In short, yes you can. However, it’s a little more complicated than just asking for the money back. If your home loan has a redraw facility, you can use this to take from any extra repayments you had made. Alternatively, you could look into refinancing and tapping into the equity built-up through your repayments. However, in both cases, the money needs to be paid back eventually, and you’ll likely end up paying more in interest.