A split loan means that a portion of the loan is subject to fixed home loan rates and a portion is subject to a variable interest rate. For instance, you might fix 50 per cent of the loan, and leave 50 per cent variable. This means that if rates go up, your repayment will only increase on the variable portion, while the other half will remain the same. A split loan is a compromise between the pros and cons of fixed and variable interest rate loans.