@ezworldwide Hi, there is a quite good article by Mustachian about the withholding taxes based on fund domiciliation.
https://www.mustachianpost.com/withholding-taxes-on-dividends-received-the-theory-as-a-swiss-investor/
@pkumom2016 Not sure why because I personally invest in VOO, but simply because VT is more diversified and would not expose you only to US stocks and have less technology than VOO?