How is an ai & deep-tech startups business taxed across borders?

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Answer

Where research and development is performed, funded and owned determines which country is entitled to the profit from the resulting intangible — and that is decided by conduct long before any exit. The first foreign obligation in this sector is rarely income tax, which is why it is discovered late.

The rule for this sector

Where research and development is performed, funded and owned determines which country is entitled to the profit from the resulting intangible — and that is decided by conduct long before any exit.

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

When the rule breaks

Our team is distributed and our intellectual property ownership is unclear.

How is an ai & deep-tech startups business taxed across borders?
ItemAmount
Value at vestC$146,000
Vesting period (months)36
Months worked in the first country9
Months worked in the second country27
Apportioned to the first countryC$36,500
Apportioned to the second countryC$109,500

Two countries tax slices of one gain: C$36,500 and C$109,500 on this apportionment. Where their taxing points differ — grant, vest, exercise or sale — the credit can arrive in a year the other country is no longer taxing, which is the mismatch to plan around.

An illustration, not a client file. The sums are chosen for legibility and the thresholds are stated for the example alone — nothing reaches a filing until it has been confirmed at source for your own year.

Your next step

The full treatment — who it binds, the deadline, the penalty and the fixed fee — is on Cross-border tax for ai & deep-tech startups. If you already have an adviser, we will tell you what they should be asking rather than replacing them.

Reviewed for accuracy 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 planning for technology businesses — what this page covers

Readers arrive here searching for international tax planning for technology businesses, and AI & deep-tech startups 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

Reconstructing who owned the technology before an investment

A company preparing to raise found it could not show a clean chain of ownership for its core technology. Early contributors had worked under informal arrangements, and some agreements contained no assignment at all. We worked back through the engagement records, identified every contributor and the period they worked, and obtained confirmatory assignments where people could still be reached. Where a contributor could not be traced that was recorded rather than glossed over. The engagement produced a documented ownership chain, confirmatory assignments on file, and a standard agreement that has been used for every engagement since.

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Case study 2

Research claims made where the development was not performed

The group claimed a research incentive in one country while a growing share of its engineering was performed in another. Costs had been recorded by the entity that paid them, which said nothing about where the work happened. We rebuilt the cost records on a where-performed basis for the period under review and set out which expenditure supported the claim on that basis. The engagement produced restated cost schedules, a revised claim that the records support, and a time-recording practice capturing location, so the same analysis now takes days rather than weeks.

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Case study 3

Intercompany agreements signed before the technology had value

A founder-led group intended to build in one country and hold the technology in another, and had been operating that way for a year with nothing written down. We set out what the arrangement actually was, covering who funded the work, who directed it and who bore the risk if it failed, then drafted agreements describing that rather than an idealised structure. The engagement produced signed development and funding agreements, a board minute record of where technical decisions are taken, and a valuation note for the position as it stood at the date the arrangement began.

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Case study 4

A founder relocation that changed the research picture

The technical founder moved country, and the decision-making about the research programme moved with them. Nothing in the group's paperwork changed. We reviewed what that person actually did in each location, the effect on where development was directed from, and the payroll position in the new country. The engagement produced a written assessment of the change, a payroll registration where the founder now works, revised agreements reflecting where technical direction now sits, and a recommendation on which entity should fund the programme from that point forward.

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Case study 5

Diligence that found an undocumented research arrangement

An acquirer's advisers asked for the agreements supporting the group's development arrangement and received nothing beyond invoices passing between the companies. Invoices describe payments, not arrangements. We prepared the analysis that should have existed from the start: who performed the work, who funded it, who controlled it, and how the pricing between the companies had been arrived at. The engagement produced a transfer pricing file covering the period, agreements executed to reflect the arrangement going forward, and a disclosure note for the sale documents setting out the years where only the reconstruction exists.

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Case study 6

Testing a proposed structure against where people actually work

An investor proposed a holding structure assuming development would sit in a particular country. The group's engineers were elsewhere and none of them was moving. We compared the proposal against the location of the people, the funding flows and the decision-making, and identified where the structure would fail to describe the business. The engagement produced a revised proposal the group could support, a note of what would have to change operationally for the original version to work, and a valuation range for the intangible as it stood at the date of the discussion.

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Case study 7

Selling Into the US Without an Entity, and Filing in Several States

State obligations are set by each state, and a treaty does not reach them. The review measures activity against each state's own thresholds and separates the states where registration is required from the ones where it is not.

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Case study 8

A US Citizen Settled in India, Filing on Both Sides

Residence in India and citizenship in the United States produce two annual returns for one income. The order decides the credit, and the Indian financial year and the US calendar year have to be reconciled before either is prepared.

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All case studies — every published engagement in one place.

Core International & Cross-Border Tax Services

International Tax Planning & Advisory

Strategy and compliance for income, assets and families spread across borders.

One coordinating team: filings on every side of the border are sequenced so treaty relief and foreign tax credits are claimed once — and in the right country.

U.S. & Cross-Border Tax Returns

Dual filers: U.S. citizens in Canada and Canadians with U.S. income run two parallel systems — we prepare both, in the right order, every year.

Expat & Emigration Tax

The move year is its own project: the elections and valuations filed that year decide the next decade of both countries’ returns.

Non-Resident Canadian Tax

Default withholding is 25% of gross: elective returns routinely turn over-withheld rent and pensions into refunds.

Transfer Pricing & BEPS

Documentation prepared with the return is the cheapest insurance in international tax; reconstructing it during an audit is the most expensive.

Cross-Border Estates & Trusts

Wills drafted for one country routinely misfire in the other — deemed disposition here, estate tax there, credits in between.

Cross-Border Corporate Tax

Expansion raises the same four questions every time — entity, PE, repatriation, payroll. We answer them before the tax authorities do.

India Tax for NRIs & Returning Residents

The deduction is taken on the sale price, not the gain — which is why an NRI property sale strands cash unless the certificate is applied for before closing.

Canadian Tax with a Foreign Element

Residency is decided on facts, not on a form — and the year you arrive or leave is the one where the largest amounts turn on the smallest details.

UAE Tax for Expats & Their Home Country

A zero-tax country is only half the answer — the question that decides the bill is whether the country you came from still treats you as resident.

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Firms and partners working across borders meet Regulation 105 withholding, PE risk on long engagements and per-country payroll for travelling staff.

A partnership is taxed in the hands of its partners, so one engagement abroad can reach every partner's personal return. The order matters: the waiver is applied for before the invoice, the presence is tracked before it becomes an establishment, and the payroll is registered before the first day worked in the other country.

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AI & deep-tech startups: further questions

Who owns our IP if the code was written in another country?

Legal ownership follows your contracts and assignments. The tax answer follows conduct as well. Where research and development is performed, who funds it and who bears the risk of failure all feed into which country is entitled to the profit the intangible eventually produces. A holding company that owns the registered rights but does nothing, with no people, no decisions and no funding risk, is a weak position to defend. Check first that every founder, employee and contractor has actually assigned their work, because deep-tech companies frequently find gaps. Then make sure the group's agreements describe the arrangement that is really happening, and that they were signed when it began rather than reconstructed later.

Can we claim research incentives if our developers are abroad?

That depends on the incentive, and it is a question to settle before the claim rather than during an enquiry. Most research incentives are directed at work performed in the country granting them, and many restrict or exclude expenditure on work done elsewhere or paid to a foreign group company. A distributed engineering team therefore needs its costs tracked by where the work was performed, not simply by which entity paid the invoice. That record is also what a transfer pricing review will ask for, so the same evidence serves both purposes. Set up the time and cost records before the year in which you intend to claim.

Will moving our IP to a holding company trigger tax?

A transfer of an intangible between group companies is normally treated as a sale at market value, whatever is actually paid, so the question becomes what the intangible is worth on the date it moves. Moving early, before the technology has demonstrated value, is a very different exercise from moving after a product has traction, which is why this question tends to be asked a year too late. The country losing the asset and the country gaining it both have a view, and they may not agree on value. Expect to need a valuation, agreements made at the time, and a record of who performed and funded the work.

Our investors want a new holding structure, so what should we check?

Check what would move and what it is worth before agreeing anything. An investor-driven reorganisation usually proposes a new parent in a chosen country with the operating companies beneath it. If the intangible would move as part of that, the value on the day of the move is the taxable event, and that value changes with every month of product progress. Also check where your people actually work, because a structure assuming development sits in one country while the engineers sit in others will not survive examination. The structure has to describe the business. Anything else has to be unwound later, under pressure and at cost.

How do we evidence that our IP sits where we say it does?

With records made at the time, not a narrative written afterwards. The useful evidence is mundane: board minutes showing where technical decisions were taken, employment and contractor agreements carrying valid assignments, funding flows showing who bore the cost and the risk of failure, and project records showing where the work was performed. Where a group company is said to control development, there should be identifiable people there doing the controlling. Keep the intercompany agreements consistent with all of it. The test any authority applies is whether conduct matches the paperwork, and the paperwork is the part you can fix cheaply while the company is still small.

Do contractors abroad affect where our profits are taxed?

They can, on two separate fronts. The country where a contractor works may regard the relationship as employment on its own tests, whatever the agreement is called, which brings payroll obligations there. Separately, where that person's work is central to developing the technology, the country may argue that part of the resulting value belongs to it. Deep-tech groups often engage senior researchers as contractors for simplicity in the earliest period, then keep the arrangement long past the point where it fits what is actually happening. Review each engagement against the local tests where the person works, and confirm that every one of them has assigned their output.

Does California allow the foreign earned income exclusion?

No. California does not conform to it, so foreign salary a resident excludes on the federal return is still in the California base — and California does not give a credit for foreign tax in the way it does for tax paid to other states. The result is the same income taxed federally at zero and by California in full. Whether it applies at all comes back to whether you are still a California resident, which is the question worth answering first. See state residency and domicile.

What counts as foreign income, and what is a foreign tax?

Foreign income is income sourced outside the country you are filing in — where the work was done, where the property sits, where the payer is resident, depending on the type. A foreign tax, for credit purposes, is a levy imposed by another country that functions as an income tax and that you were legally required to pay. Consumption taxes, property taxes and most social contributions are not, however real the cost. Sourcing is decided by rule, not by which bank received it. See the foreign tax credit.

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