All-In Cost

Shorthand for "all-included" costs, which are expressed as the interest paid or received for total costs of a financial transaction.

Investopedia Says:
All-in costs include the spread, commission, interest payments, and any other fees resulting from the transaction. Some banks, for example, may quote an all-in cost of a loan, expressed as a percentage of the loan's face value.

Total cost, whether explicit or implied. The all-in cost of a certificate of deposit is the rate of interest paid the depositor, the deposit insurance premium, and the opportunity cost of maintaining a noninterest bearing Reserve Requirement balance at a Federal Reserve Bank. In bank lending, the term refers to borrower's total cost of credit, including net interest charged, origination fees, service fees, utilization fees, and so on. See also Cost of Funds; Margin; Spread; Total Return.