I just topped up $1.5k into my mum's CPF Retirement Account to complete the $7k CPF Cash Top-up Tax Relief this year under the Retirement Sum Top-Up (RSTU) scheme. I have already topped up $5.5k earlier and have explained why I did so. See related post: Why I Top Up My Mum's CPF Retirement Account instead of giving Cash? I have also started to make voluntary refund of $3k+ into my CPF OA account. This is a loose amount I chose from my savings account for repaying the "loan" from my own CPF OA. I have blogged about booking and paying down-payment for a HDB BTO property earlier this year. See related posts: HDB BTO Flat Downpayment Booked my first property in District 13 (City Fringe) beside an MRT! I decided to refund cash into CPF OA account because I do not like the idea of accrued interest incurred on withdrawn savings from my CPF OA...