Wondering what to do with your tax refund? Take the lump sum payment and seize this opportunity to establish an emergency fund. This is a smart investment move for your financial future. The ideal emergency fund has three to six months of living expenses in it so that you have cash to cover expenses when unexpected events occur. Without an emergency fund, you’d have to resort to using credit cards or taking out a loan to cover the costs of unexpected expenses. When you use credit, you could end up owing tremendously more due to the interest accrued. This certainly affects your ability to save money and keeps you in the debt cycle.