date, tax ID, tax base, VAT, and total with no room for reading error. On mobile, QR Code mode reads this directly. Some QR codes don't carry data, only a web link — in that case the app directs you to Receipt mode, because the amount and date aren't inside the code.

Line item (kalem)

The individual product rows on a receipt ("bread," "fuel," "coffee"). The receipt's total is the sum of its line items. Line items are used in category assignment and in splitting mixed receipts; if a receipt has more than one VAT rate, the split also shows at the line-item level.

License plate (plaka)

On fuel receipts, the vehicle's license plate is expected to be written on the document. Desktop has a separate License Plate column for this, and smart accounting rules raise a flag when they see a fuel receipt with no plate. The decision is yours (or your accountant's) to make.

Tax and accounting terms

VAT, VAT rate (KDV)

Value Added Tax (Katma Değer Vergisi). It sits on the receipt as two separate numbers: VAT rate (a percentage, the VAT% column on desktop) and VAT amount (money, the VAT column). A receipt can have more than one rate; in that case each rate is carried as a separate row.

Tax base (matrah)

The amount on which the tax is calculated — in short, the amount excluding VAT. The rule is simple: tax base + VAT = total. If these three don't add up, LA Fish warns you and lets you choose which one to recalculate; it doesn't change a number on its own.

VKN / TCKN (tax ID / national ID)

VKN is the tax ID number (10 digits, for companies), TCKN is the national ID number (11 digits, for individuals). This is the field that identifies the merchant on the receipt; the column name on desktop is VKN/TCKN. It's used in duplicate checking and merchant matching, which is why reading it incompletely triggers a warning.

Taxpayer, company record (mükellef)

The person or entity liable before tax law. In LA Fish the same word also appears as the name of a record: if you're collecting receipts for more than one business, each one is a separate company / taxpayer record, and receipts are split according to this record. How many records you can keep depends on your plan — see Pricing and Company / taxpayer separation.

GİB, Defter-Beyan

GİB is the Revenue Administration (Gelir İdaresi Başkanlığı), Turkey's tax authority. The Defter-Beyan System is GİB's bookkeeping and filing platform. LA Fish fills in the bulk expense template you download from Defter-Beyan with your receipts; you upload the file to the system — LA Fish doesn't connect to GİB and doesn't create records on your behalf. See Exporting with the Defter-Beyan template.

SMMM / YMM (certified public accountant)

SMMM is a Certified Public Accountant (Serbest Muhasebeci Mali Müşavir), YMM is a Sworn-in Certified Public Accountant (Yeminli Mali Müşavir) — Turkey's licensed accounting professionals. They're the ones who decide whether an expense gets recorded, which account it's booked to, and how the tax is filed. LA Fish prepares the document and flags what looks suspicious; it doesn't make the decision.

Reading and data terms

OCR

Optical Character Recognition — reading text out of an image. The general name for technology that converts text in an image into machine text. In LA Fish it's the first step that extracts the merchant, date, and amounts from the receipt's photo.

Local reading (yerel okuma)

Reading the receipt on your own device: your computer does it on desktop, your phone does it on mobile. It doesn't need the internet, the result comes back instantly, it doesn't enter a queue, and it doesn't spend an allowance. It's more sensitive to lighting and paper quality.

AI reading (yapay zeka ile okuma)

Reading the receipt in the cloud. It gives the best result on the hardest receipts; in exchange, it needs the internet, enters a queue, and is deducted from your monthly allowance. It's on every plan; the monthly allowance depends on your plan (10 documents on Free, 100 on Standard, 1,000 on Premium, 5,000 on Premium Office) — see Pricing for coverage.

Queue, lane, status (kuyruk, şerit, durum)

Queue is where receipts sent to AI line up; it exists so the app doesn't freeze and make you wait. Status tells you where a job is: Queued, Processing, Completed (waiting), Received, Error. Lane is which path the job takes: a small number of receipts goes through the Fast lane, a large number through the Batch lane. Details: Reading and approval.

Confidence score (güven skoru)

A percentage showing how confident the reading is; it sits in the Confidence column on desktop and can't be edited by hand. The ⚠ Only uncertain ones box on desktop filters receipts with confidence below 60% or a missing key field like date/total/tax ID. On mobile the same situation shows up in the row as a ⚠ low confidence — rescan warning. The score is a probability, not a guarantee: a receipt with a high score can still have an error.

Duplicate receipt (mükerrer fiş)

The same document being added a second time. LA Fish catches this at three levels: the same image, the same ETTN, or the same "receipt signature" (date + receipt no + tax ID + total). No new receipt is opened for a caught record and your AI allowance isn't spent a second time; it shows on screen as "duplicate skipped" or "already added."

Category (kategori)

The type of expense: food, transport, office, fuel, services, and so on. It's suggested by looking at the merchant name and line items, and you can change it. Reports and accounting exports rely heavily on this field — a wrong category means a wrong report.

Rule status (kural durumu)

The flag that smart accounting rules give a receipt; it shows in the Rule column on desktop and isn't written by hand — the rules calculate it. It fills in when an amount limit is exceeded, when a receipt looks suspicious, or in cases like a fuel receipt with no license plate. This is a flag, not a verdict: it doesn't delete the receipt, it asks you to take a look. The rule engine is a Premium Office feature.

Account, plan, and archive terms

Plan (membership)

The membership tier that determines which features are unlocked: Free, Standard, Premium, and Premium Office. The receipt archive, on-device reading, search, and reports are on every plan; the AI reading allowance, exporting, multi-receipt, and the number of individuals/organizations vary by plan. Sending directly to accounting, smart accounting rules, and accounting-software file templates are on Premium Office only (available in Turkey only). Ads are shown only on the Free plan. The single source of truth for coverage and prices is the Pricing page.

Base plan (taban plan)

This is a store term, not a LA Fish term. On the App Store and Google Play, a subscription's payment options (monthly, yearly) are called a base plan: it's the same product, only the payment schedule differs. When you're subscribing from your phone, the "monthly or yearly" choice is actually a base-plan choice; it doesn't change your LA Fish plan (Standard, Premium, or Premium Office).

Subscription period (abonelik dönemi)

The span of time your payment covers — from the payment date to the next renewal date. It has two important consequences: if you cancel your subscription, your rights last until period end (after that, your account continues on the Free plan), and for web subscriptions, a scheduled downgrade to a lower tier takes effect at period end. For store subscriptions, the store determines the timing; details: Membership and payment. It has no connection whatsoever to the tax/filing period.

Free trial (ücretsiz deneme)

A 3-day period for trying Premium without an initial charge (30 AI readings a day; Premium Office has no trial). If eligible, you can choose it after verifying your account; it does not start automatically. On the web, it starts with a payment method and billing begins when the trial ends unless automatic conversion is turned off. On mobile, the store's trial and renewal terms apply. A trial doesn't count as an active paid subscription: for example, buying a storage subscription requires an active Standard, Premium, or Premium Office membership. If you do not move to a paid plan, your account continues on the Free plan: paid features become unavailable, but your receipts remain.

Allowance (hak)

How many transactions you can do in a period. The most talked-about one is the AI reading allowance: every AI reading deducts one unit of allowance, local reading doesn't. If you cancel a job from the queue before it has started, the allowance is refunded; if reading has already started, it isn't. The size of your allowance depends on your plan.

Quota (kota)

The space (in GB) set aside for your images in the cloud archive. A receipt's data (merchant, date, amount, line items) doesn't count against quota and is stored without limit — the only thing that spends quota is receipt images. When the quota is full, your receipt is still saved, just its image isn't stored. Every plan comes with a base quota; the indicator already tells you "used / total." Details: Storage quota.

Storage subscription (depolama aboneliği)

A monthly add-on subscription that raises your quota to 5 GB; it requires an active Standard, Premium, or Premium Office membership. It replaces the quota, it doesn't add on top: if you subscribe, your quota becomes 5 GB, not your plan's base plus 5 GB. If you cancel the subscription, images that no longer fit the base quota are deleted starting from the oldest once the period ends.

Cloud archive (bulut arşivi)

The single shared store on the server where your receipts are kept. All three apps see the same archive: a receipt you capture with your phone is there when you open your computer. The archive doesn't work until you turn it on — no receipt is permanently written to the cloud without your explicit consent.

Sync (senkron)

Bringing the list on your device into line with the cloud archive. The web panel and mobile sync instantly over a live connection; desktop both sends instantly and also does a full sync at regular intervals. Desktop is local-first: it keeps working without a connection and sends up the changes that piled up once the connection returns.

Lock and version control (kilit, sürüm kontrolü)

Two layers that prevent data loss when the same receipt is edited on two devices at once. Lock: the moment you open a receipt's detail on web or mobile, that receipt is locked in your name and becomes read-only on other screens; the lock is short-lived and refreshes as you edit, and it drops on its own when you close the screen. Version control: every receipt has a version number, and when saving, it checks "is the version I started with still current?" Desktop also works offline, so it isn't subject to the lock — version control protects it instead.

Explicit consent (açık rıza) — KVKK

The permission you give, informed and of your own free will, for your personal data to be processed for a specific purpose. Because receipts contain personal data, the cloud archive depends on this: if you don't give consent, the archive doesn't turn on; if you withdraw it, new receipts stop being archived. You can turn this consent on and off from either app — see Settings and KVKK and the Disclosure Text.

Export terms

Exporting (dışa aktarma)

Getting the receipts you select onto your own computer as an Excel or CSV file. You move the file yourself: you email it, upload it to accounting software, or keep it. It's available on Standard and above, not on the Free plan. See Exporting.

Export template (aktarım şablonu)

The choice that determines what order the columns come out in when exporting. Universal (All Fields) carries every field and isn't specific to any program; templates specific to accounting software convert the column names into what that program expects. If you're not sure who's going to use it, Universal is the safest choice. Universal and CSV are on Standard and above; accounting-software templates are on Premium Office only — see Pricing.

Sending to accounting (muhasebeye gönderme)

Transferring receipts straight into accounting software without downloading a file. The difference from exporting is that there's no file to move in between. Direct sending is on the Premium Office plan only; on Standard and Premium you get your receipts as a general Excel or CSV file by exporting. See Sending to accounting.

Report (rapor)

The summarized form of your receipts: expense and VAT totals by month, category, or merchant, with chart-based output. A report doesn't generate new data, it totals up existing receipts — so an uncorrected field is also reflected incorrectly in the report. Reports are available on all plans.

Why is it like this?

Related pages

Last updated: 2026-10-06