he computation of the Adjustable Rate Mortgage (ARM) Index is as follows:
Average of the non-promotional HDB housing loan rates of the 3 local banks, namely DBS (POSB), OCBC, and UOB.
Note: The monthly interest rate is subject to the floor rate of the HDB concessionary interest rate.
The current HDB market interest rate is 3.16% p.a. The rate is reviewed on the 15th day of each month, and any revision will take place on the 1st of the second month that follows.
For example, if the ARM index changes, resulting in a corresponding change in the HDB market interest rate on 15 January, the new rate will take effect for payments due on 1 March
