How do i enter my wages and taxes earned and paid in the united kingdom into turbotax as it's outputting that I owe taxes to the US govt? UK has tax treaty with US.

I'm a US citizen filing taxes whilst living 100% of the year in UK. I work for a UK company and pay UK taxes. So does my spouse. When I enter the numbers into Turbotax, it comes out that I owe a large amount of money in US taxes. Why is this the case when I already pay UK taxes?