Tiered CD rates is very new me, and maybe I didn't explain it well or maybe this is an off the wall idea.
If a customer opens a CD for $50,000 (1st tier opening balance falls on or in between $1,000 to $100,000) then the customer will receive the 1.80% interest rate.
If someone opens a CD for $150,000 (2nd tier opening balance fall on or in between $100,000 to $250,000 then they will get the next tier rate 1.90%).
Let me know if we are way off course, but I thought that's how it worked. However, like I said before this is new to me.