Is an Electronic Signature Legally Valid in Poland? (2026)

Yes. An electronic signature is legally valid in Poland. Poland is an EU member state and applies the EU eIDAS Regulation directly, so electronic signatures are recognised, and a qualified electronic signature has the same legal effect as a handwritten signature. For most business contracts an electronic signature is enough and cannot be rejected in court only because it is electronic. This is general information, not legal advice. The rules and standards change, so check the current position before relying on any point below. ## The law that governs e-signatures in Poland The core rule is Regulation (EU) No 910/2014, known as eIDAS, which applies directly in Poland. It defines electronic signatures and the trust services that support them. Poland adds national rules through the Act of 5 September 2016 on Trust Services and Electronic Identification, which supplements eIDAS and deals with supervision and national matters. The Polish Civil Code supplies the general rules on form. Under Polish law, a written form sometimes carries specific consequences, so matching the signature type to the document form matters. <!-- [VERIFY] the exact provisions of the Act of 5 September 2016 and the Civil Code form rules before citing specific articles --> ## The three types of signature eIDAS sets a tiered model, which Poland follows. - Simple electronic signature. Electronic data used to sign, such as a typed name, a scanned signature or clicking to accept. It is valid, with weight that depends on the surrounding proof.

• Advanced electronic signature. Uniquely linked to the signatory, capable of identifying them, created with means under their sole control, and tied to the data so later changes can be detected.
• Qualified electronic signature. An advanced signature made with a qualified signature creation device and based on a qualified certificate from a qualified trust service provider. Only this type is automatically equal to a handwritten signature. Poland also runs a widely used public identity tool, the trusted profile (profil zaufany), for dealings with public administration. ## When you need a stronger signature For most commercial agreements a simple or advanced signature works, and the parties can agree the method. A qualified signature becomes necessary where Polish law requires a specific written or qualified form, where a public authority requires it, or where the value of the deal makes strong identity proof worthwhile. Some acts under Polish law require a qualified electronic signature to meet the statutory written form electronically. ## What you usually cannot sign electronically eIDAS leaves form requirements for certain acts to each member state. In Poland, documents that typically still need a paper signature, a notary, or a special form include: - Wills and most succession documents.
• Many family law acts.
• Transactions that require a notarial deed, such as certain real estate transfers.
• Any document a specific statute requires in a set form. <!-- [VERIFY] the current list of acts excluded from electronic signing or requiring a notarial deed under Polish law before relying on it --> ## Making an electronic signature stand up in Poland Even a valid simple signature should be easy to prove. Good practice includes: - Recording the signer's identity, their intent to sign, and consent to sign electronically.
• Keeping an audit trail of who signed, when, from where, and which version.
• Using a qualified timestamp, and a qualified certificate for higher value deals or where the form demands it.
• Storing the final signed file so any later change would be detectable. Stronger identity and integrity evidence makes a signature harder to challenge. ## Keeping signed contracts in one place An electronic signature is only the last step. Before it, a contract in Poland has to be drafted, reviewed for risk, checked against local form and signing rules, and then tracked through its life so renewal dates and obligations are not missed. When that work sits in email, Word files and spreadsheets, the signed PDF often becomes the only record anyone can find later. Drafting a contract, reviewing its clauses, sending it for e-signature and e-stamping, then tracking and governing it through renewal can live in one AI workspace tuned to how your company works. Adira is built around that single workspace, running on Claude, with per-seat pricing shown up front and a 7-day free trial, India-first and built to work across jurisdictions. A single legal health view, the Command Centre, is on its roadmap. You can read more at adiralaw.com. For one signature the law above is what matters. The point worth keeping is that signed contracts are easier to govern when the document, its signing evidence and its key dates stay together.