EARNINGS CREDIT RATE
An interest rate applied to investable account balances to determine how much expense for bank services used by a depositor is offset by the deposits maintained by that depositor. The same calculation can work in the opposite way by applying the earnings credit rate to the actual service charges to determine how much deposit balance is needed to pay for the charges. The earnings credit rate is always expressed as an annual rate even though the calculations are usually done monthly.
Also called earnings allowance rate. American Banker Glossary