Poland is preparing for a wave of legal and digital reforms in 2026 that will reshape how businesses operate, report, and communicate. Three major initiatives: KSeF e-invoicing, JPK CIT structured tax reporting, and wage transparency are set to take effect, with implications for finance, HR, and compliance teams across the country.

KSeF E-Invoicing: Mandatory Rollout Begins

The Krajowy System e-Faktur (KSeF) will become mandatory for issuing and receiving only structured invoices in XML format via KSeF portal.

February 1, 2026: Mandatory for large enterprises (2024 turnover > PLN 200 million).
April 1, 2026: Mandatory for all other entities.
January 1, 2027: Micro-enterprises (monthly sales < PLN 10,000) join the system.

KSeF aims to:

Automate invoice processing.
Enable real-time tax monitoring.
Continuous transaction control.
Reduce VAT fraud.

Transitional features like Offline24 mode, QR-coded invoices, and exemptions for cash register invoices will be available through 2026.

CIT SAF-T: Structured Corporate Tax Reporting

Starting January 1, 2026, most CIT and PIT taxpayers must submit JPK CIT files—structured reports detailing financial and tax data.

Key changes:

Mandatory alignment with Ministry of Finance schemas.
System-to-system reporting
Increased visibility into company operations for tax authorities. JPK CIT will be used to detect aggressive tax optimization, cross-check data with KSeF and JPK_VAT, and flag inconsistencies for audit.
Simplified submission for CIT declarations, faster communication with fiscal authorities and reduced risk of errors in tax settlements.

Wage Transparency: A New Era of Pay Equity

Driven by EU directives and local reforms, Poland is moving toward greater wage transparency.

Expected developments:

Salary ranges in job postings.
Internal pay audits and reporting obligations.
Legislative drafts anticipated in late 2025 or early 2026.

Companies are encouraged to review compensation structures and prepare for disclosure requirements.

What Should Businesses Do Now?

Companies should:

Audit invoicing and accounting systems for KSeF and JPK CIT readiness.
Map the financial data to comply with the requirements.
Apply new business processes to align with the changes.
Train staff on new reporting formats and compliance protocols.
Begin internal reviews of wage structures and equity policies.

These reforms represent a digital and procedural transformation. Early preparation will ensure compliance and competitive advantage in the evolving Polish business landscape.

How Leinonen Poland Can Help

Leinonen Poland supports businesses by implementing KSeF and JPK CIT-compliant systems, aligning financial reporting with regulations, and advising on wage transparency obligations. Our team ensures your organization is fully prepared for the 2026 reforms. Contact us to discuss tailored solutions for your business.