There's no public history for a selected "HDB accrued fascination 90 27." This is likely an interior reference selection or tackle. Accrued curiosity is really a crucial 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 must refund the principal degree of CPF employed for the downpayment, grants, and regular monthly installments, along with the accrued desire, back again into your CPF account. This curiosity 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 (currently two.5% for every annum) and compounded yearly. The refund is required, and It can be deducted from your sales proceeds. You could Check out the exact number of CPF employed and accrued desire about the click here CPF Web site's "Household Ownership" dashboard by logging in with all your Singpass.