Company Formation
Poland Business

Setting Up a Polish Subsidiary in 2026: A Step-by-Step Legal & Tax Roadmap

10 min read · Startup Harbour · August 2026

Introduction: Your Guide to Establishing a Legal Entity in Poland

For scaleups from the US, UK, and Western Europe, establishing a local legal entity is often a key milestone when expanding into the Polish market.

Whether your goal is to hire employees directly, manage local sales, or benefit from Polish tax incentives, setting up a subsidiary provides a solid and compliant foundation for long-term growth.

Although the legal and tax landscape may appear complex, the process can be straightforward with the right preparation and local expertise.

This guide explains how to establish a Polish subsidiary in 2026, comparing the two most popular legal structures for technology companies: the Limited Liability Company (Spółka z ograniczoną odpowiedzialnością – Sp. z o.o.) and the Simple Joint-Stock Company (Prosta Spółka Akcyjna – PSA).

Choosing the Right Legal Structure

Selecting the appropriate legal entity is one of the most important decisions before entering the Polish market.

Both structures provide limited liability but serve different business needs.

Limited Liability Company (Sp. z o.o.)

Your existing ICP may require adjustments for Poland.

  • Most common business structure in Poland.

  • Minimum share capital: PLN 5,000.

  • Well-established legal framework.

  • Widely recognized by banks and investors.

  • Typical registration time: 3–6 weeks.

A Sp. z o.o. is generally the preferred option for established companies seeking credibility, stability, and a familiar corporate structure.

Simple Joint-Stock Company (PSA)

  • Designed specifically for startups and technology companies.

  • Minimum share capital: PLN 1.

  • Greater flexibility for shareholders and investors.

  • Easier fundraising options.

  • Typical registration time: 1–2 weeks (online).

The PSA structure is particularly attractive for early-stage startups and fast-growing technology companies looking for operational flexibility.

Comparison

Feature

Sp. z o.o.

PSA

Minimum Share Capital

PLN 5,000

PLN 1

Registration Time

3–6 weeks

1–2 weeks

Capital Flexibility

Standard

High

Best For

Established companies

Startups & scaleups

Step 1: Prepare the Articles of Association

The Articles of Association define the company's ownership, governance structure, management board, and shareholder rights.

For a Sp. z o.o., the document is usually prepared as a notarial deed.

A PSA can often be registered online using the S24 registration system.

Step 2: Appoint the Management Board

Every Polish company must appoint at least one management board member.

Board members may be foreign nationals and are not required to live in Poland.

Step 3: Register the Company in the National Court Register (KRS)

Registration with the National Court Register (KRS) gives your company legal status.

Required documents generally include:

  • Articles of Association

  • Shareholder information

  • Management board details

  • Registration forms

Online applications are usually processed faster than traditional court filings.

Step 4: Obtain Your NIP and REGON Numbers

Following KRS registration, the company automatically receives:

  • NIP (Tax Identification Number)

  • REGON (National Business Registry Number)

These identifiers are required for taxation, accounting, and official business activities.

Step 5: Register for VAT

Although VAT registration is not always mandatory immediately, most technology companies should register early, particularly if they provide B2B services or trade within the European Union.

If your company will invoice businesses across the EU, you should also register for EU VAT (VAT-UE).

Step 6: Open a Corporate Bank Account

A Polish business bank account is required to manage local operations, receive payments, and pay employees or contractors.

Banks typically request:

  • KRS registration documents

  • NIP

  • REGON

  • Articles of Association

  • Identification documents for board members

Step 7: Register with ZUS

If your company employs staff under employment contracts, it must register with ZUS (Polish Social Security Institution) and pay mandatory employer contributions.

Step 8: Maintain Ongoing Compliance

After incorporation, companies must continue meeting Polish legal and tax obligations.

Ongoing responsibilities include:

  • Accounting and bookkeeping

  • Corporate Income Tax (CIT) filings

  • VAT reporting

  • Annual financial statements

  • GDPR compliance

  • Payroll and employment reporting (where applicable)

How StartupHarbour Simplifies Company Formation

Establishing a company abroad involves much more than completing registration documents.

StartupHarbour provides an end-to-end Concierge service that helps international technology companies expand into Poland efficiently and compliantly.

Our services include:

  • Company structure advisory (Sp. z o.o. vs PSA)

  • Company registration

  • Legal documentation

  • Tax planning

  • 9% CIT and IP Box advisory

  • Bank account assistance

  • Accounting partner introduction

  • Payroll and HR setup

  • Office and operational support

  • Recruitment and talent acquisition

With StartupHarbour managing the administrative process, founders can focus on building products, hiring talent, and growing their business.

Conclusion: Build on a Strong Legal Foundation

Setting up a Polish subsidiary is one of the most effective ways to establish a long-term presence in Central Europe.

Choosing the right legal structure, understanding tax obligations, and maintaining compliance from day one creates the foundation for sustainable growth.

With StartupHarbour guiding every stage of the process, international scaleups can enter the Polish market with confidence and avoid costly legal or operational mistakes.

FAQ

1. What is the most common company structure in Poland?

2. What is the difference between a Sp. z o.o. and a PSA?

3. How long does it take to register a company in Poland?

4. Do foreign entrepreneurs need to live in Poland to open a company?

5. Is VAT registration mandatory?

6. What documents are required to open a corporate bank account?

7. How can StartupHarbour help with company formation in Poland?

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