1:14-14 Sarah, a married taxpayer who files a joint return, is considering a foreign assignment for two years. In 2020, she will earn $120,000 in the foreign country. Sarah has no other income. She will be eligible for either the foreign tax credit or the foreign-earned income exclusion. The average tax rate on Sarah's earnings if fully taxable under U.S. law would be 24%. The average tax rate for the foreign salary is 20% under the foreign country's laws.