What makes professors & lecturers different from an ordinary filing?
Many treaties contain a professors-and-teachers article that exempts remuneration for a limited period from arrival — and the period does not restart for a second appointment in the same country. An ordinary preparer applies the general rule and stops there, which is how the relief in the specific provision goes unclaimed.
Can you work with my existing accountant?
That is how most of these engagements run. They keep the domestic file, we take the cross-border piece, and the boundary is agreed in writing so nothing is done twice or missed.
Are my first years of university salary exempt in the host country?
Possibly, but not automatically. Many treaties carry a professors-and-teachers article exempting remuneration for teaching or research for a limited period counted from the date of arrival. The exemption belongs to the treaty, not to the university, so the first thing to establish is whether the treaty between your two countries contains such an article at all, and what it covers. Some cover teaching only. Some include research. Some exclude research undertaken primarily for the private benefit of a particular person or sponsor. A payroll department saying your first years are exempt is not the same as the article saying so, and only one of those two survives a query.
Does the professor exemption start again if I take a second appointment?
No. The period runs from your arrival in that country, and a new contract, a new institution or a break between posts does not reset it. This catches people who leave for a year and return, and people who move between faculties in the same country. Once the period is used up, remuneration falls back into the ordinary employment article and the host country taxes it in the usual way. Plan for that date rather than discover it. The withholding change is abrupt, and the return for the year in which the exemption expires normally splits into an exempt part and a taxable part.
Which country taxes my research grant if the funder is somewhere else?
Three questions decide it, and they are answered separately. First, is the grant remuneration for services, or a payment made to support you or the project? The wording of the award letter matters more than the label on it. Second, does it fall inside the professors-and-teachers article, which in many treaties covers teaching and research but not every kind of award. Third, if it does not, which other article applies, or does it fall to the provision for income not dealt with elsewhere. Grants from a third country often sit outside the treaty you were relying on altogether.
Do I still file at home if my host salary is treaty-exempt?
Usually yes. An exemption under a treaty article decides which country may tax the income. It does not decide whether you have a filing obligation, and the two are rarely the same question. If you remain resident at home, most systems require worldwide income to be reported and then relieve the exempt portion by claim, which means the salary appears on the return and is removed by the claim rather than left off it. Leaving it off produces the same tax but no record of the position taken, and it is the record that answers the enquiry two years later.
How is my pay taxed during a sabbatical year spent abroad?
Start with residency, not with the salary. A sabbatical can leave your residency untouched, move it, or make you resident in both countries with the treaty tie-breaker deciding between them. That answer then drives everything else: which country may tax the salary, whether the host country professors article is available to you at all, and how the year divides. Where your home institution keeps paying you while you work abroad, the identity of the employer, the place the work is performed and the question of who ultimately bears the cost can point in different directions. Each is a separate condition, not one test.
Does my home country tax royalties I earn while teaching abroad?
Royalties sit in a different article from employment income and are not swept up by a professors-and-teachers exemption, so a book or a set of course materials can be taxable in a country where your salary is not. Typically the treaty lets the country of residence tax royalties and caps what the source country may withhold, with a claim to be lodged before payment if the reduced rate is to apply at source rather than be reclaimed afterwards. Publishers routinely withhold at the domestic rate because nobody filed the form, and recovering it later takes considerably longer than getting it right first.
What is a totalization agreement and how do I use one?
A social security agreement that stops you contributing to two systems for the same work, and lets periods in both count towards benefit eligibility in either. Which system you stay in depends on the agreement's rules for your situation — a seconded employee usually remains in the home system for a set period, a locally hired one usually joins the host system. You evidence it with a certificate of coverage obtained before or shortly after the assignment starts. See certificates of coverage.
How do you avoid double taxation?
You claim relief once, in the right country, in the right order. Usually the source country taxes first, the residence country then gives a credit for that tax against its own charge on the same income, and a treaty caps the source-country rate. Getting the order wrong is what produces a double charge you then have to unwind. The mechanism differs by income type, which is why we map the whole position before filing either return. See how to avoid double taxation.
