PfP SOFA: Ukraine Moves to Close Legal Implementation Gaps. Defence Contractors Are Not Automatically Covered

Complex law. Clear action.

Reviewed by Oleksandr Sobovyi, Founder & CEO of CORVUS AI — editorial responsibility statement below.

On 27 October 2026, Ukraine's Ministry of Defence reported a working meeting on the implementation of the NATO Status of Forces Agreement (NATO SOFA). No new legislation was adopted. The discussions concerned a draft Implementation Plan, four areas requiring legislative attention, and further interagency consultations. Ukraine has participated in the Partnership for Peace SOFA framework since 2000. What has changed is the strategic context: the Ministry now explicitly links implementation to potential security guarantees for Ukraine. This brings questions of criminal jurisdiction, claims, customs and taxation into sharper focus as governments consider possible longer-term foreign military deployments. For private defence contractors, a separate legal question arises: their personnel do not automatically qualify for SOFA status.

What Happened

According to the Ukrainian Ministry of Defence, representatives of 18 state institutions participated in the meeting, including ministries, law enforcement authorities, the General Staff and the National Bank of Ukraine. Attendance was reportedly twice the number initially expected.

The Ukrainian Helsinki Human Rights Union participated as a partner and co-developed the draft Implementation Plan with the Ministry of Defence. The plan identifies measures intended to address implementation gaps and assigns responsibility for their execution.

The meeting was supported by the United Kingdom's Special Defence Adviser programme.

The Ministry described the meeting as another stage of ongoing work. Participants agreed to conduct additional consultations.

The draft Implementation Plan has not been published. Accordingly, the specific legislative amendments, institutional responsibilities and implementation timetable cannot yet be independently assessed.

The Legal Framework

For Ukraine, the relevant framework is the NATO Status of Forces Agreement of 1951, applied through the Partnership for Peace Status of Forces Agreement (PfP SOFA) and the applicable supplementary instruments.

Ukraine ratified the PfP SOFA and its Additional Protocol under Law No. 1510-III of 2 March 2000. The legal status and applicability of the Further Additional Protocol must be assessed separately rather than attributed to that ratification law.

An essential distinction must be maintained: SOFA regulates the legal status of foreign forces; it does not, by itself, authorise their deployment or stationing in Ukraine.

The legal basis for the entry and presence of foreign military units must be established separately, subject to applicable international agreements and Ukrainian constitutional and domestic requirements.

The Ministry also reported an update to the official Ukrainian translation of the agreement on the Verkhovna Rada's legislative portal. For legal interpretation, the authentic treaty text and applicable supplementary instruments remain essential references. An updated translation does not itself amend the underlying international obligations.

Five Key Findings

1. Implementation is not starting from zero

Ukraine has been working with the PfP SOFA framework for more than two decades.

Questions involving customs duties, fuel taxation, criminal jurisdiction and claims were already examined during a 2010 implementation seminar conducted by the US Defense Institute of International Legal Studies (DIILS) in Kyiv.

The central issue is therefore not necessarily a deficiency in the treaty itself, but the effectiveness and completeness of domestic procedures for applying its provisions.

Particular attention is required in four areas:

• Criminal jurisdiction: Article VII, including the exercise of primary jurisdiction, requests for waiver, custody and cooperation between competent authorities.

• Claims: Article VIII, including the handling of third-party claims and allocation of financial responsibility.

• Taxation: Article X and the applicable limits of tax exemptions.

• Customs: Article XI, including the conditions governing the importation of equipment, supplies and other eligible goods.

These provisions already establish international legal rules. The outstanding question is how consistently and predictably Ukrainian institutions can implement them in practice.

2. Criminal jurisdiction is the most sensitive implementation issue

The Office of the Prosecutor General and the Ministry of Justice shared their experience during the discussions. Possible amendments to Ukraine's Criminal Procedure Code were considered separately.

Article VII of NATO SOFA establishes a system of exclusive and concurrent criminal jurisdiction, with primary jurisdiction allocated according to the circumstances of the offence.

It also provides mechanisms for cooperation and consideration of requests to waive the primary right to exercise jurisdiction.

The existence of these treaty rules does not eliminate the need for clear national procedures.

Ukrainian investigators, prosecutors and courts require an operational framework for determining the competent authorities, exchanging notifications, handling custody, considering jurisdictional requests and coordinating proceedings.

The legal risk is not that Article VII has no effect without new legislation. Rather, uncertainty in domestic procedures may lead to inconsistent decisions, delays and disputes between the receiving and sending states.

In a sustained multinational deployment, these issues could arise immediately following an incident involving foreign military personnel.

3. Potential security guarantees change the operational significance

The Ministry expressly connects SOFA implementation with the broader context of possible security guarantees for Ukraine.

Historically, the framework has been particularly relevant to exercises, training and temporary military activities. However, NATO SOFA is not legally limited to exercises or short-term deployments.

If future security arrangements involve a longer-term foreign military presence in Ukraine, implementation gaps would acquire greater operational importance.

Criminal jurisdiction, claims settlement, customs treatment and taxation would become recurring issues affecting military commands, national authorities and potentially private service providers.

CORVUS AI assessment: The strategic significance of the current implementation work lies in preparing the legal infrastructure for possible future arrangements, not in establishing that any particular foreign deployment has already been agreed.

Neither the Ministry's announcement nor the draft Implementation Plan should be interpreted as an independent legal authorisation for the stationing of foreign forces.

4. Private defence contractors fall outside the automatic SOFA framework

This is a particularly important distinction for international defence manufacturers, maintenance providers and technology companies.

Under Article I(1)(b) of NATO SOFA, the civilian component generally consists of civilian personnel accompanying a force who are employed by the armed services of the sending state, subject to the agreement's nationality and ordinary-residence restrictions and the relevant adaptations under PfP SOFA.

Employees of private defence companies do not ordinarily satisfy this definition merely because their employer performs a contract for foreign armed forces.

For example, a foreign manufacturer may deploy engineers or technicians to Ukraine to undertake:

• maintenance and repair of military equipment;

• technical support and training;

• localisation of defence production;

• joint manufacturing;

• installation, testing or integration of defence technologies.

Such activities do not automatically confer civilian-component status under NATO SOFA.

Consequently, companies should not presume that the treaty's criminal-jurisdiction arrangements, personal tax exemptions or customs privileges apply to their personnel, equipment or commercial activities.

Different legal questions must be examined separately.

Personnel status and jurisdiction. Employees may remain subject to the ordinary Ukrainian legal framework unless a specific applicable agreement or other legal provision establishes a different position.

Taxation. The treatment of employment income, corporate activities and potential permanent establishments must be determined under applicable domestic law, tax treaties and any relevant special arrangements.

Customs. Equipment, spare parts and technical materials should not be imported on the assumption that Article XI automatically provides an exemption for private commercial contractors.

Immigration and employment. Entry, residence and work authorisation requirements must also be assessed independently where applicable.

Separate international arrangements may establish special treatment for certain contractors or activities. However, inclusion of contractors within the definitions of an operational support agreement does not necessarily extend the full NATO SOFA regime to them.

The decisive question is the precise legal basis governing the individual, activity, equipment and transaction.

5. Defence-industrial cooperation creates a parallel compliance challenge

The distinction between military personnel and private contractors is increasingly relevant as Ukraine expands defence-industrial cooperation with international partners.

Foreign companies participating in maintenance, production localisation, joint ventures or technology-transfer projects may operate alongside military units without acquiring the same legal status.

This creates several overlapping compliance questions.

A company may need to assess the status of deployed personnel under Ukrainian law, while separately addressing export controls, technology transfers, customs procedures, taxation, security requirements and contractual liability.

The existence of a military cooperation agreement does not necessarily resolve these commercial and regulatory obligations.

CORVUS AI assessment: As international defence-industrial cooperation expands, uncertainty over contractor status may become a practical obstacle to project execution even where the military status framework itself is well established.

The issue should therefore be addressed at the contractual and regulatory planning stage, rather than after personnel or equipment have entered Ukraine.

What Companies Should Do Now

1. Establish the legal basis for each personnel category.

Distinguish members of foreign armed forces, qualifying civilian-component personnel, private contractors, subcontractors and locally recruited employees. Do not assume that a defence contract determines SOFA eligibility.

2. Prepare incident-response procedures.

Contracts and operational protocols should identify the relevant points of contact, notification procedures, responsibilities for legal assistance and arrangements for cooperation with Ukrainian authorities. Private contracts cannot independently alter criminal jurisdiction established by law or treaty.

3. Verify customs treatment before shipment.

Classify equipment, components and spare parts under the applicable customs and export-control rules. Confirm any claimed exemption against the actual legal status of the importer, end user and transaction.

4. Assess tax exposure before deploying personnel.

Review employment taxation, corporate presence, permanent-establishment risks and the allocation of compliance responsibilities between the foreign company and its Ukrainian partners.

5. Monitor legislative implementation.

Track publication of the Implementation Plan, proposed amendments to the Criminal Procedure Code and any related changes concerning claims, taxation and customs procedures.

Limits of This Analysis

The Ministry's announcement was published on 27 October 2026; the date of the underlying meeting was not specified.

The draft Implementation Plan is not publicly available. This analysis therefore addresses the announced areas of work rather than the wording of proposed amendments.

The precise date of the reported update to the official Ukrainian translation has not been independently confirmed.

Specific international arrangements may provide additional rules for contractors. Their scope must be assessed individually, and operational-support terminology should not be treated as equivalent to full NATO SOFA status.

The analysis does not establish that any foreign military deployment under future security guarantees has been authorised or agreed.

Conclusion

Ukraine's latest work on PfP SOFA implementation is not the creation of a new status-of-forces regime. It is an effort to make an existing international legal framework more operationally effective.

The potential connection with future security guarantees increases the importance of that work, particularly in criminal jurisdiction, claims, taxation and customs administration.

For defence companies, the immediate lesson is different but equally consequential: participation in military or defence-industrial cooperation does not automatically bring private personnel within the protection or privileges of NATO SOFA.

Legal status must be established before deployment, and contractual arrangements must reflect the applicable legal framework.

Former Director of the Legal Department, Ministry of Defence of Ukraine; former Director of the National Security Department, Ministry of Justice of Ukraine.

Disclaimer

This article has been prepared by CORVUS AI for general informational and educational purposes only. It is intended to make complex legal and regulatory developments easier to understand.

It does not constitute legal advice and does not create a professional adviser–client relationship. The information should not be relied upon as a substitute for advice based on the specific facts, circumstances and applicable law relevant to your organisation or project.

The article reflects our understanding of the law and regulatory framework as of the date of publication. Legislation, case law, regulatory guidance and administrative practice may subsequently change. While reasonable care has been taken in preparing this article, CORVUS AI does not warrant that the information is complete or remains current after the date of publication. We do not undertake to update this content.

To the fullest extent permitted by applicable law, CORVUS AI excludes liability for loss arising from reliance on this article. Nothing in this article constitutes an offer or solicitation to provide regulated legal services in any jurisdiction where doing so would be unlawful.

AI-assisted preparation: This article was prepared with the assistance of AI tools. Its legal analysis, conclusions and final text were subject to human review and editorial control and were reviewed and approved prior to publication by Oleksandr Sobovyi, Founder & CEO of CORVUS AI. CORVUS AI retains editorial responsibility for the published content.

For advice tailored to your organisation, project or specific circumstances, please contact CORVUS AI.

CORVUS AI | Netherlands
contact@corvusai.eu

This publication reflects CORVUS AI's analysis as of 28 October 2026 and does not constitute legal advice concerning any specific situation.

AI transparency and editorial responsibility: Artificial intelligence tools were used in preparing this publication. The material was subject to human editorial and legal review. CORVUS AI assumes editorial responsibility for the publication. Responsible reviewer: Oleksander Sobovyi. This disclosure is provided with reference to Article 50(4) of Regulation (EU) 2024/1689 (EU AI Act).