Yes, the 1099-K will report the whole year's income through one single 1099-K if you are a U.S. citizen and subject to U.S. income tax for the whole tax year. The treaty benefits do not apply in this case. You can take advantage of either the foreign tax credit or foreign earned income exclusion to avoid double taxation. TurboTax can help you with both 1099-K reporting and foreign tax credit/foreign earned income exclusion calculation. Please see the articles below for more information.
Filing taxes while overseas
How to enter the 1099-K in Turbo Tax?
Where to enter foreign tax credit in Turbo Tax?
Where to enter foreign earned income exclusion in Turbo Tax?
