Sort Name Line is another name under which the organization does business.  Also used for trade names, chapter names, or local numbers for subordinate organizations of group rulings.
Amount from Form 990, Part 1, Line 12, or Part 1, Line 9, of Form 990EZ.
Income Amount is a computer generated amount from the most recent Form 990 series return filed by  the organization. Income Amount is computer generated using PART I, Total Revenue Line 12 and ad ding "back in" the expense items, i.e. Line 6b (Rental Expenses) shown on the Form 990 return.  O n Form 990EZ it is generated using PART I, Line 9 and adding "back in" the expense items, i.e. Li ne 5b (Cost or Other Basis Expenses).  Income Amount for Form 990PF is generated using Part I, Li ne 10b (Cost of Goods) and adding Part I, Line 12, Col. (A) (Total Revenue Col. A) and Part IV, L ine 1, Col. (G) (Cost or Other Basis).  This field is dollars only.
Asset Amount is an amount from the most recent Form 990 series return filed by the organization.   Asset Amount is the Book Value Total Assets End of Year   PART X Balance Sheet Line 16 Col. (B)  shown on the Form 990.  This field is also from PART II, Line 25, Col. (B) EOY on Form 990EZ and  PART II, Line 16, Col. (b) on Form 990PF.  This field is dollars only.
This designates the accounting period or fiscal year ending date (Jan   Dec) of the organization (MM).
This indicates the primary return(s) the organization is required to file.
Income Codes relate to the amount of income shown on the most recent Form 990 series return filed by the organization.
Asset Codes relate to the book value amount of assets shown on the most recent Form 990 series return filed by the organization.
This is the tax period of the latest return filed (MM).
This is the tax period of the latest return filed (YYYY).
This is the tax period of the latest return filed (YYYYMM).
The EO Status Code defines the type of exemption held by the organization.
Deductibility Code signifies whether contributions made to an organization are deductible.
This is the month on a ruling or determination letter recognizing the organization's exempt status.
This is the year (YYYY) on a ruling or determination letter recognizing the organizat ion's exempt status.
This is the month and year (YYYYMM) on a ruling or determination letter recognizing the organizat ion's exempt status.
One to four different classification codes may be present.
Affiliation Code defines the organizational grouping.
Subsection Codes are the codes shown under section 501(c) of the Internal Revenue Code of 1986, w hich define the category under which an organization may be exempt.
This is a four-digit internal number assigned to central/parent organizations holding group exemption letters.
In Care Of Name is the person (officer, director, etc.) to whose attention any correspondence should be directed.
Employer Identification Number (EIN) is a nine digit number assigned by the IRS to identify a particular organization's account.
by Jean Roth , jroth@nber.org , 25 Mar 2014