Generally, your household includes the people you put on your tax form: you, your spouse, and any children or relatives you financially support.

When filling out your application, do include:

• Yourself
• Your spouse;
• Your children who live with you, even if they make enough money to file a tax return themselves
• Your unmarried partner who needs health coverage
• Anyone you include on your tax return as a dependent, even if they don’t live with you
• Anyone else under 21 whom you take care of and lives with you.

When filling out your application, don't include:

• Your unmarried partner who doesn’t need health coverage and is not your dependent
• Your parents who live with you, but file their own tax return and are not your dependents
• Other relatives who file their own tax return and are not your dependents or
• Roommates and other unrelated people who are not your dependents.