Permanent establishment: when one person creates a tax presence

Current to September 11, 2026.

A company can acquire tax obligations in a country it has never registered in, through nothing more than where one person sits.

Permanent establishment is the concept that decides whether a business is taxable in a country it operates into rather than from. Most tax treaties approach it the same way: a fixed place of business through which the enterprise carries on its business, plus a separate rule for people who habitually conclude contracts on the enterprise’s behalf.

Neither limb requires an office, a lease or a registration. Both can be satisfied by arrangements that were never designed with tax in mind.

What tends to trigger it

A salesperson who negotiates and closes in another country. A senior employee who works permanently from home abroad and makes decisions there. A dependent contractor acting for one principal. Equipment or premises used regularly, even informally. Time matters too: a project of long enough duration can constitute a permanent establishment on its own.

What generally does not trigger it: activity that is genuinely preparatory or auxiliary, and a truly independent agent acting in the ordinary course of their own business. The distinction is one of substance, and it is drawn more narrowly than most people assume.

What follows if there is one

A filing obligation in that country, and tax on the profits attributable to the presence. Withholding and payroll obligations often follow separately, on their own rules and their own timetable. Interest and penalties accrue from the original due date, not from the date the problem is noticed — which is what makes this expensive when it surfaces three or four years in.

Reducing the risk

The exposure is a function of what people actually do, so it responds to how roles are defined and how authority is allocated. Limiting contract-signing authority, structuring the engagement deliberately, or accepting the presence and registering for it are all legitimate answers. Which is right depends on how central the arrangement is and how long it is expected to last.

Whether a presence exists is determined under the domestic law of the country in question and under any applicable treaty, so the analysis is run separately for each country involved. See working across a border and tariff exposure and tax.