Quote from Grandluxe:
The biggest problem is the prop firms are formed as US partnerships, which is why if you become part of it, you are regarded as a domestic entity for taxation purposes.
I've consulted with a tax attorney about this, and it's considered gray area. The reasons being:
- the foreign person is not receiving distributions/profits at the brokerage level as a class a partner, they only are receiving distributions as class b partners based on their personal profits/losses trading equities for their account.
- they are not receiving a salary, and are being charged a commission, which effectively makes them a customer account with a relationship more similar to a brokerage, which is exempt.
- any profit split that they give to the firm, they do not receive back in the firm distributions (similar to point 1), since company profits are not distributed to class b members.
essentially, as "partners" they carry financial risk in the firm, but have no upside gain for that risk. so, while the company may be engaged in an effectively connected business, the foreign partner through his class b holdings is not... they are simply trading stocks which is not effectively connected. if the foreign partner were an actual class a partner participating in firm profits, then it WOULD be connected with a business in the US.
the attorney was pretty adamant that a good case could be made if challenged and was working on a letter for a large offshore group. take that for what it's worth, and seek your own counsel, but it seemed pretty doable.
the other option to be safe, would be to setup a corp in a treaty country with low tax, lease the trading strategies/technologies to an onshore entity that would be the class b member, and have the onshore entity pay a royalty to the foreign entity. profit.