Can I transfer money to my parents for them to buy out my 1/3 share of the HDB flat?

You can only transfer your HDB share to your parents for them to buy out your 1/3 share under very strict circumstances governed by HDB regulations. HDB does not allow arbitrary transfer or sale of ownership shares unless there is a qualifying change in the family structure, such as divorce, marriage, or death, or if an ownership change is necessary to retain the flat. Simply transferring your share in exchange for money is not permitted unless these conditions are met and both parties meet all HDB eligibility requirements.

If the transaction is approved by HDB under a qualifying reason and your parents buy out your share, they may need to refund any CPF funds you used originally plus accrued interest. Stamp duty will generally be payable on the market value of the share, unless it qualifies for remission as a family transfer under specific conditions.

You should consult HDB directly before making any financial arrangements, as such transfers are not freely allowed and require formal approval. Legal and financial advice is strongly recommended to clarify your options and obligations.