Stanislav Ozarchuk
Co-owner of the firm — bookkeeper
Stanislav Ozarchuk together with Andrzej Szulakowski runs Księgowość 365 for over 5 years. He specializes in bookkeeping digitalization, KSeF integration with ERP systems, e-commerce services, and helping Ukrainian entrepreneurs in Poland (PESEL UKR, JDG/Sp. z o.o. registration).
Articles by author (12 articles)
Automating Accounting with AI in 2026 — What's Possible?
Automating accounting with AI in 2026 — which processes can be automated? Available AI tools,...
DAC8 2026: EU Crypto Reporting Rules for Poland
Learn how DAC8 directive impacts crypto-asset providers in Poland from 2026. First reports due...
E-Delivery: How to Set Up a Mailbox
Step-by-step guide to setting up an E-Delivery mailbox. Learn how to register, configure...
GenAI in Polish Accounting 2026 — Risks & Guidelines
How to use ChatGPT, Claude, and Gemini safely in your Polish accounting workflow. EU AI Act...
Issue First Invoice in KSeF — Step by Step
Complete guide to issuing invoices in KSeF (Polish e-Invoice System). Profile setup, tool...
JPK_FA – What it is and who must file
What is JPK_FA? Who must file electronic invoice control files? Exemptions, deadlines, penalties...
Cryptocurrency in Business — Taxes, Accounting & Reporting...
Cryptocurrency in business operations: PIT vs CIT, when VAT applies, record-keeping, KSeF....
KSeF 2026 — Complete Guide to National e-Invoicing
Complete guide to KSeF 2026 (Krajowy System e-Faktur). Learn requirements, implementation...
KSeF for Small Businesses — Is It Worth It?
KSeF for small businesses: Is the e-invoicing system worth it? Revenue 10,000 PLN, JDG, deferral...
KSeF Outage 2026: Offline & Emergency Modes Guide
Learn how to handle KSeF downtime in Poland. Step-by-step guide to offline, offline24, and...
E-invoicing obligation — when and who does it affect in 2026?
E-invoicing obligation 2026 — when and who does it affect? KSeF implementation schedule, phases...
SEPA Instant Payments in Poland 2026 – What Firms Need to Know |...
Poland joins SEPA Instant by 2027—receive in 10 s from Jan, send from Jul. Learn how instant EUR...