There is not any community file for a certain "HDB accrued curiosity 90 27." This is probably going an inside reference range or deal with. Accrued curiosity is really a critical ingredient of HDB flat possession, especially for proprietors who used their CPF Everyday Account (OA) to finance their residence. If you market your HDB flat, you need to refund the principal quantity of CPF useful for the downpayment, grants, and every month installments, combined with the accrued curiosity, again into your CPF account. This fascination is the amount your CPF savings would've attained if they had remained as part of your OA, calculated with the prevailing CPF OA interest level (at the moment 2.five% for each annum) and compounded yearly. The refund is obligatory, and It really is deducted from the profits proceeds. It is possible to Verify the precise level of CPF utilized and click here accrued desire within the CPF website's "Household Ownership" dashboard by logging in with all your Singpass.