I asked this question to someone in the NIB. I don't know if this only applies to them, but he said that there wouldn't be a penalty. I wanted about 10k but just for a couple of months. He said they wouldn't negotiate a very short repayment term because it is based on your salary and they would feel that you mightn't be able to pay it. He was offering us a loan for say 2 or 3 yrs, we could make repayments for a couple of months and then there was nothing stopping us from then clearing the loan. We would only pay interest for those few months. I thought myself that it seemed a bit too easy - but that was how he explained it to us.