What is the danger of taking a variable rate loan?

The most significant disadvantage of variable-rate loans is their unpredictable nature. In terms of interest rates, it is nearly impossible to predict the future. While you might get lucky and benefit from lower current market rates, it's also possible that you'll end up paying more in interest. Because your interest rate is liable to change, you might end up earning or paying a different amount each month. It may only mean the difference of a few dollars, but if you’re a stickler for a monthly budget, a variable rate might not be ideal.