There's no general public history for a certain "HDB accrued curiosity 90 27." This is probably going an inside reference variety or deal with. Accrued interest is a significant part of HDB flat ownership, especially for entrepreneurs who applied their CPF Regular Account (OA) to finance their home. Whenever you provide your HDB flat, it's essential to refund the principal number of CPF utilized for the downpayment, grants, and month-to-month installments, together with the accrued fascination, back into your CPF account. This desire is the amount your CPF financial savings would've acquired if they had remained in the OA, calculated with the prevailing CPF OA interest level (at the moment 2.five% for each annum) and compounded annually. The refund here is obligatory, and It is deducted within the income proceeds. You'll be able to check the precise quantity of CPF made use of and accrued curiosity on the CPF Web page's "House Possession" dashboard by logging in along with your Singpass.