usa – Dual/Dutch American Citizen visiting Netherlands

My wife and I live in the United States, I’m a dual American/Dutch citizen who has never lived in the Netherlands, my wife is American. We plan to move to the UK for 6 months, then to the Netherlands for as long as we can without triggering a requirement to file both American and Dutch taxes. How long do we have to stay? It might help to add, we do not have any Dutch investments or Dutch income and will not work in the Netherlands, nor do we own property, our bank will remain in the United States. Can anyone provide any insight or advice on how to avoid that tax scenario? Thank you for any help. Peter