If you began working in another county after January 1, 2013, the county where you worked for tax purposes will not change until next year.
Example. Jessie worked in Marion County on Jan. 1, 2013. She quit that job and began a new one in Johnson County on Feb. 10, 2013. She will enter Marion County as the county where she worked even though she changed jobs during the year.
If you had more than one job on January 1, 2013, your principal place of employment is the job where you worked the most hours and earned the most income.