The National Catalog is not a separate database “for show.” The NTIN code is built into a business’s everyday documents: the electronic invoice, the accompanying waybill, and the cash register receipt. No code — and the chain of operations with the product starts to break.
Let’s look at exactly where the NTIN shows up, what stops working without it, and why the transition period until 1 July 2026 is not a reason to put things off but a window to prepare without stress.
Where the code shows up
NTIN as a product’s pass through document flow
- 01ESF
- 02SNT
- 03KKM receipt
- 04Marketplaces and public procurement
- Without a code you can’t issue an ESF or SNT
- The name on the receipt comes from NKT data
- Until 1 July 2026 errors in the NKT don’t block the ESF
- Marketplaces and public procurement require a correct code
Why a code in documents at all
The point of the catalog is for the state and participants in trade to see one and the same product identically. For that, the NKT code is “sewn” into key documents: through it, the data on what was produced, imported, transported, and sold comes together. This makes the movement of goods transparent from import to the checkout.
The practical upshot for a business is simple: a product without a code becomes “invisible” to the system — it’s hard to run a legal operation on it, even if it physically sits in the warehouse.
ESF: without a code you can’t issue an invoice
The electronic invoice (ESF) is the base document for wholesale and inter-company operations. With the NKT rollout, a product in the ESF must go with its code and name from the catalog. No code — no correct line in the invoice, which means the whole deal stalls.
That is exactly why manufacturers and importers go through digitization first: they put the product into circulation and are the first to issue an ESF for it.
SNT and the KKM receipt: transport and the checkout
The accompanying waybill for goods (SNT) travels with the movement and also relies on the code: without it, the product can’t be correctly entered on the waybill. And on the cash register receipt, the product name from 2026 is stated per NKT data — that is, the checkout is tied to the catalog too.
A seamless chain forms: import and production → ESF → transport under an SNT → sale and KKM receipt. The NTIN code runs through all the links, and a break in any one of them stops the operation.
| Document / channel | Role of the code | Without a code |
|---|---|---|
| ESF (invoice) | Identifying the product in a deal | Can’t issue a correct invoice |
| SNT (waybill) | Accompanying the movement | Product can’t be entered on the waybill |
| KKM receipt (checkout) | Name per NKT data | Incorrect receipt at the point of sale |
| Marketplaces, public procurement | Checking the card and code | Rejection from listing or procurement |
Transition period: time, not a reprieve
So that businesses don’t come to a halt all at once, a gradual transition was introduced: by 1 March 2026 manufacturers and importers digitize, by 1 April large chains, by 1 July small and micro business. Under the grace rule, until 1 July 2026 errors in the NKT do not become grounds for rejecting an ESF.
Reading this as “no need to hurry” is a mistake. The transition period is given for preparation: describe the product range, pass moderation, and clear errors in advance. Whoever leaves everything to the last days risks running into a moderation queue at the most inconvenient moment.
What to do so you don’t come to a stop
The minimal plan is to assess which products are not yet in the catalog, assign someone responsible for digitization, issue or verify the EDS, and allow time for moderation before your deadline. Separately, check the requirements of marketplaces and public procurement if you work there: a correct code is checked strictly.
If the product range is large, it’s wiser not to stretch it across internal resources but to hand digitization over turnkey — that way a code appears on every item by the deadline, and sales and document flow don’t stop.
Quick checklist
- Check which products are not in the catalog
- Assign someone responsible for digitization
- Issue or update the EDS
- Account for marketplace and public-procurement requirements
- Allow time for moderation before 1 July 2026
- Verify that codes are pulled into the ESF, SNT, and receipt
What to do next
WS Tech gets your catalog ready for 2026: we digitize goods and obtain NTINs turnkey so your ESF, SNT, and receipts go through without failures or a halt in sales.
This article covers: NTIN ESF, NKT SNT receipt, NKT code required 2026, product marking Kazakhstan, NKT transition period.