There isn't a community document for a specific "HDB accrued desire ninety 27." This is likely an inner reference number or handle. Accrued fascination can be a vital component of HDB flat possession, specifically for proprietors who used their CPF Everyday Account (OA) to finance their residence. If you promote your HDB flat, you have to refund the principal amount of CPF useful for the downpayment, grants, and regular monthly installments, along with the accrued desire, back again into your get more info 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 (now 2.5% for each annum) and compounded yearly. The refund is required, and It truly is deducted in the gross sales proceeds. It is possible to Verify the precise level of CPF used and accrued fascination within the CPF Web-site's "Property Ownership" dashboard by logging in with the Singpass.