How is inflation in your country? To consider 4% a good return, we need to look after inflation: do you mean 4% overcoming it or not? In my country we count on federal treasury that at this moment grants up to 3,9% interests above inflation. It means we earn inflation rate + 3,9%. After tax deduction, it means 2,90 above inflation. I consider it a good compromise to not go risky.The higher the risk, the higher the profit. Treasury bills is a safe way to invest but it doesn’t generate high returns. USA treasury bills generated 4% of returns on investments and 4% isn’t a good profit on a run of 12-13 months of investment. Other countries treasury bills may even be lower than that for example in Nigeria, the ROI on treasury bill 3.5% and you must invest at least $1000( #400,000 or more). 3.5% of 400,000 for a year equals 14,000 I believe that’s a very small profit.