Double tax is the fear that two countries will tax the same income in full. A treaty is one of the tools that can prevent that, by limiting one country’s right, by reducing withholding, or by requiring a credit. It is a legal text between two states. It is not a personal ruling, and it does not exist between every pair of countries.
Residence comes before the treaty
Most treaties ask where you are resident. If both countries say you are, the treaty may use tie-breakers. If you skip the residence question and jump to a dividend article, you are reading the wrong page. Settle, with advice if the year is unclear, which country is treating you as resident.
Different income, different articles
Employment, business profits, dividends, interest, royalties, pensions and gains on property are commonly dealt with separately. A result for dividends says nothing about rent from a flat, or about a salary for work performed in the other country. Read the article that matches the income, including any limitation that says the relief does not apply if you have a permanent establishment or a fixed base there.
Withholding and credit are different reliefs
A reduced withholding rate means less tax taken before you are paid. You may still have to declare the income where you live, and you may receive a credit for what was withheld. The credit can be limited. Forms, residency certificates and deadlines are how this becomes real. A treaty article you have not claimed is not in your bank account.
A treaty allocates taxing rights between two countries
A double-tax treaty is an agreement between two countries about which of them may tax particular kinds of income or gains, and about how the country that still taxes you should take account of tax paid in the other. It is not a promise that you will pay nothing, and it is not a promise that you will pay only in the country where you live. Each article deals with something specific: employment, pensions, dividends, property, business profits. An answer about your salary does not answer your rent.
Treaties often include a residence article for people who would otherwise be resident in both countries under domestic law. The tests in that article — a permanent home, a centre of vital interests, habitual abode, nationality — are applied to facts, and they are a poor place for improvisation. A qualified adviser should read the treaty that actually exists between the two countries in your year. Treaties are amended, and a summary you remember from a previous move may be the wrong text.
Relief still has to be claimed in the way the country asks
Even where a treaty limits tax, a form, a certificate of residence or a particular box on a return may be required before a bank or a tax authority applies the limit. Ask what the payer needs, and ask what you must still declare. A reduction at source and a credit on a return are different mechanisms. Neither happens because the treaty exists in the abstract.
Keep the treaty citation your adviser relied on, the certificate if you obtained one, and the calculation that shows foreign tax against the tax at home. If a country asks later, that file is the explanation. If no treaty exists for the pair of countries, say so early. The absence of a treaty is a fact, and it sends you back to domestic rules on foreign tax rather than to a residence tie-breaker that is not there.
A practical checklist
- Confirm a treaty exists between these two countries.
- Confirm residence under it.
- Match each type of income to an article.
- Ask about withholding and about tax in the country of residence.
- Collect the forms before the payment, not after.
- Keep the certificate and the evidence of tax withheld.
Questions to ask
- Is there a treaty, and am I resident under it?
- Which article covers this income?
- Can tax still be taken at source, and at what kind of limit?
- Do I also declare it where I live?
- Is a credit available, and what evidence does it need?
- Does a home or a permanent establishment change the answer?
Common mistakes
- Quoting a treaty between the wrong countries.
- Applying a dividend rate to rent or salary.
- Assuming reduced withholding means no further tax.
- Missing the form, so the full rate is taken.
- Treating a treaty as a reason not to consider residence at all.
WiT Access provides general information and comparison resources. Nothing on this website constitutes financial, tax, legal or investment advice. Always consider obtaining advice from an appropriately qualified professional.
