You mean to have a transparent US LLC and only have 5% of the profits taxed in the US?
Then you would have to convince the IRS that only 5% profits are ECI. No idea how hard that would be, but good CPA's and tax lawyers from the US don't come cheap. You could probably forget about paying less than at least $400 per hour for their time, likely more.
If the US LLC is owned by a foreign entity that︂ is not transparent (like a FZCO), there would also be 30% branch profit tax.
Say you make $10M profit with your transparent US LLC and you could get the IRS︃ to accept that only 5% are ECI (big if), you would then first pay CIT︄ on those 500k in the US.
Say the federal CIT is 21% (I believe Trump︅ may have plans to lower it) and that the company only does business in tax-free︆ states (in California, you would have to add another ~9% according to Google). So then︇ you have 395k left. On this amount you then pay 30% BPT, so you only︈ get $276,500 out to the FZCO. I'm not sure if this would then be taxed︉ in the UAE again.
The other $9.5M would be taxable in the UAE anyway, which︊ would leave you with $8,645,000.
So in a best-case scenario you would be paying $960k︋ on your 10M profits, or 9.6%.
That's not very competitive. In Malta, you could be︌ paying 5% and you would also lower the BPT to 5% or 15% (not sure),︍ definitely much lower than with Dubai.
You could also try to shift profits through invoices︎ (reducing the profit in the US further), subject to transfer pricing restrictions, but then you️ would also pay 9% in Dubai (instead of 21%+ in the US), or 5% in Malta.
It's just not a good idea to have ECI without treaty benefits, as the 30% WHT/BPT stings.
Not sure what you mean here. If you have ECI, you'll want to use a treaty country. But watch out for LoB clauses in the treaty.
Did you︀ get a quote for a Bahrain setup?