That might be true but might not since Tesla has substantial
R&D outside the US. examples:
- much of factory automation done in Germany,
-while motor development is primarily done in Greece, and
-much battery development is done in Canada.
A fair amount of SpaceX technology is downstreamed to Tesla. We don’t know anything about geographical sourcing for them, nor do we know whether the Tesla sourcing was direct or indirect. Even for Inconel, despite the NASA/SpaceX leadership much of it is sourced from non-US sources, so we do not know absolutely whether or not it was US technology R&D.
These are well known, many others could be.
Maybe US R&D is 95%, maybe not.
From an accounting perspective there are almost limitless legitimate ways to geographically locate R&D. The Silicon Valley first have been masterful in that respect. Quite legitimately locating expenses in high tax areas and revenues in low tax areas is normally beneficial.
As
@The Accountant can explain better than can I transfer pricing is an arcane art. FWIW, during three decades of living and working in more than a dozen countries my employment was only once based in the same jurisdiction in which I worked. Such is the norm in international business. Thus, Tesla R&D could quite legitimately be booked in quite a few different jurisdictions.
Clues are often found in those mysterious balance sheet categories showing contingent items. As
@The Accountant explained these are arcane and are often not exactly what they seem to be. Footnotes help, but often not then.
Long post to explain why we should be very careful with allocation of both R&D and SG&A to specific countries. GAAP is full of gaps.