About 2 years ago, I made a decision to do away with my HDB Housing Loan and switched my mortgage to POSB instead. Then, with interest rates near negligible for almost 5 years already, the HDB Housing Loan rate of 2.6% didn’t seem all that concessionary. Moreover, POSB made a great offer to all existing HDB owners then: 1.38% above the 3 month SIBOR rate and subjected to a maximum interest rate equivalent to the interest rate under the CPF Ordinary Account for the first 10 years of the mortgage Even though I had just stayed in my existing flat for less than half a year and intended to service my mortgage for the best part of 30 years, I found this offer too good to refuse. I immediately saved more than $100 as my mortgage went down from $1,000 plus to just $910. But well, the best of times didn’t last ......