Do I have to use the same price for customs and for transfer pricing?
Not necessarily, and that is the difficulty. The tax authority is asking whether the price you paid your affiliate left an arm's-length margin in the right country. The customs authority is asking whether the value you declared at the border was the right base for duty. Those are different standards applied by different officials to the same shipment. A price that satisfies one can be questioned by the other, so the sensible approach is to set the price knowing both tests will be run on it, and to keep a single record that explains the figure to either authority without contradicting itself.
Can a year-end transfer pricing adjustment cause a customs problem?
Yes, and it is the most common way the two regimes collide. An adjustment made after the year closes changes the price paid for goods that have already crossed the border and already been valued for duty. Fixing the margin for income tax purposes therefore reopens the declared value on entries you thought were settled. Before booking an adjustment, work out which entries it touches and what the customs position will be, because the correction may need to be disclosed as well as booked. The order matters: an adjustment designed without the border in mind creates the second problem while solving the first.
We buy stock from our parent company, so what price should we pay?
The price has to leave the buying company a margin that an unrelated distributor doing the same work, carrying the same risk and holding the same stock would expect. That means describing what each side actually does before arguing about the number. If the local company only takes orders and ships boxes, it should earn a modest and fairly stable return. If it carries inventory risk, funds marketing and owns customer relationships, more profit belongs to it. Set the price at the start of the year against that analysis, monitor it during the year, and you avoid the year-end correction that reopens your customs entries.
Why did customs accept our import value when the tax authority did not?
Because they are not testing the same thing. Customs is concerned that the declared value is not understated, since duty is charged on it. The tax authority is concerned that the price is not overstated, since an inflated purchase price moves profit out of the country. The relationship between buyer and seller pushes the two in opposite directions, which is exactly why a related-party price can pass at the border and fail on audit. Acceptance of a declared value is not a ruling on your margin, and nothing in a customs clearance stops a later adjustment to your taxable profit.
Who decides what goods bought from our own affiliate are worth?
Both authorities decide, separately, for their own purposes. Neither is bound by the other's conclusion, and neither will accept the phrase "this is what we charged internally" as an answer on its own. What decides the outcome is evidence: what functions each company performs, what risks each one genuinely carries, what comparable businesses earn, and how the price was arrived at before the goods moved rather than after. Where that evidence is prepared contemporaneously and the same story is told to both authorities, disagreements become arguments about method. Where it is assembled after a query arrives, they become arguments about credibility.
Should we tell customs when we change an intercompany price?
Treat it as a question to answer deliberately rather than a formality to skip. A price change alters the basis on which goods were or will be valued at the border, and the customs authority has its own procedures for corrections in either direction. Deciding after the fact, when a tax adjustment has already been posted, narrows the options that were available beforehand. Work out the border consequence at the same time you work out the income tax consequence, document the reason for the change, and make the disclosure consciously. Discuss the sequence for your own entries before anything is booked.
How many days can I spend in a country before I become tax resident?
It depends on the country, and a day count is only ever the start. Many use a threshold in a tax year, some also look at averages across several years, and some have no day test at all and decide on where your home and life are. Two countries can both conclude you are resident, which is what the treaty tie-breaker exists to settle. Counting days without checking the tie-breaker is how people end up filing as resident nowhere. See the residency tie-breaker.
How do families with assets in two countries handle inheritance?
With paperwork built for both systems rather than one. In practice that means wills that work where each asset actually sits, an executor with authority a foreign bank or land registry will accept, clearance certificates before the estate distributes so the executor is not left personally exposed, and an estate tax exposure calculation done while the person is alive and can still act on it. Doing it afterwards costs more and forecloses most of the options. See cross-border wills and trusts.
