What is a permanent establishment, and why does it matter?

What counts as a permanent establishment

A permanent establishment is a presence in a country that is strong enough for that country to tax the profits linked to it. Most tax treaties follow the definition in the OECD Model Tax Convention: a fixed place of business through which the business of an enterprise is wholly or partly carried on.

The treaty between Estonia and your country is what applies in practice, and each country’s own law may use a wider definition where no treaty applies. The main tests are similar in most treaties:

The tests look at facts, not paperwork. A company can have a permanent establishment in a country without registering anything there, and registering an office somewhere does not create one if no business is carried on through it.

Why it matters for an Estonian company run from abroad

A permanent establishment gives the other country the right to tax the profits that belong to it. For a one-person company whose founder lives and works abroad, that can be most of the company’s profit.

The Estonian Tax and Customs Board (EMTA) says that when an Estonian company is managed outside Estonia, its income can become taxable abroad, and that with a permanent establishment abroad, taxation follows the applicable tax treaty. The e-Residency programme’s own guidance uses the example of a founder who lives and works in another EU country: because the work is done there, the company would need to register a permanent establishment there.

If a permanent establishment exists, the company usually has obligations in that country:

1. Registration with the local tax authority, and sometimes with a business register.
2. Bookkeeping that separates the profits belonging to the permanent establishment.
3. Tax returns and payments in that country on those profits, under its own rates and deadlines.
4. Treaty relief so that the same profits are not taxed in full twice. EMTA explains that dividends paid out of profits taxed through a foreign permanent establishment can be exempt from corporate income tax in Estonia.

Estonia’s own model matters here too. Tax on profit kept in an Estonian company is 0% (source: emta.ee, checked 3 Oct 2026), and tax is paid when profit is distributed. Another country taxing a permanent establishment usually taxes profits when they are earned, so the timing can differ from what you expect from Estonia’s corporate income tax.

Permanent establishment and place of effective management are different

The two concepts are often confused, but they have different effects:

• A permanent establishment lets another country tax part of the company’s profits. The company stays resident in Estonia.
• Place of effective management is about where the company’s key decisions are made. It can lead another country to treat the whole company as resident there, and a tax treaty then decides which residency takes priority.

A founder who both works and makes all decisions from home could raise both questions at once. What is “place of effective management”? covers the second one, and does e-Residency make me tax-resident in Estonia? explains why e-Residency changes neither.

How to look at your own situation

This site can’t tell you whether your company has a permanent establishment. These steps help you prepare the facts for someone who can.

1. List every place work is done for the company, by you or anyone else, and how often.
2. Find the tax treaty between Estonia and your country, and read its permanent establishment article. Your tax authority usually publishes or links to it.
3. Check your country’s domestic rules, which apply where no treaty exists and may define a permanent establishment differently.
4. Run the fit check to turn your situation into a list of concepts to raise.
5. Ask a tax adviser in your country whether registration is needed, before you start trading if you can.

Your country may also have controlled foreign company rules, which work differently again: they can tax profits of a company you control even when there is no permanent establishment.