AT the Monaco apartment finder link at
http://www.pirasimmobilier.com/en/fiches/13869-studio flat in annonciade mixte use.html
Flat with roughly 40 square meter is about 2500 euros so that three month of min staying costs less than US$10K. Compare this $10K with your yearly CapGain and CapGainTaxRate.
If IB have lowest commission, then flying to Monaco with IB account in US dollars to trade NYSE might be a best choice, in terms of taxing.
Flat 100 sqm costs about 5.000 euro at month, so 60.000 euro a year.
Various expenses 40.000 euro a year.
So taxlevel is 10% if you make at least 1.000.000 euro a year. And this construction is completely legal.
Opening LLC's in low tax countries will be considered as tax evasion. It will be up to you to proof it is a real economical construction. It will cost you money too, and only afterwards you will see how you will be taxed in reality. If they don't accept your construction you're in for a +50% taxation.
Please note that you do NOT have to live there but need to pay 3 months of rent, possibly for vacation
This is completely wrong!
Nobody will rent you for 3 months. By law you should have a lease for
at least 12 months.
You need to ask a domicile in Monaco. You will never receive it for 3 months only.
You will have to go to the police for an interview.
You will need a number of insurances (social security, health...), change driver's licence, register your car in Monaco.....
It is explicitly mentioned that you have to live there at least 3 months a year.
The three months required amount of time to be spent in Monaco each year does not have to be in one block.
When the carte de sejour is due for renewal, the resident needs to produce the most recent 4 months electricity bills, a new bank letter (attestation) is required, with a copy of the valid property lease, the expiring carte de sejour and a new set of residency renewal forms needs to be completed.
So it is not just "take a 3 months holiday in Monaco"!!!
Check professional people, don't use internet based information!!!!