Cash top-up to CPF SA or SRS?

[shn]

From what I read from IRAS website https://iras.gov.sg/irashome/page.aspx?id=1572
I don't think you can enjoy tax relief for your voluntary CPF contribution except the voluntary CPF contribution made to your Medisave Account. If your Medisave Account has already maxed out, voluntary CPF contribution has no tax benefit. Am I right?

[WolfT]

From what I read from IRAS website https://iras.gov.sg/irashome/page.aspx?id=1572
I don't think you can enjoy tax relief for your voluntary CPF contribution except the voluntary CPF contribution made to your Medisave Account. If your Medisave Account has already maxed out, voluntary CPF contribution has no tax benefit. Am I right?

Yes, You can only claim tax relief for VC to MA.
If your MA has been maxed out, the excess money will be limbo at cpf earning zero interest.