Every month, IRS and the Treasury issue a Revenue Ruling listing the “applicable federal rates” (“AFRs”) for the next month. In Rev.Rul. 2019-3, 2019-IRB (https://www.irs.gov/pub/irs-drop/rr-19-03.pdf), the January annual short-term, mid-term and long-term rates are set at 2.72%, 2.89% and 3.15%, respectively. The 7520 rate is 3.4%, down from 3.6% in November and December, and back to where it was in October.