Risk of audits or penalties from the IRS unfortunately aren’t based on normal ideas of right and wrong. Clients will often say “I haven’t done anything wrong”. Our recommendation is to remain open and be realistic about IRS risks we identify.
One of the most common questions that clients have is ‘why do I owe US tax’? There are a lot of steps to computing the US taxes you owe, and you can’t assume all steps are exactly the same as the country where you live.