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News, guides and know-how on running the books

Product updates and practical guides on KSeF, bookkeeping, HR and payroll, and running a small business in Poland.

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HR and payroll: from the first contract to the payslip

Hiring your first person brings a new set of deadlines and documents. A guide to registrations, records and the monthly payroll rhythm.

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BaseLinker integration: invoices issued for orders automatically

Marketplace orders flow into Księgowskaz and the issued document number returns to BaseLinker. How to set it up and what to verify first.

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KSeF: how to prepare your company for structured invoices

Structured invoicing changes the moment of issue, the document flow and who may act for the company. A step-by-step preparation guide.

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E-commerce accounting: receipts, returns and several channels

A shop, a marketplace and three payment gateways in one month. How to organise sales records, returns and fees so closing takes a day.

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VAT OSS: selling to EU consumers without registering everywhere

One return instead of registering in every country. When the scheme becomes mandatory, what it covers and which records it requires.

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Faster payments: how to shorten the wait for a transfer

Late payment rarely comes from bad faith. Terms, reminders, interest and bad debt relief — a practical toolkit for a small company.

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Sole proprietorship: choosing a tax form and staying compliant

Tax scale, flat rate or lump sum — what the choice really depends on, which deadlines matter, and what changes with your first hire.

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