How are postdocs & researchers taxed across borders?

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Answer

Fellowship and grant income is characterised differently from salary in most systems, and the student-or-trainee articles that exempt it run on a clock from arrival rather than from the start of the grant. A provision that applies to this occupation and not the one beside it is what changes the answer.

The rule for this group

Fellowship and grant income is characterised differently from salary in most systems, and the student-or-trainee articles that exempt it run on a clock from arrival rather than from the start of the grant.

Two of the firm’s advisers at a desk in the Delhi office

The case that is treated differently

My fellowship is called a stipend and taxed like a salary.

How are postdocs & researchers taxed across borders?
ItemAmount
Annual salaryC$220,000
Working days in the year222
Days worked in the other country69
Days worked at home153
Income sourced to the other countryC$68,378
Income sourced at homeC$151,622

C$68,378 is sourced abroad on this split, which is the figure the host country taxes and the figure the home credit is computed on. Reproduce this from a travel record, not from memory — it is the first thing an auditor asks for.

These amounts illustrate the mechanism only. The rates and thresholds are assumptions of the example, not your numbers: each is checked against the issuing authority for your specific tax year before any return is filed.

Where to go from here

The full treatment — who it binds, the deadline, the penalty and the fixed fee — is on Cross-border tax for postdocs & researchers. Ask before the move rather than after it, because most of the useful options expire on the date.

Checked and signed off for the 2025 and 2026 filing seasons by Udit Gupta, Cross-Border Tax Expert, Legal Quotient Consultants. Published as general information. For a position on your own file, call the 24-hour helpline.

International tax accountant — what this page covers

Readers arrive here searching for international tax accountant, and postdocs & researchers is what the page is about. Below: who it catches, what has to be filed, and what it costs — quoted in writing, before anything is done.

Files that look like this one

Case study 1

Fellowship recharacterised after a payroll treated a stipend as wages

A researcher arrived to take up a named fellowship and found the institution had run the whole of it through employment payroll, withholding at wage rates. We obtained the award letter and the funding conditions, established what the money was paid for and which article it fell under, and set the characterisation out in writing with the supporting documents attached. The engagement produced a filed position on the character of the fellowship, a corrected treatment for the remaining instalments, and an adjustment request covering the periods already withheld.

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Case study 2

Exemption clock rebuilt from immigration records rather than contract dates

A postdoc had been advised that the exemption ran from the first stipend payment. It ran from arrival, and arrival had been a year earlier on a different status. We reconstructed the presence history from passport stamps, visa grants and tenancy documents, dated the start of the period on that evidence, and identified the month the exemption had in fact ended. The work produced a dated presence schedule, a split-year computation for the affected year, and a corrected return for the portion that had become taxable.

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Case study 3

Consecutive short contracts reviewed as one continuous presence

An academic had moved through a series of short appointments at the same host institution, treating each as a fresh start for exemption purposes. The article counts presence, not contracts. We set out the full period of presence, showed where the exemption had expired, and identified which appointments fell wholly outside it. The engagement produced a written position covering the whole run of contracts, amended host-country filings for the years after expiry, and a matching credit claim on the home return.

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Case study 4

Residency day-count statement filed for years never claimed

A researcher had been treated as resident in the host country for a long period because days spent under training status had never been excluded from the count. That exclusion is claimed rather than granted. We assembled the status history, prepared the statement for each year still open, and filed them with an explanation for the delay. What the engagement produced was a reassessment of the residency position for those years and a single consistent basis for the returns still to be filed.

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Case study 5

Split-year sourcing prepared for a move between two universities

A postdoc spent part of a year at an institution abroad and the remainder at home, with each employer withholding as though it had the whole year. We built a working day record from travel documents and teaching timetables, sourced the income to the place the work was done, and reconciled each set of withholding against what the country concerned was entitled to. The result was a sourcing schedule both authorities could follow, a credit claim on the home return, and a repayment claim where withholding had exceeded the liability.

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Case study 6

Unfiled home-country returns brought up to date during a fellowship

A researcher on a multi-year fellowship abroad had stopped filing at home, having been told the fellowship was exempt. Exemption in the host country and the home filing obligation are different questions. We established that residency at home had never been broken, prepared the outstanding returns for each year, reported the fellowship with the treaty treatment applied, and made the disclosure before any enquiry began. The engagement produced a complete filing history, an agreed treatment of the fellowship at home, and closure of the years in question.

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Case study 7

A US LLC Owned by a Canadian, Taxed Twice by Design

The two countries classify an LLC differently, so the credit relief that ought to apply frequently does not. The engagement looks at whether the structure can be changed, and where it cannot, at how to make the credit work.

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Case study 8

Years Filed Quietly, and What That Cost

Posting missing returns without taking a view on the route gives up the certification-based protection and can itself be read as an indicator. The first task on these files is mapping which years remain eligible for which route.

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Postdocs & researchers: further questions

Is my postdoc fellowship taxed as salary or as a grant?

Characterisation is decided by what the money is for, not by the word printed on the payment advice. A fellowship or grant paid to support your own research and training is treated differently from wages paid for work performed for an employer, and the two fall under different rules in most systems. The difficulty is that a university payroll department has one process and runs a stipend through it as employment income because that is the process it has. Ask the institution which characterisation it applied and on what basis, then check that against the article your own treaty uses. Where the two disagree, the fix is a documented position rather than a phone call.

When does the student and trainee treaty exemption clock start?

From your arrival in the host country, under most treaties, rather than from the date the grant begins or the date you were first paid. That distinction decides more disputed cases than any other feature of these articles. Researchers routinely arrive on one status, spend a period unpaid or on a different funding line, and only then start the fellowship — by which point part of the exemption period has already run. Work the start date out from immigration and travel records before you rely on the exemption, and keep those records. The clock is a question of fact, and the fact has to be provable.

My postdoc exemption ran out mid-contract, what now?

Nothing in these articles stops an exemption expiring in the middle of an engagement, and when it does the same stipend becomes taxable where the work is done from that point on. The usual mistake is to treat the year as a single unit. It is not: the year splits, part of the income falls inside the exemption and part does not, and the withholding almost never adjusts itself. Expect to compute the split, reconcile what was actually withheld against what was due, and claim credit at home for the taxed portion only.

Do days spent on a research visa count towards residency?

They count unless something is filed to exclude them, and in our experience that filing is routinely missed by academic arrivals. Many systems allow certain days present under a study or training status to be left out of the residency day count, but the exclusion is not automatic. It is claimed, on a statement, for the year in question. Researchers who never made the claim are often assessed as resident for the very years they believed themselves exempt. If nobody has ever filed it on your behalf, assume it has not been filed.

I moved between universities in two countries, who taxes what?

Each engagement is looked at separately. Income is sourced to the place the work was physically done, so a year split across institutions in different countries produces two sourcing positions, two possible exemption claims, and one home return that has to reconcile both. The travel record is the evidence for the split, and it needs to be a record rather than a reconstruction. Build it from boarding passes, entry stamps, tenancy dates and contract dates while they are still to hand, because the alternative is asserting a split you cannot support.

Does my home country still want a return while I am on a fellowship abroad?

Usually yes, for as long as you remain resident there, and being exempt from tax in the host country does nothing to remove that obligation. The two questions are separate: whether the host country may tax the fellowship, and whether your home country still requires you to report it. Academics on a run of short contracts often remain resident at home throughout, and the returns nobody filed accumulate quietly. Filing them before anyone asks is a materially better position than filing them afterwards.

Do NRIs pay tax on money sent to India?

Sending your own funds to India is a transfer of capital, not income, so the remittance itself is not taxed. What is taxable is income the money then earns in India — interest, rent, capital gains — under the rules for the account type it sits in. Sending money out of India is the direction that needs certification before the bank will act. See NRE, NRO and FCNR accounts.

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.

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