Persons covered and anti abuse rules

Examining anti-abuse frameworks, the Principal Purpose Test (PPT), and Limitation on Benefits (LOB) provisions

This resource explains how Article 1 of the OECD Model Convention interacts with the two main anti-abuse frameworks that limit treaty access: the Principal Purpose Test (PPT) and Limitation on Benefits (LOB) provisions. The focus is on how these rules test whether a person is entitled to treaty benefits, and how they preserve a country’s right to deny treaties when the main purpose of an arrangement is to obtain those benefits.

Core idea

A tax treaty is not a free pass. Article 1 sets the personal scope, but anti-abuse rules test the purpose and structure of arrangements. The PPT denies treaty benefits when obtaining the benefit is one of the principal purposes of an arrangement or transaction, unless the benefit is consistent with the object and purpose of the treaty. The LOB approach limits treaty benefits to certain categories of persons, such as publicly traded companies, qualified entities, or persons meeting a derivative benefits test.

Many students assume treaties automatically apply to all residents. The PPT and LOB rules show that treaty access is conditional. The treaty looks beyond formal residence to the substance and purpose of the arrangement.

Why anti-abuse matters under Article 1

Article 1 says the Convention applies to persons who are residents of one or both Contracting States. That is the formal gateway. But the PPT and LOB provisions are designed to prevent treaty shopping and other artificial arrangements that would technically satisfy Article 1 but violate the spirit of the treaty.

In practice, the PPT is now a standard part of Covered Tax Agreements under the OECD BEPS Action 6 minimum standard. LOB is more common in US-style treaties and requires more detailed qualitative thresholds. Both frameworks aim to protect the integrity of the treaty and preserve the country’s right to tax its own residents while denying benefits to abusive arrangements.

The Principal Purpose Test (PPT)

The PPT is a broad, purpose-based test. It asks whether obtaining a treaty benefit is one of the principal purposes of an arrangement or transaction. If the answer is yes, the benefit must be denied unless granting it would be consistent with the object and purpose of the treaty.

The PPT is a general anti-abuse rule in the treaty context. It does not require detailed ownership tests or mechanical thresholds. Instead, it focuses on purpose, facts, and the economic reality of the arrangement. This makes it flexible, but also requires careful analysis of the taxpayer’s intent and the commercial rationale.

The PPT is important because it can override the formal application of other articles. Even if a person is a resident under Article 4 and the income falls within a distributive article, the PPT can deny the benefit if the purpose test is met.

LOB provisions

LOB provisions are more structured and rule-based. They define which persons qualify for treaty benefits based on categories such as:

• Publicly traded companies

• Companies owned by qualified persons

• Entities meeting a derivative benefits test

• Persons engaged in substantial business activities

LOB provisions are designed to prevent conduit arrangements and treaty shopping by requiring that the person seeking benefits has a genuine connection to the residence state. They are more common in US-style treaties and are often combined with a PPT clause in modern treaties.

The LOB approach is more predictable than the PPT because it uses clear mechanical tests. However, it can be more complex to apply and may require detailed analysis of ownership, business activities, and qualifying persons.

Comparing PPT and LOB

How PPT and LOB preserve treaty integrity

Both frameworks preserve the integrity of the treaty system. They prevent artificial arrangements that would technically satisfy Article 1 but undermine the treaty’s purpose. This is especially important in the context of hybrid entities and partnerships, where domestic law classifications may differ between states.

The PPT and LOB rules also help preserve a country’s right to tax its own residents by denying benefits to abusive arrangements. This ensures that treaty benefits are only available to persons who have a genuine connection to the residence state and whose arrangements are not primarily designed to obtain treaty benefits.

Learning check

Use these questions to test understanding:

• What is the difference between a purpose-based test (PPT) and a rule-based test (LOB)?

• Why is the PPT considered a general anti-abuse rule in the treaty context?

• How does LOB prevent treaty shopping?

• In what sense do PPT and LOB preserve a country’s right to tax its own residents?