In most cases it is recommended to split your home loan.
There are two key reasons;
- It gives you better flexibility if you are wanting to pay your mortgage off faster and is the loan structure that most of the mortgage reduction systems utilise.
- It spreads the risk across two or more loans and fixed rate loan terms so that if interest rates were to rise the impact is cushioned to reduce the immediate financial impact.
Your mortgage professional can explain this in more detail.