International tax and permanent establishment

What a permanent establishment assessment answers

A permanent establishment, or PE, is a treaty concept used in assessing taxation of business profits. A fixed place through which business is carried on is a common starting point, but the applicable treaty can also address agents, projects and services.

Assess domestic tax law and treaty entitlement together. A conclusion that no PE exists does not settle every category of income, withholding obligation or other registration requirement.

Use the actual treaty and period

Identify the enterprise’s residence and the relevant treaty, protocols and applicable Multilateral Instrument modifications. Check commencement and effective dates. Do not substitute a model treaty or another country’s agreement for the governing text.

Construction and service thresholds differ between treaties. There is no universal day count that safely answers every PE question. Read the aggregation rules and exclusions as well as the headline threshold.

Map the operational facts

• Offices, project sites, customer premises and other locations used by the enterprise.
• Employees and other personnel present in each country, with activity and travel records.
• Who negotiates, approves and concludes contracts, and what actually happens in practice.
• Services, projects and connected contracts with their dates and scope.
• Local agents, group companies and the authority or resources available to them.

Review exclusions carefully

Where the treaty contains preparatory or auxiliary exclusions, test the actual activities against the wording and any applicable anti-fragmentation provision. Calling an office a liaison or support location does not establish its tax treatment.

Review the substance of the work, its relationship to the enterprise’s business and the activities of connected parties where relevant. Keep evidence supporting the conclusion.

Keep an assessment file

• Residence and treaty-entitlement documents.
• Organisation chart, contracts and delegation-of-authority records.
• Premises arrangements, project schedules and personnel travel logs.
• Descriptions of functions, assets and risks in each location.
• Dated treaty analysis and the assumptions that would trigger a fresh review.

Example: sales support becomes contract negotiation

An overseas enterprise initially uses a local team for market research. The team later begins negotiating key commercial terms and coordinating approvals. That change should trigger a fresh assessment of the applicable agency and other PE provisions. The original job title and an old no-PE statement are not enough to describe the new facts.

If a PE may exist, assess the consequences

Determine the relevant profit-attribution, filing, payment and recordkeeping obligations under the applicable law and treaty. Analyse attribution separately from the initial PE finding; the existence of a PE does not by itself establish the amount of taxable profit.

Coordinate the conclusion with withholding, transfer pricing, payroll and other workstreams. Keep any disagreement between jurisdictions visible so that available relief or dispute-resolution procedures can be assessed.

Review before the business changes

Build a tax review into new-country hiring, project extensions, office access, agency agreements and changes to contract authority. Update the assessment when facts change rather than waiting for the annual return.

For Tax Year 2026–27 and later Indian income, use the Income-tax Act, 2025 framework and relevant transition rules; retain the correct earlier-period analysis for historic matters.