Just want to ask a couple of questions regarding my situation:

• Sole member of a WY LLC
• Non-US person
• Non-US resident
• No US operations, income, office or any assets
• Country where business activity is has tax treaty with the USA

Am I liable to pay any US taxes?
And if not, do I have to file to the IRS at all?

I found this old posting on taxforum.us to a similar case:

LLC (single-member, nonresident) reporting requirements. - Tax Forum - Payroll, Accounting and Tax Help Forum

Where the answer from the expert was:

Your LLC is not taxable entity. Income /loss is passed through to you a member, and you pay taxes as individual. You, as a non-US resident, are not liable for US income tax for income derived outside of the US and passive income derived from the US, such as interest income, dividend income and capital gains. Therefore, you are not liable for any US income taxes, when your LLC conducts business outside of US. If an US LLC trades with US companies from outside of US, such LLC does not conduct business in US. Only presence of permanent establishments of the LLC in US, such as offices, warehouses, etc., allows to classify such LLC as a LLC conducting business in US. No income tax return required as long as your LLC conducts a trade or business outside of the US, and you are are non-US residents for income tax purposes.

Could anyone validate that this advice applies?

Many thanks.