There isn't any general public history for a selected "HDB accrued fascination 90 27." This is likely an interior reference selection or tackle. Accrued curiosity is really a critical ingredient of HDB flat possession, especially for owners who made use of their CPF Standard Account (OA) to finance their house. Once you promote your HDB flat, you have to refund the principal amount of CPF employed for the downpayment, grants, and regular monthly installments, along with the accrued desire, back again into your CPF account. This interest is the quantity your CPF personal savings would have gained if they'd remained inside your OA, calculated within the prevailing CPF OA fascination price (now two.5% for every annum) and compounded yearly. The refund is check here required, and It truly is deducted from your sales proceeds. You may Examine the precise volume of CPF utilized and accrued desire about the CPF website's "Household Ownership" dashboard by logging in with all your Singpass.