A B2B contract with a doctor can be a valid arrangement, but its name does not determine social-insurance treatment. Poland’s Social Insurance Institution, ZUS, may examine the insurance category, contribution base and identity of the contribution payer. Therefore, the assessment must consider the actual work, relationships between the parties and records, rather than the invoice alone.
Many misunderstandings come from combining separate issues. Work performed under employment conditions differs from an additional contract benefiting the doctor’s own employer. Concurrent insurance categories and eligibility for business contribution relief require further, separate checks. This guide explains how to distinguish them.
Law stated as at 28 September 2026. Assessing a particular contract requires establishing how it is performed and all the doctor’s concurrent professional relationships.
What does a B2B contract with a doctor actually mean?
B2B describes cooperation between businesses. It is not a distinct contract type that automatically excludes employment or insurance law. A doctor may operate a business and issue invoices, but the nature of each contractual obligation still needs examination.
Check business and professional-practice registrations, the medical licence known as PWZ, indemnity insurance and the permitted scope of services. These establish different conditions for cooperation. However, they do not collectively certify that the ZUS treatment is correct.
The title “agreement for the provision of healthcare services” also does not settle the analysis. The legal basis for concluding the agreement, its terms and its performance matter. In particular, an ordinary service contract should not be equated automatically with every special statutory procedure for commissioning healthcare.
When does a B2B contract with a doctor resemble employment?
Article 22 of the Labour Code describes paid work for an employer, under its direction, at the place and time it determines. If the arrangement meets those conditions, the contract’s name does not change the assessment. A civil-law agreement cannot replace an employment contract while retaining the conditions characteristic of employment.
Healthcare requires careful analysis. Following clinical protocols, safety rules and the provider’s opening hours does not itself establish employment. Conversely, a doctor’s independence in clinical decisions does not rule out organisational subordination.
Identify who assigns shifts, whether the doctor can negotiate availability, how substitution works and who bears the risk of failing to deliver services. Supervision of work and the extent of ongoing instructions also matter. No single factor provides a universal answer.
An independence clause is unconvincing if, in practice, a supervisor approves every absence under employee leave rules. Likewise, a substitution clause requires checking whether it can actually be used. The assessment concerns the real arrangement, rather than a collection of favourable contractual phrases.
Employment and additional services for the same employer
Article 8(2a) of the Social Insurance System Act extends the concept of an employee to specified civil-law contracts. It covers agency agreements, mandate agreements, certain service contracts and contracts for a specific work. The provision applies to a contract with the person’s own employer. It also covers a contract with another entity where the work benefits the person’s own employer.
Consequently, it is unnecessary first to show that every additional contract disguises an employment relationship. The contribution mechanism can follow from the combination of relationships described in this provision. Article 18(1a) then requires the income from that contract to be included in the employee’s contribution base.
If a B2B contract with a doctor exists alongside employment, examine the contract’s legal classification and the actual beneficiary of the work. The flow of services, shift arrangements and settlements between entities are relevant. The doctor’s business registration does not justify leaving that question unanswered.
Hypothetical example. A hospital employs a doctor, while an external company contracts with that doctor for additional shifts at the same hospital. An invoice addressed to the intermediary does not establish a separate insurance category. The parties must examine whether work under the relevant contract benefits the current employer.
A current employer and a former employer are different cases
Article 8(2a) concerns an employer with whom the doctor remains in an employment relationship. Once employment ends, other issues may arise, particularly relief for someone starting a business. One rule should not be applied to every later relationship with the former provider.
Article 18a of the Social Insurance System Act restricts eligibility for a preferential contribution base in specified cases involving a former employer. Activities performed before starting the business, in the current or previous calendar year, are relevant. Separate conditions govern start-up relief under Article 18 of the Entrepreneurs Act.
In its seven-judge resolution of 9 April 2024, III UZP 9/23, the Supreme Court addressed these provisions for a doctor after a postgraduate internship. It confirmed their availability also for services supplied to the employer where the doctor completed that internship under an employment contract. The remaining eligibility conditions still require verification.
In practice, compare the actual activities, the basis of the earlier employment and the dates. Saying that both arrangements involve “medical services” may be too general. Equally, a new job title does not necessarily resolve the issue.
Concurrent insurance categories and health contributions
Employment, business activity and other contracts can create concurrent insurance categories. Their interaction is assessed under the applicable rules, including Article 9 of the Social Insurance System Act. Actual periods, contribution bases and information about interruptions are needed.
A general statement that the doctor “pays ZUS elsewhere” is insufficient. Establish which insurance it concerns and whether it remains current. A change in pay, the end of employment or a break in insurance can change the result.
Health-insurance contributions follow separate rules. Exemption from mandatory social contributions under one category does not automatically mean no health contribution is due. Therefore, any claimed saving should distinguish the different charges and relevant periods.
Evidence of the actual working arrangement
A B2B contract with a doctor should reflect what the parties genuinely agreed and do. Collect the contract, amendments, availability agreements, rotas, invoices and payment confirmations. Where an intermediary is involved, add documents explaining its relationship with the healthcare provider.
| Question | Useful evidence | What to avoid |
|---|---|---|
| Who determines working time? | Actual agreements on shift availability | General statements contradicting practice |
| Is substitution possible? | Rules and examples of lawful substitutions | A clause that can never operate |
| Who benefits from the services? | Agreements between entities and service settlements | Looking only at the invoice recipient |
| Is relief available? | Employment chronology and comparison of activities | Assuming CEIDG registration settles eligibility |
Document the arrangement truthfully. Do not retrospectively invent negotiations or prepare identical witness accounts. If practice needs changing, plan the change prospectively and assess earlier payments separately. A new amendment does not remove historical facts.
Foreign doctors: check the permitted contract first
Before comparing savings, establish whether the particular PWZ permits the proposed arrangement. For a licence limited to a specified scope, period and place, Article 7(2f) of the Medical Professions Act requires a fixed-term employment contract. A B2B contract with a doctor cannot replace that statutory condition.
Citizenship alone does not determine which rules apply. The licence type, its legal basis and restrictions matter. We also explain this in our article on conditional PWZ and PWZ for a specified scope, period and place.
What should you do if ZUS challenges the contract?
First establish the precise issue: the insurance category, contribution base, contribution payer or eligibility for relief. Next, connect it with the relevant evidence and arguments. Defending the whole arrangement merely by referring to “freedom of contract” usually misses the actual issue.
Following an inspection, the general deadline for objections to the report is fourteen days from receipt. A typical contribution decision can instead be appealed through ZUS to the competent ordinary court within one month of delivery. The report, decision and correction duties are separate stages, so they need separate deadlines.
Financial consequences can include unpaid contributions, interest and corrections to records. However, neither a fixed amount nor the doctor’s liability to reimburse it should be assumed. Identify the payer’s duties, the financing of each contribution and any legal basis for claims between the parties.
For older periods, consider limitation and events affecting its running. The general five-year rule does not justify disregarding every older payment without analysis. Specific dates and procedural events matter.
Frequently asked questions about a B2B contract with a doctor
Does having one client automatically mean employment?
No. The number of clients is a factor, rather than a standalone conclusion. Examine the actual organisation of work and the other features of the relationship.
Does the doctor’s declaration release the provider from responsibility?
It does not replace the contribution payer’s duties. It can supply necessary information, but its contents and continuing accuracy need assessment. The parties’ agreement does not bind ZUS on statutory classification.
Is a good contract template enough?
No. The agreement, working arrangements and payments should be consistent. Therefore, a review should also cover the organisation of shifts, substitutions and additional services, rather than just the document’s wording.
Sources and contract review
- Social Insurance System Act — updated text in the Sejm’s ISAP database, particularly Articles 8(2a), 9, 18(1a), 18a, 24, 83 and 91.
- Labour Code — consolidated text published in September 2026, Article 22.
- Entrepreneurs Act, Article 18.
- Supreme Court resolution of 9 April 2024, III UZP 9/23.
- Medical Professions Act, Article 7(2f).
- Code of Civil Procedure, Article 477⁹.
As part of our legal support for doctors and healthcare providers, we review contracts together with the actual working arrangements. To discuss a B2B contract with a doctor, describe the situation through our contact form. Identify the form of cooperation, any concurrent employment and the stage of the matter. Send documents and personal data only through an agreed channel.
Featured photograph (illustrative): Jacek Halicki, 2023 Stetoskop, Wikimedia Commons. CC BY-SA 4.0. Resized and cropped under the same licence.
