A cash register (KKM, контрольно-кассовая машина) is mandatory in Kazakhstan for every monetary settlement for goods, works and services (денежные расчёты — the Tax Code term covering cash, card and mobile payments) by every taxpayer except the eight categories listed in Article 110(2) of Tax Code No. 214-VIII, which has been in force since 1 January 2026. The same date brought new Rules for the Application of Cash Registers (Ministry of Finance Order No. 626 of 24 October 2025) and new Requirements for the three-component integrated system (TIS) (Ministry of Finance Order No. 606 of 15 October 2025), and 19 September 2026 brings the amendments of Order No. 595 of 1 September 2026: a medical provider’s receipt must show the IIN of the recipient of the medical services (the patient), cash-register registration records are kept in the “ISNA” digital system, and the fiscal data operator must store receipt data for the tax limitation period. The change that matters most to business in 2026 is economic: the TIS-linked uplifts to the VAT registration threshold and to the simplified-declaration income limit have been abolished, the VAT threshold is 10,000 MCI (KZT 43,250,000), and the simplified-declaration limit is 600,000 MCI for everyone, TIS or no TIS.