Definitions of pass-through
(especially US) an investment where investors lend money to home buyers or businesses via a bank or official agency and the money paid back goes from the bank or official agency back to the investors
The most common type of pass-through is a mortgage-backed certificate.
the act of transferring a tax or higher price by a business to its customers; the act of a tax or other charge being paid directly by the members of a business entity (eg a partnership) rather than by the business itself
According to the IRS, in the case of a pass-through entity classified as a partnership, tax returns must be filed by the 30th day of the fourth month.