Earn dividends on your daily checking account Rates effective as of Tuesday, September 18, 2018. Product Minimum to Open Interest Rate APY* Minimum Balance to Earn Interest Preferred Checking** $50 0.05% 0.05% under $2500 0.10% 0.10% $2500 and over * Annual Percentage Yield. Fees could reduce earnings. Rates are subject to change. ** Funds transferred from other Investors Bank accounts are not eligible. Preferred Banking customers only.