Singapore's real estate investment yields could fall into negative territory if interest rates rise further. With lower rental yields and tighter financing rules, real estate transaction volumes are likely to decline. Property owners have turned to fixed interest rates to hedge against rising rates. When refinancing a home loan, owners should check for prepayment penalties and subsidy reimbursements. They should also carefully consider 10 key terms like the reference rate, lock-in period, prepayment penalties and interest reset dates to maximize savings and avoid penalties when choosing a home loan package.