Accounting that gives you peace of mind.
Full bookkeeping, payroll and tax advisory services — from sole traders to limited companies. You run the business, we handle the rest.
New office.
Fresh approach.
Full service.
100%
Online — no paper, no office visits
24h
Maximum response time on business days
OC
Mandatory professional liability insurance
Our services
Sole trader bookkeeping (KPiR & flat-rate)
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HR & payroll
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Tax advisory
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KSeF implementation
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Representation before tax & social security offices
Dowiedz się więcejFull bookkeeping, payroll and tax services for businesses of all sizes.
All services
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Zmiana biura rachunkowego jest prostsza, niż myślisz.
Pomożemy na każdym etapie.
Heading towards good accounting.
Dedicated account manager, online document exchange and constant support — without unnecessary formalities.
- Dedicated accounting manager on your team
- Representation before tax & social security offices in current matters
- 100% online — documents, KSeF, invoices
Our team.
Meet the people you will trust with your company accounting.
Anna Kowalska
Księgowa
Marek Wiśniewski
Specjalista ds. kadr i płac
Katarzyna Nowak
Doradca podatkowy
Tomasz Zieliński
Opiekun klienta
We opened in February 2026. Trust takes years to build — we are just getting started. Be one of the first clients who trust us. After a year of working together, we will gladly place your review here.Skontaktuj się z nami
Let's talk about your company's accounting.
Frequently asked questions
Answers to questions we hear most often from entrepreneurs.
The price depends on your business structure, the number of documents and the scope of services. After a short conversation we will prepare an individual quote. The free consultation does not commit you to anything.
Yes. We handle both the KPiR (revenue and expense ledger) and lump-sum taxation for JDG (sole proprietorships), as well as full accounting for sp. z o.o. (limited liability companies). We treat every business individually — no off-the-shelf solutions.
Yes. We handle both the KPiR (revenue and expense ledger) and lump-sum taxation for JDG (sole proprietorships), as well as full accounting for sp. z o.o. (limited liability companies). We treat every business individually — no off-the-shelf solutions.
Yes — we will help you do it. We will take over the documentation from your previous office, check that your settlements to date are correct and ensure a smooth transition without a single day's break in service.
We are a new office, but not new accountants. The TAX NINJA team consists of experienced specialists who, before founding the office, spent years working with SMEs. We hold the mandatory professional liability (OC) insurance for accounting offices. For you, the office's freshness means modern processes, short response times and an individual approach — without the baggage of old habits.
Yes. We support clients in preparing their business for the mandatory KSeF (National e-Invoicing System) — from configuring the software, through integration with our accounting service, to training your staff.
Yes. Under the accounting service agreement, we represent clients in day-to-day matters before the US (tax office) and ZUS (Social Insurance Institution). We also provide support during tax inspections.
Yes. Under the accounting service agreement, we represent clients in day-to-day matters before the US (tax office) and ZUS (Social Insurance Institution). We also provide support during tax inspections.
