Mortgage cash flow refers to the cash inflows and outflows associated with a mortgage loan. It represents the movement of money between the borrower and the lender over the life of the mortgage.

For the lender, mortgage cash flow primarily consists of the monthly mortgage payments received from the borrower. The lender earns income through the interest charged on the loan and may also collect fees such as late fees or delinquent payments. 

Analyzing mortgage cash flow is important for both borrowers and lenders. Borrowers need to understand their monthly obligations and ensure they have sufficient income to cover the mortgage payments. Lenders assess mortgage cash flow to evaluate the borrower’s ability to repay the loan and determine the risk associated with lending.