US Company Formation from the Czech Republic (2026): OSVČ Flat-Rate Tax vs US LLC, s.r.o. Subsidiaries, the US–Czech Treaty and Czech Residence of a US Company

Czech developers, game studios and engineering firms sell a lot to the USA. Prague and Brno have deep pools of software talent, studios such as those behind the Arma and Kingdom Come series showed the world what Czech game developers can do, and thousands of freelancers bill American clients as OSVČ (self-employed). When they look at a US LLC, they usually find that the Czech system has already given them something better for their own work. But a US company still has clear uses: a US subsidiary for an s.r.o., a Delaware parent for investors, or a US contracting entity for clients that insist on one.

This guide explains how Czech tax law sees a US company, why it can become a Czech tax resident, how it compares with the OSVČ flat-rate tax, and how US LLC formation compares with US C-Corp formation for Czech owners.

In short: Czech residents can own 100% of a US LLC or C-Corporation, formed remotely. Czech tax law generally treats a US LLC with legal personality as a legal entity, and a US company managed from the Czech Republic can be a Czech tax resident, taxed at 21% on worldwide profits. Dividends to a Czech individual are taxed at 15%, with credit for US withholding. Freelancers on the paušální daň or using expense lump sums often pay less as OSVČ than through any company. The US–Czech treaty limits US withholding on dividends to 15% (5% for companies owning 10% or more) and exempts interest. With UCB, a Delaware corporation with EIN is $358 and a Wyoming LLC with EIN is $249, all-in.

How Czech tax law sees a US LLC

The IRS disregards a single-member LLC. Czech tax law does not take the US classification as given. A US LLC is a separate legal person under the law of its state, with limited liability for its members, and Czech practice generally treats such an entity as a legal entity (právnická osoba) for Czech income tax purposes, comparable to an s.r.o.

The consequences for a Czech resident owner:

• The LLC's profits are not your personal income as they arise. They are the profits of a foreign legal entity.
• Distributions are dividends from a foreign company, included in a separate tax base at 15%. The US does not withhold on a disregarded LLC's distributions, so the full 15% is due in the Czech Republic.
• The LLC itself may be taxable in the Czech Republic if it is managed from there (see below).

The Czech Republic has also adopted the EU anti-hybrid rules, including rules on reverse hybrids, which deal with entities that are transparent in one country and opaque in another. Ask your daňový poradce how they apply to your LLC.

When a US company becomes a Czech tax resident

A legal entity is a Czech tax resident if it has its registered office or its place of management (místo vedení) in the Czech Republic. The place of management is where the key management decisions are made. A single-member LLC whose owner makes every decision at home in Brno is managed from the Czech Republic.

If the Finanční správa treats the LLC as Czech-resident:

• the LLC is taxed at 21% on its worldwide profits (the Czech corporate rate since 2024);
• it must keep Czech accounts and file Czech corporate tax returns;
• its distributions to you are taxed at 15%.

The treaty contains a tie-breaker for companies resident in both countries, but a disregarded LLC is not a US resident under the treaty, so the tie-breaker rarely helps. In practice, a US LLC run by a Czech individual from home gives a result similar to an s.r.o., with extra US compliance costs and less legal certainty.

OSVČ: why the Czech system is hard to beat for your own work

For a freelancer doing their own work, the Czech self-employed regimes are generous:

• Expense lump sums (výdajové paušály) let an OSVČ deduct a fixed share of income as expenses without proof: 60% for most trades, including many IT activities registered as trades, and 40% for liberal professions, with caps on the income they apply to. Tax is 15% on the rest (23% on the part above the higher-rate threshold), plus social and health insurance.
• The flat-rate tax (paušální daň) replaces income tax, social and health insurance with one monthly payment, in three bands depending on income and type of activity, up to CZK 2 million a year. For many developers and designers earning under that limit, the total burden is very low.

Example: a developer in Prague

These are illustrative figures, not a client case, at CZK 23 to the dollar.

Petra is a front-end developer in Prague who earns US$70,000 (about CZK 1.6 million) a year from US clients.

• As an OSVČ on the paušální daň, she pays a fixed monthly amount in the band that matches her income and activity. That covers income tax and insurance.
• Through a US LLC managed from Prague, the LLC is likely Czech-resident: 21% corporate tax on its profit, then 15% on distributions, about 32.85% in total, plus accounting costs in two countries.
• Through an s.r.o., the same 21% + 15% result, with Czech legal certainty.

Petra stays an OSVČ. She forms a US LLC only if a client requires a US vendor. Even then, the LLC should be a pass-through for contracts and payments, paying Petra (as OSVČ) for her work, with her adviser's agreement on how it is reported.

US LLC formation from the Czech Republic

US tax position

A single-member LLC with a non-resident owner pays no US income tax if the owner works from the Czech Republic and the LLC has no US office, employees or dependent agents. There is then no US permanent establishment (see effectively connected income explained). The LLC files Form 5472 with a pro forma Form 1120 every year, and the penalty for missing it is $25,000 (see Form 5472 explained).

When an LLC fits

• An s.r.o. that needs a US contracting entity for a few US clients, without US staff. The s.r.o. owns the LLC, the LLC invoices US clients and pays the s.r.o. for the work at arm's length. Czech CFC rules apply to corporate owners of low-taxed foreign companies with mainly passive income, so keep the LLC's role active and documented.
• US rental property held by Czech investors (see real estate investment LLC for foreigners).

US C-Corp formation from the Czech Republic

US tax position

A US corporation pays 21% federal tax on its profits plus state tax, and files Form 1120 and Form 5472 every year (see the 21% corporate tax explained and the C-Corp guide for non-residents). Under the treaty, its dividends to an s.r.o. owning 10% or more are withheld at 5%, and Czech participation exemption rules generally exempt them in the s.r.o.

Example: a Brno software house's US subsidiary

Take an illustrative case: a 90-person Brno company that builds software for healthcare clients signs its first US hospital network. The client wants a US contracting party with US insurance, and the company hires a US account manager in Boston. It forms a Delaware corporation:

• The US subsidiary signs the contract, employs the account manager and pays US tax on its sales margin.
• The s.r.o. delivers the development and invoices the subsidiary at cost plus a margin, taxed at 21% in the Czech Republic. Transfer pricing is documented on both sides.
• Dividends to the s.r.o. are withheld at 5% in the USA and generally exempt in the Czech Republic.
• Interest on any loan from the s.r.o. to the subsidiary is exempt from US withholding under the treaty.

See US subsidiary for a foreign company.

Game studios and start-ups

Czech game studios that sign US publishing deals or raise from US investors often need a Delaware C-Corporation. Investors usually want it as the parent, with the Czech s.r.o. as the development subsidiary. A flip means the founders exchange their s.r.o. shares for Delaware shares, which has Czech tax consequences and needs planning. Royalties paid by the US company to the Czech studio for IP it keeps carry 0% or 10% US withholding, depending on the type, under the treaty. See raising US investment as a foreign founder and US LLC for app developers.

The US–Czech treaty

The treaty in force since 1993 sets these US withholding limits for Czech residents:

Claim them on Form W-8BEN or W-8BEN-E (see W-8BEN-E vs W-8BEN explained). Czech citizens are also eligible for the E-2 treaty investor visa.

Which state

• Delaware for a subsidiary, a start-up or a game studio's US company.
• Wyoming or New Mexico for a small LLC owned by an s.r.o.

See best state for non-residents and the state selector.

What it costs

UCB's prices include state fees and the first year of registered agent service:

• Delaware corporation with EIN: $358.
• Wyoming LLC with EIN: $249, or $348 with a US bank account application.

A Delaware corporation costs $578 a year to keep active. A Wyoming LLC costs $121 a year, or $421 with the annual federal return. A US business address with your own suite number is $60 a year. See what a US LLC costs every year.

Documents and banking

For an individual, a Czech passport or ID card and proof of address. For an s.r.o., a výpis z obchodního rejstříku (commercial register extract), translated into English, and a decision of the jednatel or general meeting approving the US company. US fintech banks accept Czech owners readily. See US business bank accounts for non-residents and Stripe for non-residents.

Mistakes to avoid

• Giving up a paušální daň or expense lump sum for a US LLC that costs more in tax.
• Running a US LLC from the Czech Republic and forgetting that it may be a Czech tax resident.
• Not declaring LLC distributions at 15% because no US tax was withheld.
• An s.r.o. owning a low-taxed passive US LLC without checking CFC rules.
• Missing Form 5472 in a year when no US tax was due.

Frequently asked questions

How does Czech law treat a US LLC? Generally as a legal entity, comparable to an s.r.o., not as transparent. Distributions are dividends taxed at 15%.

Can my US LLC be taxed in the Czech Republic? Yes, if it is managed from the Czech Republic. It is then a Czech tax resident taxed at 21%.

Is a US LLC better than OSVČ for a freelancer? Rarely. The paušální daň and expense lump sums usually give a lower total burden.

Is there a US–Czech tax treaty? Yes. Dividends 15% (5% for companies owning 10% or more), interest 0%, royalties 0% or 10%.

Does my US LLC pay US tax? Not if it has no US office, staff or agents. It files Form 5472 and a pro forma 1120 every year.

How UCB can help

We form US companies for Czech owners and s.r.o. companies remotely: the state filing, EIN, registered agent, US business address and bank application. We prepare W-8BEN-E treaty forms, and each year we file the US returns through our US tax filing service. Your daňový poradce handles the Czech side, and we give them the US records they need. See our formation, EIN and bank account package and the Slovakia guide for comparison.

Setting up a US company from the Czech Republic? WhatsApp us at +1 315 961 2956 or email enquiries@ucbsolutions.com.