To switch EOR providers in Poland, first establish whether the employee's legal employer changes. Then determine whether employment continues under Poland's business-transfer rules or needs a lawful end to the existing contract and a new employment agreement. Confirm the incoming arrangement, work permission, benefits and payroll funding before any irreversible employee exit.
Poland makes this more than a systems migration. Temporary-agency assignment history can survive a provider change, temporary workers have specific leave rules, and employer-linked immigration permission can determine the earliest lawful start date.
Rules checked October 30, 2026.
What changes when you switch EOR in Poland?
Compare the legal names and identifiers on the current employment agreement, proposed agreement, payslips and employer registrations. A platform brand or invoice issuer may differ from the employing company. A registry lookup helps establish identity; the underlying transaction determines the transfer mechanism.
| Situation | Legal mechanism to verify | Evidence required | Implication |
|---|---|---|---|
| Same legal employer, different platform or intermediary | Continuing employment; any changes to terms assessed separately | Employer identity, service changes and employment amendments | Plan an administrative handover without inventing an employee termination |
| Different employer and a qualifying undertaking or part transfers | Labour Code Article 23¹ | Transaction facts, transferred activities/resources and affected employees | Existing employment continues by law; ordinary resignation and rehire are inappropriate |
| Different employer without a qualifying statutory transfer | Lawful termination or expiry, followed by new employment | Reasoned mechanism assessment, exit documents, worker agreement where required and incoming contract | Settle outgoing liabilities and specify incoming rights; continuity is not universally automatic |
The labour ministry explains that a qualifying transfer preserves existing employment and cannot be contracted away. Keeping the same client, job and salary does not by itself establish that the statutory trigger exists. Examine what business activity, organization and resources actually move between employers.
Also establish the Polish employment structure. Where an agency employs someone to work under the client's direction, temporary-work rules may apply. Their permitted purposes include seasonal, periodic or ad hoc work, work the client's staff cannot complete on time, and covering an absent employee. Under the temporary-work act, the usual limit is 18 months for the same user employer within 36 consecutive months, including relevant time through other agencies. Continuous replacement of an absent employee has a separate, conditional 36-month route.
A switch cannot cure an ineligible permanent assignment or restart that clock. If the intended work no longer fits, resolve the employment structure before changing providers. Our Poland EOR guide covers that broader route decision.
Review the existing service and employee position
Commercial agreement
- Identify EOR A's contracting entity and the actual employer, plus EOR B's proposed employer and any local partner.
- Check notice delivery, renewal, earliest exit, minimum fees, transition charges, data assistance and access after termination.
- Reconcile payroll cutoffs, funding, deposits, refund conditions, benefits cancellation and responsibility for later corrections.
- Allocate surviving liabilities, disputes, indemnities and records retention. Name the client manager who coordinates both providers.
Employee arrangements
- Collect the employment agreement, amendments, actual service history, assignment history and applicable collective terms.
- Reconcile unused leave, overtime, expenses, bonus entitlements, equity documents, private benefits and PPK retirement-plan status.
- Identify protected leave, pregnancy-related protection, sickness, disputes, garnishments and immigration dependencies through authorized HR channels.
- Record the last workday, contract end if applicable, pay dates and required notices or worker decisions separately from the commercial exit.
For ordinary fixed-term and indefinite employment, the Labour Code, Articles 30 and 36, generally gives notice of two weeks below six months' service, one month from six months, and three months from three years. Weekly periods end on Saturday; monthly periods end at month-end. Relevant credited service must be checked.
Temporary-agency contracts have special provisions: Article 13 permits agreed early-termination clauses of three days for contracts up to two weeks, or one week for longer contracts. Do not apply ordinary notice periods mechanically to that route. A mutual termination agreement is a different mechanism and requires actual agreement.
Establish transfer and continuity treatment
Where Article 23¹ applies and neither employer has a workplace union, both employers must give their employees the required transfer information at least 30 days in advance. The current Code permits paper or electronic information. Where unions operate, the Trade Unions Act, Article 26¹, requires advance information and, where employment measures are intended, negotiations. The commercial notice period cannot substitute for these duties.
A qualifying transfer does not need each contract employee to sign a fresh employment contract. Employees retain the statutory right to leave within two months after transfer on seven days' advance warning. The transfer itself cannot justify employer dismissal. These transfer protections make a mandatory resignation form the wrong default.
| Item | Statutory treatment to verify | Recognition or settlement needed | Who confirms |
|---|---|---|---|
| Prior service and notice | Qualifying transfer preserves the relationship; ordinary employer-specific notice recognizes predecessor service in the statutory cases | For fresh employment, specify any additional contractual recognition and its purpose | Both employers' HR/legal owners |
| Probation | A statutory transfer continues existing employment | For fresh employment, agree whether probation is omitted; do not present a new trial period as compulsory | EOR B and employee |
| Ordinary annual leave | Transfer continues employment; genuine termination generally triggers unused-leave compensation | Reconcile statutory entitlement, leave already used and any separate contractual days | Both payroll teams |
| Temporary-worker leave | Article 17 gives two days per qualifying month, with specific compensation rules | A different agency must not simply copy an unpaid balance under the same-agency continuation exception | EOR A settles; EOR B validates |
| Protected leave and claims | Identify restrictions and continuing statutory rights before choosing an exit route | Document treatment of open cases and responsible payer; avoid blanket waivers | Both employers and employee |
| Severance or other termination liabilities | Applicability depends on the exit mechanism, reason, employer and worker facts | Determine any entitlement before pricing the switch; a vendor change is not a universal severance trigger | EOR A's legal/payroll owners |
| Bonus, equity and benefits | Employment obligations, plan rules and third-party coverage need separate review | Confirm earned amounts, vesting, replacement benefits and exact coverage dates | Employers, client and plan administrator |
| Work permission | Employer, user employer, permit category and transaction can change the requirement | Obtain the necessary authorization or document a specific exception before work moves | EOR B's immigration owner and employee |
Fresh employment does not erase all earlier work history. Since May 1, 2026, qualifying documented non-employment periods count toward private-sector employment seniority under the new seniority rules. Keep general qualifying history separate from service with a particular employer and from the temporary-work assignment clock.
For employer-linked temporary residence and work permission, Article 120 of the Foreigners Act allows an amendment for a different employer or user employer. Article 119 contains exceptions, including a genuine undertaking transfer, with notification duties. Establish the category and legal effect rather than treating every change as a new permit or every transfer as unrestricted work authorization.
Set one coordinated cutover calendar
Consider a hypothetical Polish citizen employed full-time by temporary agency EOR A for an eligible periodic workload at the same client. Assume a documented assessment finds no undertaking transfer between A and B. The chosen mechanism is mutual termination with A and a new temporary-employment contract with B. Both agencies have the required registration; the task and remaining assignment time are verified. These are scenario conditions, not conclusions about an actual arrangement.
The illustrative effective date is Tuesday, December 1, 2026. Assume A's commercial agreement accepts at least 30 calendar days' notice, delivered Friday, October 30, for termination on Monday, November 30. Assume A's input cutoff is November 20 and B's is November 24, with a controlled process for later adjustments. These are contractual assumptions, not Polish statutory deadlines.
| Milestone | Dependency | Outgoing EOR | Incoming EOR | Client or employee action | Completion evidence |
|---|---|---|---|---|---|
| October 30: commercial notice | Verified service terms and deferral option | Acknowledge receipt and surviving duties | Start preparation | Client gives service notice only | Accepted commercial timetable |
| November 20: draft balances | Mechanism, role and assignment history checked | Supply payroll, leave and employment evidence securely | Validate inputs and first calculation | Client approves attendance; employee checks terms | Reconciled draft ledger |
| November 24: incoming cutoff | Mechanism and proposed terms verified; final exit still conditional | Maintain adjustment contact | Validate accepted inputs and funding instructions | Client sends agreed first-payroll reserve | Accepted calculation and remittance evidence |
| November 26: readiness gate | Legal employer/route, agreed terms, permissions, fitness/safety checks, benefits and payroll readiness confirmed | Confirm agreed exit and November 30 leave settlement | Confirm reserve received, payroll owner and any later top-up process | Client verifies funds; employee has reviewed proposed documents | Written readiness record; unresolved items mean defer |
| November 27: execute employee exit agreement | Readiness confirmed and employee freely agrees | Sign mutual termination effective November 30 | Sign new contract starting December 1 | Employee signs after review | Executed documents, without an assumed resignation |
| November 30: close A's employment period | Documents remain effective; final balances checked | Close work period and old benefits; pay agreed leave settlement; arrange certificate | Preserve validated history | Client confirms final attendance | Settlement receipt, final ledger and certificate timetable |
| December 1: B starts; December 2: filing target | No unresolved authorization or readiness failure | File deregistration effective December 1 | Start benefits and employment; file registration effective December 1 | Employee receives access and contacts | Accepted ZUS submissions and benefit confirmation |
| December 10 and January 8 | Reconciled pay runs and funding | Pay November wages on December 10 | Pay December wages on January 8, 2027 | Employee checks payslips; client closes exceptions | Payment, filing and settlement receipts |
ZUS generally requires registration and deregistration within seven days of the relevant insurance event. The example uses December 1 as the first day outside A's employment and inside B's, with December 2 as an early operational filing target. Calculate each statutory deadline from its own trigger. Both teams own their submissions; the client checks acknowledgments.
B and the client must also confirm required occupational fitness and safety training before work starts. Apply the Labour Code's specific medical-check exceptions only where the documents and working conditions support them; prior employment alone is insufficient.
Assume both wage schedules specify the tenth of the following month. A pays the November 1 to November 30 period on Thursday, December 10. B pays December 1 to December 31 on Friday, January 8, 2027: January 10 is Sunday and January 9 is also nonworking under the assumed Monday-to-Friday schedule. Article 85 requires payment on the preceding working day when the fixed payday is nonworking.
The 2026 holiday calendar includes November 11 and December 24 to December 26. Schedule document handling and December payroll preparation around those closures and the providers' actual banking calendars. The example's dates do not establish a standard migration duration.
If a qualifying Article 23¹ transfer is found instead, replace the employee-exit rows with statutory continuity and the applicable advance-information process. Rebuild payroll, leave and record treatment for that mechanism.
Reconcile transition costs and cash
Maintain a settlement ledger for A and a funding ledger for B. A promised refund is not cleared cash available to fund B.
| Fee, liability or funding item | When due | Responsible party | Refund or settlement treatment |
|---|---|---|---|
| Service notice, minimum term or exit fee | Actual commercial terms | Client and A | Dispute or settle under the service agreement |
| Final wages, expenses and earned variable pay | Applicable payroll or entitlement date | A; client supplies inputs/funding as agreed | Identify each period and pay once |
| Notice, severance or agreed settlement | If triggered by the chosen exit | A, with client cost allocation separately agreed | Do not assume all apply |
| Unused leave compensation | Applicable rule and payment date | A for this fresh-employment example | Keep apart from B's new leave accrual |
| Overlapping services or private benefits | Agreed overlap | Client and relevant provider | Identify intentional overlap and termination date |
| A's deposit or credit balance | Contractual release conditions | A reconciles; client tracks | Refund or documented offset after reconciliation |
| B's first payroll and any deposit | Agreed funding cutoff | Client funds; B runs payroll | Fund gross wages, actual employer costs and agreed charges separately |
Worked balance: four days settled once
Assume A verifies 12 qualifying months, no carried balance and 20 days already used. Under the temporary-worker leave rules, 12 × 2 = 24 days; 24 − 20 = 4 unused days. For this full-time worker, the compensation calculation represents 4 × 8 = 32 hours. A calculates the cash equivalent using Article 17's statutory earnings-and-hours formula; this is not four days multiplied by an invented universal daily rate.
A pays the resulting compensation for this fresh-employment exit. B does not import those four days as an unpaid statutory liability. Any extra paid days B agrees to grant are identified separately. Article 17's exception for using leave under an immediately following contract with the same agency and same user employer does not cover this change from A to B.
A agrees to pay this compensation on November 30 in the example. Confirm the applicable due date before exit: the 2026 amendment changed ordinary Labour Code leave-compensation timing, while temporary workers have a special entitlement and calculation regime. Do not reuse old guidance uncritically. Keep the settlement visible until paid; historical earnings are not December earnings or new funding.
Test the first payroll and close the old arrangement
Use a calculation-only parallel test. Release one authorized wage payment for each period, employer and entitlement. A test file must never enter the live bank batch.
Mark each control pass or fail:
- Period: A's final work period ends November 30; B's begins December 1. Later payment dates remain attached to the correct earning period.
- History: Identifiers, insured status, year-to-date contribution bases, sickness/absence information and assignment history match verified records. Historical values are separate from new earnings.
- Tax and contributions: Each payer validates withholding, reporting, relevant cumulative limits and employee declarations. Do not copy tax elections or payroll balances blindly between different employers.
- Benefits: Private cover ends November 30 and begins December 1 under confirmed plan terms. Check PPK administration and eligible family registrations separately.
- Balances: The four unused days are in A's settlement; overtime, expenses, bonuses and any disputed amounts have named owners.
- Payments and filings: Bank instructions, ZUS acknowledgments and later monthly returns have owners. Commercial closure does not delete a filing duty.
- Records and cash: Export receipt, retained records, invoice totals, deposit offsets and actual refunds reconcile; access survives for necessary corrections.
The tax authority's PIT-11 guidance gives the normal annual deadlines: end of January for the tax office and end of February for the employee, moving to the next working day when applicable. Employer cessation has separate rules. Assign A's reporting and correction contact before closing the account.
Give the employee a usable handoff
Before the November 27 signing date, explain the legal-employer change, new contract, agreed service recognition, four-day settlement, wage dates and benefit coverage in writing. Distinguish agreed improvements from statutory rights. November 27 is the scenario's proposed signing date, not a universal consent deadline; give genuine review time and move it if agreement is not reached. Supply copies promptly and identify A's settlement contact, B's HR/payroll contact and the client's coordinator.
For a statutory transfer, explain the applicable advance notice and post-transfer exit right instead. For fresh temporary employment, obtain the appropriate employment certificate and supporting assignment history; Articles 18a and 18b have specific certificate rules, including an employee request route.
If outgoing records arrive late
The client's coordinator owns escalation; B's payroll and HR owners decide sufficiency. At minimum verify employer identity, employment/permission basis, agreed pay and dates, assignment periods, leave and absence balances, relevant cumulative payroll values and benefit arrangements.
Use controlled, access-limited exchange with a documented lawful basis. The Polish data authority's employment-data decision emphasizes limiting data to the purpose and applying appropriate safeguards. A complete personnel-file transfer and a fresh employer's necessary onboarding data are different exercises.
Reconstruction from lawful employee-held documents and validated records can support a handover only when sufficient and reconciled. If decisive history or payroll inputs remain unverified, defer before the employee's irreversible exit. Extend A only where its contract, assignment limit and permission allow; otherwise stop affected work until a lawful arrangement is ready.
Two employee situations that change the switch
1. Polish citizen with an eligible temporary assignment
This is the worked December 1 case. Assume 12 months at this user employer through November 30 and no other relevant assignments in the rolling window. December adds another month to the same history. B receives the full assignment record; it cannot offer a new 18-month clock.
The conditional outcome is a December 1 start after the readiness gate and freely agreed documents, private benefits on adjoining dates, A's four-day leave compensation tracked separately, and distinct final/first wage payments. Citizenship removes this case's employer-linked immigration dependency; it does not settle employment classification or every right.
2. Employee whose residence and work permit names EOR A
Assume a non-EU worker has an ordinary temporary residence and work permit naming A, with no independent exemption and no qualifying undertaking transfer. B and the employee must establish the amendment or other lawful permission route before moving work. A filing receipt alone is insufficient evidence that work for B is authorized.
Check B's legal capacity too. The foreign-worker law, Article 13(1)(7), provides a refusal ground where the proposed employer is not a lawful temporary-work agency and work would be for a third party. The agency legislation, Articles 305 and 445, adds specific requirements for agencies serving foreigners needing permits or declarations, including a two-year rule and a transitional exception. Inspect the actual registry scope and applicable exception.
For the ordinary combined permit, the employee's loss-of-job notification generally runs for 15 working days; the named employer has a separate 15-day duty. Article 121 also recognizes a specified timely amendment application as satisfying the employee's notification. Separate work permits and other categories have different rules. Do not apply this example wholesale to Blue Cards or other statuses.
If authorization for B is unresolved, replace the December 1 date with a conditional date. Retain A only while lawful and agreed. Neither a commercial deadline nor residence remaining lawful alone permits work for B.
Questions about switching EOR in Poland
Must employees resign to switch providers?
No. Establish the mechanism first. A qualifying Article 23¹ transfer continues employment by law. Fresh employment requires a lawful exit, which may be mutually agreed; a platform-only change may require no employer change at all.
Can the incoming EOR recognize the original start date?
It can agree additional contractual recognition where lawful, with each entitlement specified. Statutory continuity, general qualifying seniority and temporary-assignment history have their own rules. A date copied into software does not establish all three.
Can unused leave simply move to the new provider?
The mechanism and worker category decide. In the worked fresh temporary-agency case, A settles its four unused days. Statutory transfer and continuing employment require different treatment; copying a balance can otherwise leave an unpaid liability or duplicate it.
Does a new agency reset the assignment limit?
No, the usual temporary-work limit also constrains the same user employer's use of the worker. Check the rolling history, task eligibility and any specific replacement exception before setting B's assignment length.
How long does an EOR switch take in Poland?
There is no single timetable. The mechanism, commercial terms, employee agreement, transfer information, work permission, records and payroll readiness determine the date. The dated example applies only when its stated conditions are met.
Borderless AI provides EOR services and supports provider transitions. Bring the current arrangement, proposed employer, assignment history and permission category to a discussion with our team. Ask us to assess the proposed Poland switch and confirm case eligibility, responsibilities and timing before committing to an employee exit.
