Hiring your first employee in Czechia: what to expect

Your first employee is a milestone — a sign the business is growing and that you can no longer do everything yourself. It is also the moment an entrepreneur becomes an employer, with a set of duties that have to be met within precise deadlines. None of it is unmanageable, but it pays to know what lies ahead before your new colleague starts.

Most of the obligations cluster around the start date: a written contract, registrations with the authorities and setting up payroll. On top of that, a tighter rule applies from 1 July 2026 that moves one of the registrations to before the start date itself — and that is exactly where first-time employers most often slip up. Let's walk through the whole process in order.

When you become an employer

The day an entrepreneur becomes an employer is the day the first employee starts work. It makes no difference whether you employ through an s.r.o. or as a sole trader — the duties are the same in both cases and all of them are tied to that day. It is the starting point for the registration deadlines and the moment the company enters into a relationship with the Czech Social Security Administration (ČSSZ) and with the health insurer.

The first administrative duty is to register in the register of employers at the relevant district social security office, within 8 calendar days of the day you became an employer. The filing is now made exclusively electronically — through a data box or the ČSSZ portal. This registers the company as a payer of insurance premiums and opens access to the other filings.

The employment contract and what it must contain

The relationship rests on a written employment contract. The Labour Code requires it to contain at least three essential elements — the type of work, the place of work and the start date. Without them the contract is not in order, and the employee must receive one signed copy on the start date itself.

Alongside the contract it pays to think through the wage in advance, any probationary period (up to four months, eight for managers) and the scope of the work. If you employ part-time or through an agreement to perform work, the rules differ slightly, but the registration duties towards the authorities remain. A detailed overview of everything an employer must meet is set out in the article on employer obligations.

The registrations you must not miss

Three registrations await you around the start date. You register yourself as an employer in the register of employers within 8 days (see above). You must report the employee's start to their health insurer within 8 calendar days. And thirdly, you register the employee for social insurance with the ČSSZ.

This is where the most important change lies. From 1 July 2026 it is no longer true that an employee is registered for social insurance up to 8 days after starting — now you must register them before they begin work. You can register them at the earliest 8 calendar days in advance, but at the latest at the moment they start. The rule applies to employment contracts and to agreements to perform work alike, and it is part of the new unified monthly employer report. Example: if an employee starts on Monday morning, the registration must be sent to the ČSSZ by Sunday evening at the latest, not sometime during the following week.

What an employee really costs

The gross wage is not the whole cost. On top of it the employer pays, out of its own pocket, 24.8% for social insurance and 9% for health insurance — 33.8% in total. The employee, by contrast, has 7.1% for social and 4.5% for health insurance (11.6% together) deducted from their wage, plus an income tax advance.

In practice this means an employee on a gross wage of CZK 40,000 costs the company around CZK 53,520 a month — the difference being the employer's contributions. You also have to reckon with the statutory floor: the minimum wage in 2026 is CZK 22,400 a month (CZK 134.40 an hour), below which you may not go for a full-time role. Most small firms leave payroll — calculating net wages, contributions and the monthly filings — to an accountant, because mistakes are easy to make here and the penalties are not trivial.

Employee, or working with a sole trader?

With the first person, the question often arises whether to employ them or to work with them as a sole trader invoicing the company. Working with a sole trader is simpler administratively and the company pays no insurance premiums for them — tempting, especially on a tight budget. But there is a clear limit.

If the person works like a regular employee — at fixed hours, on the premises and following the company's instructions, merely sending an invoice instead of receiving a salary — it is a disguised employment relationship, the so-called švarcsystém, which is prohibited and carries substantial penalties on inspection. Where the line lies and when cooperation still counts as legal is examined in the article on the employee versus contractor question.

Conclusion

A first employee brings manageable but precisely timed paperwork: a written contract with the essential elements, the employer's registration within 8 days, the notification to the health insurer within 8 days and — new from July 2026 — the social insurance registration before the start date. Prepare these steps in advance and leave payroll to an accountant, and you can devote yourself fully to the reason you hired someone in the first place — growing the company.

Frequently asked questions

By when must I register my first employee for social insurance?

From 1 July 2026 you must register the employee before they start work (previously it was within 8 days of the start). You can register them at the earliest 8 calendar days in advance. You register yourself as an employer in the register of employers within 8 calendar days of becoming an employer. You notify the health insurer of the start within 8 days.

How much does an employee really cost on top of the gross wage?

On top of the gross wage the employer pays 24.8% for social insurance and 9% for health insurance — 33.8% in total. On a gross wage of CZK 40,000 that is roughly CZK 13,520 extra a month, so the total cost is around CZK 53,520. The employee also has 11.6% deducted from their wage (7.1% social + 4.5% health) plus an income tax advance.

Does the employment contract have to be in writing?

Yes. The Labour Code requires a written employment contract, and it must contain at least the type of work, the place of work and the start date. One copy belongs to the employee. Without these elements the contract is not in order and problems can arise on inspection.