Earlier quoted context omitted.
That would be a nightmare. First, tax laws don't have clear intentions to begin with -- if a tax law passes with 51 out of 100 votes in the legislature, all 51 representatives could be supporting the "letter" of the law for 51 different actual intentions, many of which might not be noble in the first place (e.g. give a particular local factory a tax break to win more votes next election). Second, because of this, "in…
> The things you say should "simply be outlawed" -- how? How are you going to determine which internal loan is "expensive" versus "very expensive"? How are you going to differentiate between legitimate payments and the "royalties" you put in quotes that you call a construct? Example for interest rates: Credit risk and intrabank/central bank rates are considered by courts when judging whether a rate is “too high”. Swe…
A few percent here or there is all it takes to make a company unprofitable. Most companies don't have huge margins even when they're not trying to reduce them on purpose. You don't need the rate to be higher by a lot, only a little.
And then there is the principal. If you want profits in a jurisdiction, the entity there can get cash by e.g. selling its shares to the parent, which it then has without having to pay interest on. If you don't want profits there, the parent pays nothing (or some nominal amount) for shares and the subsidiary borrows all of its capital, which it then has to pay interest on at prevailing rates which may by itself exceed its profits indefinitely.
And loans are far from the only opportunity for this sort of thing. Pay slightly more for COGS to a sister company and you make significantly less profit, because a small percentage of gross is a large percentage of net.
One percent here, two percent there and soon a 10% margin is -0.1%.
What causes this is trying to tax something (profit) which is independent of any specific activity or jurisdiction. If a company makes phones and sells them, there is no principled reason why a certain percentage of the profit should go to the place where the phone is manufactured vs. designed vs. sold vs. the residence of the investor(s). If your jurisdiction is the one where they're sold but not manufactured or designed etc. and you want to tax that, the bleeding obvious way to do it is with VAT or some similar product/service tax. Trying to contort income tax into that shape is silly and just provides more opportunities for lawyers and accountants to find new loopholes.