The means test is a statement on an official form that must be completed by individual debtors filing for bankruptcy relief. Joint debtors may generally complete a single form. Official Bankruptcy Form B122A-1 is the form Chapter 7 debtors will complete for "means testing" purposes; Official Bankruptcy Form B122C-1 is the form Chapter 13 debtors will complete. A link to the Official Bankruptcy Forms is provided below:
http://www.uscourts.gov/forms/bankruptcy-forms
A debtor must enter income and expense information on the appropriate Form B122, and then make calculations using the information entered. Some of the data needed to complete these forms, such as a debtor's current monthly income, comes from the debtor's own personal records. Other information needed to complete the forms comes from the Census Bureau and the Internal Revenue Service (IRS) standards.
A link with more in depth information from the U.S. Trustee program is provided below.