How Bulgarian Employers Can Adapt to Czech Labour Contracts

Article contents

• Understanding the Czech Labour Code framework

• Working hours, overtime, and rest periods

• Social security and health insurance obligations

• Risks and sanctions: what violations can cost your business

Understanding the Czech Labour Code framework

Bulgarian employers accustomed to more discretionary labour practices often underestimate how strictly Czech authorities enforce these requirements. The State Labour Inspection Authority (Státní úřad inspekce práce, or SUIP) conducts routine audits, investigates complaints, and imposes penalties that can reach up to 10 million Czech crowns for serious violations.

Unlike Bulgaria, where some regulatory flexibility exists in practice, the Czech system combines detailed legal requirements with rigorous enforcement. ARROWS Law Firm lawyers regularly handle cases where Bulgarian employers have faced significant penalties due to non-compliance with Czech labour regulations, and they understand the specific challenges your company faces when entering this market.

The three essentials of a valid Czech employment contract

Every employment contract in the Czech Republic must be in writing and include three essential elements that serve as the legal foundation of your employment relationship. These are not suggestions—they are mandatory requirements, and missing even one of them can render your entire contract invalid or subject to challenge.

Element one: type of work

The first essential is a clear agreement on the type of work the employee will perform. This must define the range of work tasks without being so broad that it allows you to assign any type of work to the employee. The specification should be detailed enough to create certainty but flexible enough to accommodate reasonable variations within the agreed role.

Many Bulgarian employers make the mistake of drafting extremely broad job descriptions thinking this gives them maximum flexibility. In practice, Czech courts interpret overly broad descriptions as unfair and may limit them to more specific tasks.

Additionally, if you later try to assign work outside the agreed scope without employee consent, you breach the employment contract. The employee can refuse such work, and you cannot use this as grounds for dismissal—instead, you would need to follow formal contract amendment procedures.

Element two: place of work

The second essential is specifying the place or places of work where the employee will perform their duties. You cannot transfer an employee to a different location without their written consent, even if you own multiple offices in different cities. If you operate facilities in both Prague and Brno, your contract must explicitly authorize work in both locations or clearly designate which office is the primary workplace.

This requirement creates practical complications for Bulgarian employers managing multinational teams. If you later discover you need an employee to work partially from a different city, you must obtain written agreement or formally amend the contract. Remote work arrangements also fall under this requirement; if work is to be performed from home, this must appear in the contract as an agreed place of work.

Element three: date of commencement

The third essential is the date when employment commences. This date is significant because it triggers multiple legal obligations: the start of probation periods, the accrual of annual leave entitlements, and the calculation of notice periods. The date must be specific; vague references like "as soon as possible" do not satisfy this requirement.

Beyond these three essentials, you must also provide employees with written information about annual leave entitlements, notice periods, weekly working hours, salary details, and any collective bargaining agreements that apply. This information can be included in the contract itself or provided through separate written notifications within 7 days of the commencement of employment.

Fixed-term contracts: the three-year maximum and the two-renewal rule

Bulgarian employers often use fixed-term contracts more extensively than Czech law permits. The Czech system imposes strict limitations designed to prevent what regulators view as disguised permanent employment through repeated short-term contracts. Understanding these rules is essential because exceeding them automatically converts your fixed-term contract to permanent employment.

The core limitation: three years and two renewals

A fixed-term contract cannot exceed three years from the date the first fixed-term contract was concluded. Additionally, it can be renewed a maximum of two times. This means the legal maximum is three consecutive fixed-term contracts (the initial one plus two renewals), provided the total duration does not exceed three years.

This creates a specific framework: if you hire an employee on January 1, 2024, on a one-year fixed-term contract, you can renew it twice. Once you reach the limit of three contracts or three years, any further engagement automatically becomes permanent employment. You cannot avoid this outcome by creating gaps between contracts or by using different contract types.

Exceptions for seasonal and replacement work

Czech law recognizes legitimate reasons for longer fixed-term arrangements. If there are serious operational reasons or the work is of a special nature (which must be defined in a written agreement with trade unions or internal regulations), exceptions may apply. However, these exceptions are strictly interpreted.

The difficulty lies in proving that the operational reasons are sufficient to bypass the statutory limits. The State Labour Inspection Authority scrutinizes these claims carefully. If you claim an exception but cannot prove legitimate grounds, inspectors will reclassify the contract as regular indefinite employment.

ARROWS Law Firm lawyers specialise in advising Bulgarian employers on whether their specific operational needs qualify for these exceptions and can document the basis for your classification to protect against challenges.

What happens at the expiration of a fixed-term contract

When a fixed-term contract reaches its agreed end date, the employment relationship ends automatically. No notice period is required, and no severance is paid unless agreed otherwise.

However, a critical risk exists: if the employee continues to perform work after the contract expires with the employer's knowledge, the contract automatically transforms into an indefinite (permanent) contract. This is often where employers face unexpected disputes—they intend to end the relationship but allow the employee to work "a few more days," inadvertently creating a permanent employee.

Probationary periods: strict rules and limitations

The Czech Labour Code regulates probationary periods strictly. Unlike some jurisdictions where probation can be informal, in the Czech Republic, it must be agreed upon in writing to be valid.

Maximum probationary periods

For regular (non-managerial) employees, the maximum probationary period is three consecutive months. For managerial employees (those who have the authority to manage subordinates), the maximum is six consecutive months.

The probationary period must be agreed in writing at the latest on the day employment commences. You cannot impose a probationary period after the employee starts work. Additionally, the probationary period cannot be longer than half of the agreed duration of the fixed-term employment relation.

Extension of probationary periods

Crucially, a probationary period cannot be extended by mutual agreement once validly established, unless the original period was shorter than the statutory maximum. You cannot extend beyond the statutory limits (3 or 6 months).

However, the law mandates an automatic extension for obstacles to work. If an employee is unable to work during the probationary period due to full-day obstacles (illness, vacation, other paid/unpaid leave), the probationary period is automatically extended by the number of these working days.

This automatic extension requires careful tracking; if you hire an employee on January 1 with a three-month probation, but the employee is sick for 5 working days in February, the probationary period automatically extends until April 7.

Working hours, overtime, and rest periods

The Czech Labour Code imposes mandatory limits on working hours and overtime that are more restrictive than many Bulgarian employers anticipate. These requirements apply regardless of employee consent or compensation level, and violations trigger both administrative penalties and potential liability to employees.

Standard working hours and maximum overtime

The standard working week in the Czech Republic is 40 hours, typically spread over five days. This is the legal maximum for regular working time. Overtime work is strictly limited: employees cannot be required to work more than 8 hours of overtime per week or 150 hours per calendar year unless they specifically agree in writing to exceed these limits.

Even with written employee agreement, the maximum overtime cannot exceed an average of 8 hours per week over a consecutive period of 26 weeks (or 52 weeks if a collective agreement permits).

Certain categories of employees are completely prohibited from overtime work, regardless of circumstances. Pregnant employees and adolescent workers cannot work overtime under any circumstances, and parents caring for children under one year cannot be ordered to work overtime.

Compensatory rest and time off

When employees work overtime, they are entitled to at least 25% of average earnings as a premium on top of their wages, or compensatory time off. Priority is given to payment unless the employer and employee agree on time off.

Employees also have statutory rights to rest: a minimum of 11 consecutive hours of daily rest between shifts and 35 consecutive hours of weekly rest. Since 2023, legislation has further clarified that daily rest must be truly continuous.

Termination, notice periods, and severance

Terminating employment in the Czech Republic is formalistic. The "at-will" employment concept does not exist.

Valid grounds for termination by employer

The Labour Code specifies the exact grounds on which employers may dismiss employees. These include operational grounds (redundancy), failure to meet job requirements, breach of work discipline, or health reasons based on a medical certificate. Simply deciding an employee "isn't a fit" is not a valid legal ground once the probation period ends.

Notice periods and immediate termination

The standard notice period is at least two months. Crucially, under Czech law, the notice period starts on the first day of the calendar month following the delivery of the notice.

If you deliver a termination notice on January 2nd, the two-month notice period begins on February 1st and ends on March 31st.

Immediate termination is permitted only for extremely serious breaches of discipline or criminal convictions. It is an exceptional measure and highly scrutinized by courts.

Severance payments

Severance is mandatory if termination is due to organizational reasons (redundancy). The amount depends on the duration of employment, ranging from one to three times the average monthly earnings depending on tenure.

If termination is due to an occupational accident or disease, severance is at least 12x average earnings. No severance is legally required for termination due to misconduct or poor performance.

Probationary period termination

During the probationary period, either party may terminate the employment in writing for any reason or no reason. While the law recommends 3 days' notice, it is legally effective as of the day of delivery unless a later date is specified. No severance applies.

Social security and health insurance obligations

Bulgarian employers operating in the Czech Republic must register for and pay mandatory social security and health insurance contributions for all employees working in the CZ territory.

Employer contribution rates

As of 2025, employers must pay 24.8% of the employee's gross assessment base for social security and 9% for health insurance. Employees contribute roughly 11.6%, which the employer deducts from their gross wage. The total cost to the employer is roughly 34% on top of the gross salary.

Registration and reporting obligations

You must register the company as an employer and every new employee with the Czech Social Security Administration (CSSA) and the relevant health insurance companies typically within 8 days.

Non-payment is not just a debt; it involves penalties and, in significant cases, criminal liability.

Special situations: EU citizens and foreign workers

If you employ Bulgarian citizens to work locally in the Czech Republic, they fall under the Czech social security system (Lex Loci Laboris principle). You cannot keep them on Bulgarian social security unless they are formally "posted workers" (with an A1 form) meeting strict temporary criteria. If they work permanently in CZ, they must be in the Czech system.

Minimum wage requirements

The Czech Republic has a statutory minimum wage. For 2025, the monthly minimum wage is 20,800 CZK for a standard 40-hour working week. The corresponding hourly minimum wage is approximately 124.40 CZK.

Furthermore, Czech law includes "Guaranteed Wages" (zaručená mzda) for the private sector, which sets higher minimums for more complex jobs. As of 2025, this system has been simplified into 4 groups, where salary levels for qualified work are higher than the basic minimum wage. You must ensure your salaries meet the level appropriate for the job complexity, not just the absolute minimum.

Common mistakes Bulgarian employers make when hiring in Czech Republic

Understanding where Bulgarian employers typically encounter problems can help you avoid costly errors. ARROWS Law Firm lawyers have identified recurring patterns in their work with Bulgarian clients entering the Czech market.

Mistake one: drafting overly flexible contracts

Bulgarian employers often draft contracts granting themselves discretion to assign "any work required." Czech courts interpret such contracts narrowly. If a role is not agreed upon specifically, the employee can refuse tasks outside the defined scope.

Mistake two: misunderstanding fixed-term contract expiry

Employers often let a fixed-term contract expire but allow the employee to come to work the next day to "finish up." This tacitly converts the contract to permanent employment. Once converted, you cannot terminate them without a valid statutory reason and notice period.

Mistake three: ignoring probationary period formalities

Failing to sign the probation clause before the work starts renders the probation invalid. The employer then discovers they cannot fire an underperforming new hire easily because, legally, there is no probation period.

Mistake four: misclassifying employees as independent contractors

Using trade license holders (OSVČ) to perform regular employee work is illegal. Czech authorities actively investigate "hidden employment." Penalties include fines up to 10 million CZK and assessment of all unpaid taxes and insurance contributions with penalties.

Mistake five: incorrect notice period calculation

Assuming the notice period starts immediately upon delivery. Bulgarian employers are often shocked to learn they must pay an employee for nearly three months after deciding to fire them (due to the "first day of next month" rule).

Cross-border employment and international considerations

If a Bulgarian company hires someone to work in Prague, mandatory provisions of Czech law apply regardless of choice of law clauses in the contract. You cannot opt out of Czech minimum wage, working hours, or termination protection for employees working in CZ.

Posting of workers

If sending Bulgarian employees to CZ temporarily, you must comply with the Posted Workers Directive. This involves notifying the Czech Labour Office and ensuring the employee receives at least the Czech minimum standards if they are higher than Bulgarian ones.

Risks and sanctions: what violations can cost your business

Executive summary for management

Key business implications for Bulgarian employers entering Czech market:

• Mandatory compliance framework: The Czech Labour Code applies to all employees working in Czech territory. You cannot contract out of these protections.

• Fixed-term contract traps: Contracts convert to permanent status automatically if limits are exceeded or work continues past expiry.

• Termination is rigid: Firing an employee typically takes 2+ months and requires valid statutory grounds. "At-will" employment does not exist.

• Enforcement is active: The Labour Inspectorate fines for hidden employment and overtime violations are significant.

• Strict formalities: Probation must be signed before work starts; notice periods follow strict calendar rules.

Conclusion

Understanding Czech labour law is not optional for Bulgarian employers—it is a prerequisite for legally compliant operations. Violations create substantial penalties, employee claims, and operational disruptions.

ARROWS Law Firm specialises in advising foreign employers navigating Czech labour law. Whether you are hiring your first Czech employee or managing a large team, our specialists can provide the guidance necessary to avoid costly mistakes.

Where local Bulgarian-law assistance is needed, ARROWS coordinates the relevant steps with its cooperating law firm in Bulgaria, Vassilev & Partners Law Firm.

Contact ARROWS Law Firm at consultation@arws.cz to discuss your needs.