Zachary L. (SSN 123-45-6789) and Cici K. Mao (SSN 987-65-4321) reside at 520 Chestnut Street, Philadelphia, Pennsylvania 19106. They are both under 65 years old and have one dependent (their son, Oliver, age 4, SSN 111-22-3333). They do not wish to take advantage of the presidential election campaign check-off. Other relevant information includes:

Zachary's salary as a manager: $40,000

Cici's salary as a teacher: 45,000

Interest (First National Bank): 200

Withholding: 5,600

Complete their Form 1040A for 2018, assuming they are married and file jointly.