How to legally start a side business while employed in Serbia
A regular job does not automatically prevent you from earning income independently in Serbia. Employees may provide services, sell products, or develop a small commercial activity alongside their employment, provided they choose an appropriate legal form and comply with tax, labor, consumer-protection, and registration rules.
The safest approach is to treat the idea as a real business from the beginning. That means checking your employment contract, selecting a structure, registering with the competent authorities, issuing proper invoices, and keeping private and business finances separate. Informal work may seem convenient at first, but it can create tax debt, labor disputes, and problems with clients.
The process is manageable when divided into practical steps. The central decision is usually whether to register as an entrepreneur, commonly called a preduzetnik, or to establish a limited liability company. The right choice depends on expected income, business risk, administrative capacity, and whether you will work alone or with partners.
Check your employment contract first
Before registering anything, read your employment agreement, internal workplace rules, and any confidentiality or intellectual-property policies. Serbian labor arrangements may include a non-compete clause that restricts certain activities after or during employment. Such a restriction should be clearly defined and connected to the employer’s legitimate business interests.
A side activity may also create a conflict of interest if you intend to serve the same clients, use your employer’s equipment, rely on confidential information, or compete directly with the company. Working in a different field does not eliminate every risk: misuse of customer lists, software, documents, or working time can still lead to disciplinary consequences.
Where the contract requires prior approval, obtain that approval in writing before accepting clients. Even when permission is not expressly required, written disclosure may prevent future misunderstandings. Keep the side business separate from your employment by using your own devices, accounts, records, and working hours.
Choose a legal form that matches the activity
For many people testing a freelance service or small trade, registering as an entrepreneur through the Serbian Business Registers Agency, or APR, is the simplest route. An entrepreneur can operate under a business name, sign contracts, issue invoices, and open a business bank account. Registration normally includes selecting a predominant activity code and an official business address.
Entrepreneurs generally bear personal responsibility for business obligations, which is important when the activity involves inventory, vehicles, customer claims, rented premises, or professional liability. Registration as an entrepreneur is therefore not merely a formality; it affects personal financial exposure.
A limited liability company may be more suitable where there are several founders, employees, substantial contracts, external investment, or higher operational risk. It requires more administration and ongoing accounting, but the company is a separate legal person. The choice should be based on actual risks rather than the assumption that an LLC is always more professional.
Understand taxes, contributions, and invoicing
Once registered, the business must meet its tax obligations even if revenue is irregular. Depending on the activity and eligibility conditions, an entrepreneur may use lump-sum taxation, known as paušalno oporezivanje, or keep business books and calculate taxable profit. Not every activity qualifies for the lump-sum regime, and turnover limits and other conditions apply.
An employed person should not assume that employment automatically removes all business-related contributions. The treatment of pension, health, and other mandatory contributions depends on the legal form, insurance status, tax regime, and the nature of the activity. A licensed accountant can check the current calculation and filing duties with the Tax Administration.
Value-added tax is a separate issue. A business may need to register for VAT after reaching the statutory turnover threshold or may enter voluntarily in certain circumstances. If you invoice foreign clients, receive payments through digital platforms, or sell through an online store, additional rules may apply. Maintain contracts, invoices, bank statements, and expense records from the first transaction.
| Issue | Entrepreneur | Limited liability company |
|---|---|---|
| Registration | Usually simpler and faster through APR | More formal incorporation process |
| Responsibility | Generally tied closely to the entrepreneur’s personal assets | Company is a separate legal person, subject to statutory exceptions |
| Administration | Can be simpler, especially under eligible lump-sum taxation | Accounting and corporate records are usually more demanding |
| Suitable for | Solo services, freelancing, small trade, testing a business model | Partners, employees, investment, larger contracts, higher risk |
| Tax treatment | Depends on regime, activity, and turnover | Company tax and possible personal tax apply when money is distributed |
| Employment status | Can exist alongside an employment relationship | Can be owned or managed while the founder remains employed |
Register the activity and build compliant records
APR registration gives the business a formal identity, but it is only the beginning. Confirm the activity code, business address, bank-account arrangements, accounting method, and obligations connected with the premises or equipment. Some fields require special licenses, professional qualifications, sanitary approvals, technical conditions, or sector-specific permits.
Retail, food production, transport, construction, education, health-related services, tourism, and activities involving children may carry additional requirements. Online work is not automatically exempt from regulation. A person selling products through social networks may still need to comply with consumer rights, returns, product safety, and fiscalization rules.
Keep a clear record of each sale and expense. Use written service agreements that describe the scope of work, deadlines, payment terms, intellectual-property rights, confidentiality, and liability. If you work with individuals, explain prices and terms transparently. If you process names, contact details, payment data, or other personal information, review obligations under Serbia’s personal data protection framework.
Protect the boundary between job and business
The employment relationship and the side business should be treated as separate legal and financial systems. Do not perform private work during paid working hours unless the employer has expressly authorized it. Avoid using workplace software, premises, email addresses, vehicles, or customer information for personal gain.
If the side business requires subcontractors or staff, determine whether they are genuinely independent contractors or should be engaged through employment or another lawful arrangement. Misclassifying a worker can lead to back payments, penalties, and disputes. Written agreements, accurate working-time records, and timely payments are especially important when the business begins to grow.
The ethical dimension also matters. A business owner who encounters forced labor, exploitation, or abuse should know where to seek support rather than treating the problem as an ordinary commercial dispute. Information about legal aid for trafficking victims can help connect vulnerable people with appropriate assistance and reinforce responsible business practices.
Plan for risk, growth, and personal protection
Before launching, estimate realistic monthly costs: registration and accounting, taxes and contributions, banking, software, marketing, insurance, transport, equipment, and professional training. Set aside money for tax payments instead of treating every client payment as disposable income. A separate reserve can prevent missed deadlines when revenue fluctuates.
Consider professional liability insurance if a mistake could cause financial harm to a client. Product sellers should review warranties, returns, labeling, and safety obligations. Service providers should decide how revisions, cancellations, delays, and ownership of work will be handled. These details are easier to manage before a disagreement occurs.
Do not ignore personal legal needs while focusing on business paperwork. Financial instability can affect housing, family obligations, and access to justice. Practical guidance on eviction protection in Serbia illustrates why early legal advice matters when a problem threatens a person’s basic security.
A practical launch checklist
Use the following sequence to reduce avoidable mistakes:
- Review the employment contract, non-compete terms, confidentiality rules, and any required consent.
- Define the service or product, expected turnover, clients, operating address, and likely business risks.
- Compare an entrepreneur registration with an LLC, including liability, accounting, and tax consequences.
- Confirm tax, contribution, VAT, fiscalization, data-protection, licensing, and consumer-law duties.
- Register through APR, open the appropriate bank account, arrange accounting support, and issue documented invoices.
- Keep business assets, records, communications, and working time separate from the employment relationship.
A side business can begin modestly, but compliance should scale with it. Recheck the tax regime when turnover changes, review contracts as new clients arrive, and update permits or internal records when the activity expands. If the business becomes substantial, reassess whether the original legal form still provides appropriate protection.
For reliable legal and civic guidance, Nomcentar NGO provides accessible information and support for citizens and community organizations in Serbia. Taking advice before registration, signing a major contract, or hiring someone can help turn a promising side activity into a lawful and sustainable source of income.