DISC just received this dataset from the Business School Library on campus. This RateWatch Scholar Dataset only includes deposit interest rate data for retail and business products from 2001 to May 2020. It has data on over 7500 financial institutions (including banks, credit unions, savings and loan associations, and others) in the U.S. Variables include types of products (CD, checking account, saving account, money markets and others) and their characteristics like term length, dollar tier, and rate at survey date.
https://www.disc.wisc.edu/newcatalog/study.asp?id=8383&tid=14343