Work Permits, Employer Sponsorship and Cross-Border Mobility: The Legal Status Behind International Growth

International growth often begins with a person. A founder wants to enter a new market. A senior manager is needed on the ground. A foreign investor wants direct control. A group company sends a trusted employee to fix operations. A UK business hires talent internationally. A Turkish subsidiary needs a foreign specialist before the paperwork feels ready.

The business reason may be sound. The mistake is assuming that the legal structure will catch up later. It may not.

A person may own shares in a company and still not have the right to work in that company. A person may be appointed as director and still need separate analysis before managing staff locally. A person may enter as a visitor and still cross the line into work. A sponsored worker may have permission for one role while the business quietly gives them another. A consultant may be described as independent on paper while functioning as part of the employer's workforce.

These are not merely immigration points. They are employment, corporate, tax, payroll, governance and regulatory points. In a serious business, and especially in a group operating across Türkiye and the United Kingdom, they cannot be left to last-minute administration. The question is simple, but often asked too late: can this person lawfully do this work, for this company, in this country, in this role, on these terms?

1. The Shareholder Fallacy

The most common error is ownership confidence. A foreign investor establishes a company, acquires shares or joins a family business and assumes that ownership gives operational freedom. Commercially, that feels natural. Legally, it is not that simple.

Share ownership is one relationship. Management is another. Employment is another. Residence is another. Payroll is another. Signature authority is another. They may overlap. They do not automatically merge.

A passive foreign shareholder may not be working at all. A foreign director may attend board meetings without necessarily running the business day to day. A consultant may genuinely provide external advice. But once the person starts managing staff, negotiating contracts, supervising operations, providing services, generating revenue or acting as part of the local business, the analysis changes. The title is not enough. The activity matters.

That is why foreign investors should treat work authorisation as part of market entry planning, from the moment the company is being formed, not as a formality afterwards. A company may be validly formed and still be unable to lawfully use the person around whom the business plan was built.

2. Türkiye: Company Formation Does Not Answer the Work Question

Türkiye-related mobility risk is often misunderstood by foreign founders and investors. The company can be incorporated. The trade registry process can be completed. Bank accounts can be opened. Shareholding can be recorded. A foreign person can appear in the corporate structure. None of that, by itself, answers whether that person may actively work in Türkiye.

For employers, the practical distinction is important. A person who invests in a Turkish company is not automatically authorised to manage it from within Türkiye. A foreign manager appointed on paper may still require work authorisation depending on what they actually do. A foreign consultant visiting the company may remain a visitor if the activity is limited, but may move into work if the facts change.

The risk is especially visible in founder-led businesses, hospitality, real estate, technology, trading companies, start-ups and foreign-owned subsidiaries. These businesses often need the founder or senior manager physically present before operations are stable. That is exactly why the legal status should be checked early, as part of operating in Türkiye and of the firm's international business and investment planning.

The correct question is not "is he a shareholder?" The correct question is "what will he do tomorrow morning?" If the answer is operational work, the company should not rely on corporate title alone.

3. UK Sponsorship: A Licence Is a Compliance System

In the United Kingdom, employer sponsorship is sometimes treated as an immigration gateway: obtain the sponsor licence, assign the certificate, secure the visa, bring the worker in. That view is too narrow.

A sponsor licence is not merely permission to hire. It is an ongoing compliance position. The employer must know who is sponsored, what role they perform, where they work, what they are paid, whether their duties have changed, whether absences are monitored and whether the business can produce the records expected of a sponsor. The risk begins after approval, not only before it.

A sponsored worker may be promoted. Their duties may expand. Their work location may change. A group restructuring may move them into another entity. Hybrid work may become normal. A manager may ask them to cover another role. HR may change salary without considering the sponsorship record. The business may assume these are ordinary employment changes. Sometimes they are. Sometimes they are immigration events.

The point is not to make sponsorship frightening. It is to make it owned. A sponsor licence should sit inside a controlled HR and legal process. The company should know who is responsible, when legal review is triggered, and how records are maintained. Without that discipline, a licence obtained to support growth can become a compliance exposure.

4. Right-to-Work Checks Are Not Box-Ticking

Right-to-work checks are often filed away as onboarding paperwork. That is a mistake. The check is not just a copy of a document. It is the employer's evidence that it took the required steps before allowing a person to work. If the check is done late, done through the wrong route, retained poorly or applied inconsistently, the employer may have created exposure before the employee has even begun.

In practice, weak right-to-work systems usually fail in ordinary ways. Someone accepts a screenshot. Someone assumes HR checked. Someone starts the worker before the share code is verified. Someone forgets a follow-up check. Someone treats a sponsored worker as automatically cleared for everything. Someone stores evidence in an inbox rather than a compliance file.

These are small mistakes until the Home Office, a buyer in due diligence, an auditor or a dispute lawyer asks for the record. A serious employer should treat right-to-work evidence as part of the legal architecture of employment. The employee's status and the employer's record should match from the first day.

5. The Business Visitor Problem

Business visitors create the most dangerous grey area because the situation often changes quietly. The visit begins legitimately. A person comes for meetings, negotiations, site visits or market discussions. Then the business starts using them. They train staff. They approve operational decisions. They speak to customers. They solve delivery problems. They supervise a project. They become the person everyone calls. The company still calls it a visit. The facts may no longer support that description.

This is not a theoretical issue. International groups frequently send people across borders because the person is trusted, available and commercially necessary. That may be sensible. But the company must distinguish between visiting for permitted business activity and performing work in the host country. The difference is not always obvious to the commercial team. It may depend on duration, payment, local benefit, client-facing activity, control, whether the person fills a local role, and whether their work produces value inside the host market.

The safest companies do not rely on informal labels. They give travelling staff clear instructions before arrival, control what they may do, record the purpose of the visit and escalate the matter if the visit starts becoming operational. A visitor route should never be used as a temporary work permit. That is where many companies become careless.

6. Directors and Authorised Signatories: Corporate Power Is Not Work Status

Foreign directors and authorised signatories require careful handling. A company may appoint a foreign person to the board for legitimate reasons: investor control, group governance, banking authority, family oversight, signing powers or commercial credibility. That appointment may be valid as a corporate matter. But corporate authority and work status are different questions.

A director who attends occasional board meetings is not in the same position as a director who sits in the local office, manages employees, instructs suppliers, negotiates with clients and runs daily operations. An authorised signatory who signs corporate documents is not necessarily the same as an executive carrying out paid management work. A founder who says "this is my company" may still be performing work if they are actively operating the business.

The legal analysis should focus on conduct, not pride of ownership. This is particularly important where a foreign-owned Turkish company or a UK-linked group relies heavily on one individual, which is why senior executive and management appointments deserve specific review. If that person's legal status is fragile, the business itself becomes fragile. A company should not build its management structure around a person whose right to act has not been properly analysed.

7. Secondments: The Agreement Between the Lines

Secondments often look practical. A group employee is sent from one company to another. The home employer remains involved. The host company gives instructions. Salary may stay on home payroll. Costs may be recharged. The employee may remain in the group, but the legal centre of gravity shifts. This is exactly where undocumented arrangements become risky.

A good secondment structure should answer questions that are often left implied. Who remains the employer? Who controls daily work? Who pays salary? Who carries tax and social security obligations? Which entity handles disciplinary matters? Who owns work product? What happens if the host wants to end the assignment early? Which country's employment rights may arise? Does the person need work authorisation in the host country?

A secondment agreement is not a ceremonial document between friendly group companies. It is the bridge between employment law, immigration, payroll, tax, social security, confidentiality, intellectual property ownership and corporate control. Without it, everyone thinks the arrangement is understood until something goes wrong. Then the question becomes: whose employee was this person, really?

8. Remote Work Is Not a Legal Shortcut

Remote work has made cross-border mobility harder, not easier. A person can work from Istanbul for a London employer, from London for a Turkish company, from Northern Cyprus for a group entity elsewhere, or from several places in the same month. The laptop makes the arrangement look borderless. The law usually does not.

The place where work is physically performed may still matter. Local employment law may matter. Immigration status may matter. Payroll may matter. Social security may matter. Data protection may matter. Tax presence may matter. Contractual promises to clients may matter.

The problem is that remote work is often approved informally. A manager says yes because productivity is unaffected. HR is told later. Payroll remains unchanged. The employment contract still names the old work location. The employee starts working from another country for months. No one checks whether the company has created a local employment, tax or immigration issue.

A serious business needs a remote-work approval process for international cases. Not every temporary relocation is a crisis. But no serious company should allow employees to decide unilaterally where the company is legally operating. A laptop can cross a border in seconds. The legal consequences may not.

9. Consultants: The Label That Often Fails

Calling someone a consultant may solve a commercial discomfort. It does not necessarily solve the legal problem. A consultant may still be working in the host country. A consultant may still be integrated into the business. A consultant may still use company email, attend internal meetings, report to managers, supervise employees, deal with customers and perform core functions. If the relationship looks like employment or operational work, the label will not carry the file by itself.

This matters in start-ups, international business development, construction, real estate, technology, hospitality and family-company structures. Companies often use consultants because they want speed, flexibility or lower administrative burden. That may be legitimate. But the arrangement must reflect reality. A well-drafted consultancy agreement helps. It does not cure contradictory conduct. The test is not what the invoice says. The test is what the person actually does.

10. Employment Contracts, Payroll and Status Must Tell One Story

Mobility files fail when documents contradict each other. The permit application says one role. The employment contract says another. Payroll sits in another entity. The person reports to managers in a different country. The job title changes in practice. The person works from a location not reflected in the records. A secondment is described orally but never documented. A director is paid as a consultant. A foreign employee is treated as local for management purposes but offshore for payroll.

These inconsistencies become dangerous in audits, disputes, M&A due diligence, sponsor reviews, termination, tax review or litigation. A clean file should have alignment. The role, employer, salary, work location, reporting line, start date, permit status, payroll treatment and corporate authority should make sense together. Where the structure is complex, it should be documented clearly rather than hidden in assumptions.

International employment can be sophisticated. It should not be vague. The more complex the arrangement, the more important the paper trail becomes.

11. M&A Due Diligence: The Hidden People Risk

Work-authorisation issues often surface during acquisitions. A buyer reviews a target and discovers that key foreign managers do not have clean status, sponsored workers have changed roles without clear records, right-to-work checks are incomplete, expatriates are paid offshore while working locally, consultants are embedded in the business, or foreign directors have been operational without proper analysis.

By that stage, the issue becomes price, warranty, indemnity, closing condition or integration risk. The buyer may ask whether the company can lawfully keep using its key people after completion. The seller may insist the issue is administrative. The lawyers know it may affect business continuity.

Employment due diligence should therefore look beyond contracts and headcount. It should test whether the company can lawfully use the people it depends on. Human capital is only an asset if the company can deploy it legally.

12. Termination: The File Does Not End When Employment Ends

Ending employment can create mobility obligations. If a sponsored worker resigns, is dismissed or changes role, reporting duties may arise. If a foreign employee's right to stay depends on employment, the termination may have immigration consequences. If a secondment ends, the home and host entities must deal with payroll, social security, equipment, confidential information, handover and repatriation. If a consultant relationship ends, the company should ensure system access, data, intellectual property and client communication are controlled.

Termination letters are often drafted as employment documents only. In cross-border cases, that is not enough. The company should check status, reporting, immigration timing, settlement wording, final payroll, restrictive covenants, return of documents, confidentiality, data access and future re-entry risk before the exit is completed. A clean termination can still create a legal problem if mobility status is ignored.

13. What a Serious Employer Mobility File Should Contain

A proper mobility file is not excessive bureaucracy. It is proof that the company knew who was working, where, for whom and on what basis. For a foreign worker, director, secondee, sponsored worker or cross-border consultant, the file should be capable of showing the legal structure of the relationship.

That usually means identity documents, right-to-work or permit evidence, role description, employment or consultancy agreement, payroll record, work location, start date, corporate approvals, secondment agreement if applicable, sponsor records where relevant, renewal diary, changes to role or salary, absence records, termination documents and correspondence with advisers or authorities.

The file should not live in five inboxes. It should be coherent. When a company cannot produce the record, even a defensible arrangement starts to look careless.

14. The Real Risk: No One Owns Mobility

In many companies, mobility risk falls between departments. HR handles onboarding. Legal reviews contracts. Immigration counsel handles applications. Payroll pays salary. Tax advisers look at residence. Managers direct the work. The board approves appointments. The employee travels. Everyone touches the issue. No one owns it. That is where mistakes happen.

A serious cross-border mobility process needs one internal owner or one coordinated external adviser who can see the whole file. That person does not need to know every immigration rule in every jurisdiction. But they must know when to stop the business from acting before the legal position is checked. This kind of cross-border coordination is what keeps a multi-jurisdiction arrangement from drifting.

The trigger points are predictable: hiring, relocation, remote work from another country, appointment as director, start of operational work, change of role, change of salary, secondment, termination, acquisition and restructuring. Mobility compliance is not about slowing business. It is about preventing the company from discovering, under pressure, that the person doing the work was never properly authorised to do it.

15. How Terziolu & Partners Can Assist

Terziolu & Partners advises employers, founders, foreign investors, family businesses, international groups and private clients on employment, corporate, regulatory and cross-border mobility matters involving Türkiye, London, Northern Cyprus and wider international structures.

Our work may include:

• foreign employee and director status review;
• Türkiye work-permit and exemption strategy;
• employer mobility risk assessment;
• foreign shareholder and manager activity review;
• employment contract and role alignment;
• secondment and group mobility documentation;
• remote-work and cross-border employment review;
• consultant and contractor structure review;
• HR compliance file structuring;
• right-to-work and sponsor-compliance coordination where UK law is engaged;
• M&A employment and mobility due diligence;
• termination and mobility-exit planning;
• coordination with qualified immigration counsel where required.

The purpose is not to turn every hire into a legal project. The purpose is to make sure that the people carrying the business are legally able to carry it. International growth needs talent. It also needs status. If you are planning a move, speak to us before the person starts, not after.

Selected public and institutional references

• Republic of Türkiye Ministry of Labour and Social Security, Directorate General of International Labour Force, work permit materials.
• Republic of Türkiye Ministry of Labour and Social Security, work permit types under International Labour Force Law No. 6735.
• Republic of Türkiye Ministry of Labour and Social Security, work permit exemption materials.
• Turkish International Labour Force Law No. 6735.
• GOV.UK, Workers and Temporary Workers sponsor guidance: sponsor duties and compliance.
• GOV.UK, employer's guide to right to work checks.
• GOV.UK, Immigration Rules Appendix Visitor and permitted activities.
• Terziolu & Partners, employment practice materials.

This publication is for general information only and does not constitute legal advice. Work permits, immigration status, employer sponsorship, right-to-work checks, employment contracts, payroll, tax, social security and cross-border mobility matters are fact-sensitive and may change frequently. Specific advice should be obtained before taking or refraining from any action. Where Turkish, English, Northern Cyprus or another jurisdiction's law is engaged, advice from appropriately qualified counsel should be obtained.