How Much Is too Much to Pay In Taxes? For the millions of Americans retired or retiring across Europe, financial planning has long been a balancing act between local tax laws and the unique demands of the U.S. tax system. Favorable regimes, like Portugal's recently ended Non-Habitual Resident (NHR) program, have offered years of stability and significant savings.

Life just continues to prove to us that we should be done this sooner. Over the past six months, our travels have taught us a great deal,...