A Warsaw-based software company closes a Series A round and immediately faces a familiar problem: how to retain the engineers who built the product. Cash salaries alone rarely hold senior technical talent. Employee share ownership plans (ESOPs) offer a structured alternative – but Polish law does not provide a single, ready-made ESOP framework. Founders must assemble one from several corporate instruments, each with different tax, registration, and vesting consequences.

Polish startups typically implement ESOPs through one of three vehicles: phantom shares (virtual equity), warrants attached to new share issues under the Kodeks spółek handlowych (Commercial Companies Code, KSH), or direct share transfers in a spółka z ograniczoną odpowiedzialnością (limited liability company, sp. z o.o.). Each route triggers different obligations before the National Court Register (KRS) and carries distinct income-tax treatment for beneficiaries. Founders who delay structuring risk losing key hires to competitors who already have plans in place.

This alert covers the three main structuring options, the thresholds and deadlines that matter most, and the immediate actions a Polish startup should take before its next funding round or hiring cycle.

What are the main ESOP vehicles available under Polish law?

Polish law offers no single statute labelled "ESOP." Founders choose between three instruments, each suited to a different stage and ownership structure. The choice determines tax exposure, KRS filings, and how cleanly the plan survives a future M&A Poland transaction or due diligence Poland review.

Phantom shares are contractual rights to a cash payment linked to company value. They require no KRS registration and no amendment to the company's articles of association. Settlement is taxed as employment income at the time of payout – up to 32% for amounts exceeding PLN 120,000 per year. Phantom plans are fast to implement but create a cash liability on the balance sheet, which can complicate later fundraising.

Warrants and conditional share rights under the Commercial Companies Code allow a startup to reserve new shares for employees at a fixed price. Issuing warrants in a sp. z o.o. requires a shareholder resolution and a KRS filing, typically completed within 7 days of the resolution. Tax arises only on the sale of shares, not on vesting – a significant advantage for employees expecting a future exit.

Direct share transfers work best in early-stage companies where a small founding team wants to give equity immediately. Each transfer requires a notarised deed and a KRS update. The employee receives shares at fair market value; any discount is taxed as income in the year of transfer. This route is straightforward but loses flexibility once the cap table grows beyond five or six holders.

  • Phantom shares: no KRS filing, cash-settled, income tax on payout
  • Warrants: KRS filing required, equity-settled, tax deferred to exit
  • Direct transfers: notarised deed, immediate equity, discount taxed on receipt
  • Virtual options in a joint-stock company (spółka akcyjna, S.A.): suited to pre-IPO stage, requires supervisory board approval

We helped a Mazowieckie-based SaaS company implement a warrant-based ESOP covering 12 engineers ahead of a Series B close (autumn 2025). The plan was registered with the KRS within 10 days and survived investor due diligence without amendment.

Who is affected and what are the critical thresholds?

Any Polish startup with employees or contractors who receive equity-linked compensation is affected. The thresholds that trigger compliance obligations are specific. Missing them forfeits tax advantages and can expose founders to personal liability under Polish corporate legislation.

The PLN 120,000 annual income threshold is the most important number to track. Above that level, the marginal rate on employment income rises to 32%. A phantom plan that vests above this threshold in a single tax year can cost a beneficiary roughly twice as much in tax as a warrant plan settled at exit. Structuring the vesting schedule around this threshold is one of the first decisions a law firm Warsaw practice should address.

For warrant plans, the Commercial Companies Code sets a hard limit: new shares issued under a conditional capital increase cannot exceed 10% of the existing share capital without a qualified shareholder vote. Exceeding this limit without the correct resolution precludes registration and invalidates the entire issuance – an irreversible consequence that requires a fresh shareholder meeting and a new KRS cycle.

Foreign investors conducting due diligence Poland-style will scrutinise the ESOP structure carefully. Plans that were implemented informally – without KRS registration or proper tax documentation – are a common red flag in Polish M&A transactions. Investors from the Czech Republic and Germany routinely request a clean ESOP register as a condition of closing.

Non-compete obligations attached to ESOP vesting schedules add another layer. Polish employment law limits the enforceability of post-employment non-competes. A clause that ties equity forfeiture to a non-compete exceeding 12 months may be challenged. Our team recently advised a Silesian tech company on restructuring its vesting forfeiture provisions to align with non-compete enforceability standards under Polish law (winter 2025).

What immediate actions should founders take now?

Three actions matter most in the next 30 days. Each addresses a specific gap that becomes harder to fix after a funding round closes or a key employee resigns.

  • Audit existing arrangements: identify any informal equity promises and document them in writing before the next KRS filing cycle
  • Choose the correct vehicle: phantom shares for speed, warrants for tax efficiency, direct transfers for founding-team alignment
  • File KRS amendments: warrant plans require a shareholder resolution and registration; delays beyond 7 days create a gap in the corporate record
  • Review foreign investment screening obligations: if a non-EU investor participates in the ESOP round, the Polish Office of Competition and Consumer Protection (UOKiK) may require notification under Polish foreign investment screening rules

Founders who set up company Poland structures through a sp. z o.o. should also check whether their articles of association permit conditional capital increases. Many standard articles drafted at incorporation do not include this provision. Adding it requires a notarised amendment and a new KRS entry – a process that takes 2 to 4 weeks and cannot be rushed once a term sheet is signed.

The window to implement a clean ESOP before a funding round is narrow. Investors expect the plan to be registered, documented, and tax-compliant on day one of due diligence. Structuring after a term sheet arrives is possible but costly – both in legal fees and in negotiating leverage.

Every startup that delays ESOP structuring past its first significant hire risks one outcome: a key engineer leaves, joins a competitor with a working equity plan, and takes institutional knowledge that cannot be replaced before the next product milestone.

Your company's specific situation – cap table size, employee count, investor nationality, and planned exit timeline – determines which instrument fits. Choosing the wrong vehicle now precludes the tax-efficient exit your team is working toward.

To receive an expert assessment of your ESOP structure and its readiness for investor due diligence, contact info@kordeckipartners.com.

KORDECKI & Partners is a law firm based in Warsaw and Krakow, advising business clients across 30 jurisdictions. Our team combines expertise in Polish and international law with a practical approach to ESOP structuring, M&A transactions, and corporate governance for startups and tech companies. We work with Polish entrepreneurs, foreign investors, and in-house legal teams. To discuss your situation, contact info@kordeckipartners.com.

Disclaimer: This publication is provided for informational purposes only and does not constitute legal advice. The information herein should not be relied upon as a substitute for professional legal counsel tailored to your specific circumstances. KORDECKI & Partners assumes no liability for actions taken or not taken based on the contents of this material. For advice regarding your particular situation, please contact info@kordeckipartners.com.