if someone loans u money and nothing is in writing and u lose ur job and r having difficulty paying back can they charge u interest
You answered your question. No, the lender cannot charge you pre-judgment interest at the rate specified in the contract (promissory note) because there is nothing in writing here. However, if the lender sues you and gets a judgment against you, then any judgments will earn interest at the statutory rate of 6% per year.